Troilus Gold Project
description
Transcript of Troilus Gold Project
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TABLE OF CONTENTS PAGE
1 SUMMARY.................................................................................................................. 1-1 Introduction................................................................................................................ 1-1Geology...................................................................................................................... 1-2Mineralization ............................................................................................................ 1-3 Mineral Resource Classification ................................................................................ 1-4 Cut-Off Grade ............................................................................................................ 1-4 Mineral Resource Estimate ........................................................................................ 1-5 interpretation and conclusions ................................................................................... 1-6 recommendations ....................................................................................................... 1-7
2 INTRODUCTION AND TERMS OF REFERENCE .................................................. 2-1
3 RELIANCE ON OTHER EXPERTS ........................................................................... 3-1
4 PROPERTY DESCRIPTION AND LOCATION........................................................ 4-1
5 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY........................................................................................................... 5-1
6 HISTORY ..................................................................................................................... 6-1Prior Ownership ......................................................................................................... 6-1 Exploration and Development History ...................................................................... 6-1 Historical Mineral Resource and Mineral Reserve Estimates ................................... 6-4 Production History ..................................................................................................... 6-5
7 GEOLOGICAL SETTING ........................................................................................... 7-1 Regional Geology ...................................................................................................... 7-1 Local Geology............................................................................................................ 7-1 Property Geology ....................................................................................................... 7-5
8 DEPOSIT TYPES......................................................................................................... 8-1
9 MINERALIZATION .................................................................................................... 9-1
10 EXPLORATION....................................................................................................... 10-1
11 DRILLING................................................................................................................ 11-1
12 SAMPLING METHOD AND APPROACH............................................................ 12-1
13 SAMPLE PREPARATION, ANALYSES AND SECURITY ................................. 13-1 Sample Preparation and Analytical Protocols.......................................................... 13-1 Quality Control and Quality Assurance................................................................... 13-3
14 DATA VERIFICATION .......................................................................................... 14-1 Underground project Database Validation............................................................... 14-1 Underground project Database Verification ............................................................ 14-1
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15 ADJACENT PROPERTIES ..................................................................................... 15-1
16 MINERAL PROCESSING AND METALLURGICAL TESTING......................... 16-1 Crushing................................................................................................................... 16-3Grinding ................................................................................................................... 16-3Gravity Concentration.............................................................................................. 16-4 Flotation ................................................................................................................... 16-4On-Stream Analyzer ................................................................................................ 16-5 Filtering.................................................................................................................... 16-5Tailings Disposal ..................................................................................................... 16-5
17 MINERAL RESOURCE ESTIMATE...................................................................... 17-1 Diamond Drill Hole Database.................................................................................. 17-1 Wireframe Models ................................................................................................... 17-2 Composite Control Interval Statistics ...................................................................... 17-3 Assay Statistics ........................................................................................................ 17-4 Composite Statistics................................................................................................. 17-6 Cutting Levels.......................................................................................................... 17-7 Trend Analysis ....................................................................................................... 17-11 Variography ........................................................................................................... 17-15 Search Strategy and Grade Interpolation Parameters ............................................ 17-16 Tonnage Factors..................................................................................................... 17-17 Troilus Underground Block Model........................................................................ 17-18 Block Model Validation......................................................................................... 17-19 Mineral Resource Classification Criteria............................................................... 17-21 Cut-Off Grade ........................................................................................................ 17-22 Mineral Resource Estimate .................................................................................... 17-23
18 OTHER RELEVANT DATA AND INFORMATION ............................................ 18-1
19 INTERPRETATION AND CONCLUSIONS.......................................................... 19-1
20 RECOMMENDATIONS.......................................................................................... 20-1
21 REFERENCES ......................................................................................................... 21-1 Related to Geology, Mineralization, and Deposit Type .......................................... 21-1 Related to Mineral Resource and Mineral Reserve Estimates................................. 21-2 Related to Quality Assurance and Quality Control.................................................. 21-6 Related to Pit Slope Designs.................................................................................... 21-9
22 SIGNATURE PAGE ................................................................................................ 22-1
23 CERTIFICATE OF QUALIFICATIONS................................................................. 23-1
24 APPENDIX 1............................................................................................................ 24-1 Claims ...................................................................................................................... 24-1
25 APPENDIX 2............................................................................................................ 25-1 Geological Sections and Plans ................................................................................. 25-1
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26 APPENDIX 3............................................................................................................ 26-1 Composite Control Table and Longitudinal Sections.............................................. 26-1
27 APPENDIX 4............................................................................................................ 27-1 Variography Figures ................................................................................................ 27-1
LIST OF TABLES PAGE
Table 1-1 Z87 Underground Mineral Resource Estimate – December 2005 ................ 1-5 Table 2-1 List of Abbreviations..................................................................................... 2-3 Table 6-1 Major Historical Milestones .......................................................................... 6-5 Table 6-2 Troilus Mine Production History................................................................... 6-6 Table 11-1 Summary of Historical Drilling Programs ................................................ 11-1 Table 16-1 2005 Metallurgy Summary........................................................................ 16-2 Table 17-1 Underground Gemcom Database .............................................................. 17-2 Table 17-2 Composite Control Summary .................................................................... 17-3 Table 17-3 Assay Statistics.......................................................................................... 17-4 Table 17-4 Resource Assay Length and Grade Statistics ............................................ 17-5 Table 17-5 Resource Assay Length Distribution......................................................... 17-6 Table 17-6 3 m Composite Length and Grade Statistics ............................................. 17-7 Table 17-7 Resource Assay Decile Analysis ............................................................. 17-10 Table 17-8 Block Model Rock Codes........................................................................ 17-18 Table 17-9 Z87 Underground Mineral Resource Estimate – December 2005 .......... 17-23
LIST OF FIGURES PAGE
Figure 4-1 Troilus Mine Location.................................................................................. 4-2 Figure 4-2 Troilus Mine Property Claim Map............................................................... 4-3 Figure 5-1 Site Infrastructure......................................................................................... 5-3 Figure 7-1 Regional Geology......................................................................................... 7-3 Figure 7-2 Local Geology.............................................................................................. 7-4 Figure 7-3 Property Geology ......................................................................................... 7-6 Figure 7-4 Detailed Property Geology........................................................................... 7-7 Figure 9-1 Cu and Au Distribution in the 87 Zone........................................................ 9-3 Figure 16-1 Historical Gold and Copper Mill Recoveries........................................... 16-2 Figure 17-1 Resource Assay Histogram ...................................................................... 17-8
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Figure 17-2 Resource Assay Log Probability Plot ...................................................... 17-9 Figure 17-3 5,110 Bench Blasthole Gold Contours................................................... 17-13 Figure 17-4 Section 13,600N Blasthole Gold Contours ............................................ 17-14 Figure 17-5 Density Testwork Apparatus, Balance and Steel Test Samples............. 17-17 Figure 17-6 Underground Cut Gold Grade Block Models ........................................ 17-20 Figure 17-7 Underground Classification Block Model ............................................. 17-22
LIST OF APPENDIX FIGURES & TABLES PAGE
Table 24-1 List of Claims ............................................................................................ 24-2 Table 26-1 Composite Control Intervals...................................................................... 26-2
Figure 25-1 Cross Section 13,350N............................................................................. 25-2 Figure 25-2 Cross Section 13,600N............................................................................. 25-3 Figure 25-3 Cross Section 13,700N............................................................................. 25-4 Figure 25-4 Cross Section 13,800N............................................................................. 25-5 Figure 25-5 Cross Section 13,900N............................................................................. 25-6 Figure 25-6 Cross Section 13,950N............................................................................. 25-7 Figure 25-7 5,100 m Plan............................................................................................. 25-8 Figure 25-8 5,000 m Plan............................................................................................. 25-9 Figure 25-9 4,900 m Plan........................................................................................... 25-10 Figure 25-10 4,800 m Plan......................................................................................... 25-11 Figure 26-1 Cut Gold Grade Contours......................................................................... 26-4 Figure 26-2 Horizontal Thickness Contours................................................................ 26-5 Figure 26-3 Cut Gold Grade Times Horizontal Thickness Contours .......................... 26-6 Figure 27-1 Down Hole Variogram - All 3 m Composites ......................................... 27-1 Figure 27-2 Along Strike Variogram - All 3 m Composites ....................................... 27-1 Figure 27-3 Along Strike Variogram – Lens 20 3 m Composites ............................... 27-2 Figure 27-4 Down Dip Variogram – Lens 20 3 m Composites ................................... 27-2 Figure 27-5 Along Strike Variogram – Lens 20 Blastholes ........................................ 27-3 Figure 27-6 Down Dip Variogram – Lens 20 Blastholes ............................................ 27-3
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1 SUMMARY INTRODUCTION
Roscoe Postle Associates Inc. (RPA) was retained by Inmet Mining Corporation
(Inmet) to prepare an independent Technical Report on the December 31, 2005 Troilus
Mine Zone 87 (Z87) underground Mineral Resource estimate. Inmet owns a 100%
interest in the Troilus Mine in northern Quebec. The Troilus Mine is an open pit
operation that has been producing gold, copper, and silver continuously since November
1996. This report was written in accordance with the National Instrument 43-101F1
guidelines. This Technical Report conforms to NI 43-101 Standards of Disclosure for
Mineral Projects.
The Troilus Mine is located approximately 175 km by road from the town of
Chibougamau, which has a population of approximately 8,500. The Troilus Mine
property consists of 119 claims and one surveyed mining lease that collectively cover
6,422 hectares. All the claims and the mining lease are in good standing and 100%
owned by Inmet.
The mine started commercial production in October 1996 and has since operated
continuously. By the end of 2005, approximately 49.0 million tonnes of ore averaging
1.09 g/t Au and 0.119% Cu have been milled and 6.3 million tonnes of lower grade
mineralization have been stockpiled. A total of approximately 184.7 million tonnes have
been excavated, including 18.4 million tonnes of overburden and 110.8 million tonnes of
waste rock. The overall mill recovery to date averages 83.3% for gold and 89.5% for
copper. The Troilus Mine has produced over 1,390,000 ounces of gold and over 50,000
tonnes of copper to date. In 2003, the mine celebrated producing its millionth ounce of
gold. In 2004, Inmet approved a mill expansion feasibility by Met-Chem Canada Inc.
(Met-Chem) to increase mill capacity to 18,000 tpd. Modifications to the mill were
completed in December 2004 and the full 18,000 tpd capacity was reached in 2005.
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GEOLOGY
The Troilus gold-copper deposit lies within the eastern segment of the Frotet-Evans
Greenstone Belt, in the Opatica Subprovince of the Superior Province. The Frotet-Evans
Archean greenstone belt extends for more than 300 km between James Bay and
Mistassini Lake, and varies from a few kilometres up to 45 km in width. The belt is
divided into two similar volcano-sedimentary domains (west domain and east domain).
Half of the west domain consists of tholeiitic basalts, the remainder being felsic
pyroclastic rocks, gabbro intrusions, pyroxenites and peridotite. The east volcanic
domain is known as the Frotet-Troilus Domain.
The eastern segment of the Frotet-Evans Archean greenstone belt (Frotet-Troilus
Domain) is underlain by a supracrustal sequence of submarine mafic volcanics with
intercalated cogenetic mafic intrusions. Felsic volcanic and pyroclastic rocks and minor
epiclastic sedimentary rocks, as well as ultramafic horizons, are also found. These
supracrustal rocks are intruded by granitoid plutons and dikes, which probably range
from pre-tectonic to post-tectonic in age.
The rocks are variably deformed and are affected by a strong regional foliation.
Subhorizontal mesoscopic to megascopic folds are common, affecting both regional
foliation and primary layering. The metamorphic grade in the North Troilus area ranges
from greenschist to lower amphibolite facies, the higher grades appearing around the
borders of certain intrusions and towards the margins of the greenstone belt.
The property geology is characterized by a sequence of intermediate to mafic flows
and breccias, locally with some felsic volcanics, cut by comagmatic gabbroic and
ultramafic sills. The gold and copper mineralization is hosted in a multiphased gabbroic
to dioritic intrusion, now called the Troilus Diorite.
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MINERALIZATION
There are two main zones of mineralization at the Troilus Mine, Z87 and J4. Both
Z87 and J4 are hosted within the northeastern tip of the Troilus Diorite intrusion, which
encloses elongated zones of hydrothermal breccia and coeval feldspar- and quartz-
porphyritic dike and sill swarms. Breccias, porphyries, and mineralization strike
northeast and dip moderately at approximately -50° to -65° to the northwest. Z87 extends
for approximately 1,300 m and is up to 400 m wide in the open pit. The Z87
mineralization dip generally increases progressively to the north from approximately –
55° in the south to –65° in the north. The mineralization rakes moderately to the north.
The Z87 blasthole data and the deep diamond drilling intersections reveal a number of
higher grade ore shoots plunging to the west-northwest at -30° to –50°.
Compared to Z87, J4 is narrower, has a lower copper grade and more free gold, and
dips more steeply at –65°W. The J4 ore shoots appear to rake steeper to the north. J4
extends for 1,200 m and is generally less than 100 m wide. No underground Mineral
Resources currently exist below the J4 open pit.
Chalcopyrite and pyrrhotite, with subordinate pyrite, are the main sulphides
encountered in the central part of the deposit. The sulphides are most abundant in the
hydrothermal breccia matrix, along with biotite enrichment where up to 5% to 10%
sulphides can be present. The breccia pseudofragments are less enriched and, overall,
Z87 and J4 mineralization contains approximately 1% to 2% sulphides.
Preliminary studies made in the early 1990s on drill core samples from Z87 showed
that 89% of the gold occurs as free gold or electrum and as inclusions in the non-metallic
gangue material. Only 2% of the gold is associated with chalcopyrite, the remaining 9%
occurring within pyrite and/or pyrrhotite. The size of the gold grains ranges from one
micron up to 340 microns, with 47% being larger than 100 microns.
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MINERAL RESOURCE CLASSIFICATION
The definitions for resource categories used in this report are consistent with those
defined in CIM (2000 and 2004) and adopted by NI 43-101. In the CIM classification, a
Mineral Resource is defined as “a concentration or occurrence of natural, solid, inorganic
or fossilized organic material in or on the Earth’s crust in such form and quantity and of
such grade or quality that it has reasonable prospects for economic extraction”.
Resources are classified into Measured, Indicated, and Inferred categories. A Mineral
Reserve is defined as the “economically mineable part of a Measured or Indicated
Mineral Resource demonstrated by at least a Preliminary Feasibility Study”. Mineral
Reserves are classified into Proven and Probable categories.
RPA developed new Mineral Resource classification criteria for the Troilus
underground mineralization based on trend analysis work, variography studies, and
geological continuity. Overall, the Z87 mineralization exhibits good gold grade and
thickness continuity along strike and down dip.
RPA constructed wireframe solids to define continuous areas of Indicated and
Inferred Mineral Resources. In RPA’s opinion, there is sufficient drilling within the
Indicated wireframe to classify all of the mineralization situated within it as Indicated.
The Inferred wireframe extends the resources beyond the Indicated wireframe by
approximately 100 m along strike to the north and to the south and by 70 m vertically,
down to the 4,700 m elevation. In addition, only blocks that have interpolated grades
were classified as Indicated or Inferred. Consequently, many of the blocks located in the
Inferred wireframe were excluded entirely from the resource estimate.
CUT-OFF GRADE
On December 8, 2005, the gold price was US$514/oz (C$596/oz) and the US
exchange rate was 1.16 Canadian dollars for each US dollar. Inmet has assumed a
US$450/oz (C$540/oz) gold price, a 1.20 US exchange rate, an 86% mill recovery, an
operating cost in the $13/t to $14/t range, and a copper credit equivalent to approximately
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0.1 g/t Au to estimate a breakeven cut-off grade of approximately 0.80 g/t Au. The
mineralization wireframes were built based on the 0.8 g/t Au breakeven cut-off grade,
and the resources are reported at a zero cut-off grade because the proposed underground
bulk mining method does not permit selective mining of individual blocks.
Approximately 7.0% of the Indicated Mineral Resource tonnage is internal waste related
to blocks with grades less than 0.8 g/t Au.
RPA has confirmed that a 0.8 g/t Au cut-off grade has been consistently applied to
build the mineralization wireframes. In RPA’s opinion, the 0.8 g/t Au cut-off grade is
reasonable and acceptable for constructing the mineralization wireframes and is
consistent with the above stated assumptions. RPA believes that the mineralization
wireframe volumes are sensitive to changes in the cut-off grade and recommends
adjusting the mineralization wireframes if the cut-off grade changes significantly.
MINERAL RESOURCE ESTIMATE
The Z87 underground Mineral Resource estimate as of December 2005 is
summarized in Table 1-1.
TABLE 1-1 Z87 UNDERGROUND MINERAL RESOURCE ESTIMATE – DECEMBER 2005 Inmet Mining Corporation - Troilus Mine, Québec
Mineral Resource Category TonnesAu(g/t)
Cu(%)
Gold(ounces)
Copper (x1000 lbs)
Measured Mineral Resource
Indicated Mineral Resource 29,400,000 1.48 0.16 1,400,000 105,400Total Measured and Indicated Mineral Resource 29,400,000 1.48 0.16 1,400,000 105,400Total Inferred Mineral Resource 7,900,000 1.18 0.14 300,000 24,800
Mineral Resource Estimation Notes: Mineral Resources reported at a zero cut-off grade. High gold assays cut to 10 g/t Au. Mineralized wireframe models constructed based on approximately a 0.8 g/t Au cut-off grade. Blocks are 10 m by 10 m by 10 m. A 2.86 tonnes/m³ tonnage factor used. Inverse distance squared grade interpolation for gold and copper using 80 m by 80 m by 15 m primary search radii and 120 m by 120 m by 30 m secondary search radii. Gemcom Software International Inc. Resource Edition Version 4.02 was used.
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The Z87 underground Mineral Resources are based on a US450/oz gold price. The
Z87 underground Indicated Mineral Resources total 29.4 million tonnes at an average
grade of 1.48 g/t Au and 0.16% Cu and contain approximately 1.4 million ounces of gold
and 105 million pounds of copper. There are also 7.9 million tonnes of Inferred Mineral
Resources averaging 1.18 g/t Au and 0.14% Cu. Inmet assumes that a 25 m thick crown
pillar will be recovered, and, therefore, no deduction has been made for the crown pillar.
INTERPRETATION AND CONCLUSIONS
A significant underground Mineral Resource exists under the Troilus Mine Z87 open
pit. The mineralization gold grade and thicknesses are very continuous and the
mineralization is still open along strike and at depth.
There are currently no Mineral Reserves estimated for the Troilus UG Project. In late
December 2005, SNC-Lavalin Inc. (SLI) worked with Inmet to prepare a detailed
integrated technical draft report that presented underground development scenarios to two
different elevations (4,910 m and 4,770 m) below the Z87 pit bottom at the 5,060 m
elevation (Inmet-SLI, 2005).
The risk of failure in the underground excavations increases with the extraction ratios.
Inmet retained ITASCA Consulting Canada Inc. (ITASCA) to prepare the geomechanics
assessment. Dr. W.F. Bawden (of Bawden Engineering Limited) was also retained, and
proposed a more conservative approach to reduce the mining method risk. Both
geomechanic studies agree that the risk is limited at lower mine extraction rates of
approximately 60%, however, Bawden (2005) states that the feasibility of achieving
extraction rates above 60% is uncertain.
The December 2005 report by Inmet and SLI evaluated both depth scenarios based on
large open stopes, mine extraction exceeding 80% according to the ITASCA work, and a
US$450 per ounce gold price and a US$1.10 per pound copper price. Both depth
scenarios generated positive cash flow (Inmet-SLI, 2005).
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In March 2006, Inmet evaluated the 4,770 m elevation scenario based on the above
metal prices, smaller stopes, and approximately a 60% to 65% mine extraction and found
that this option also generates a positive cash flow (Inmet, 2006).
RPA concludes that a significant amount of technical work has been carried out and
that there is a good opportunity to convert underground resources to reserves in the
future.
RECOMMENDATIONS
RPA recommends completing a feasibility study to convert part of the Troilus Mine
underground resources to reserves. A key to the successful operation will be
confirmation of the overall extraction rate.
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2 INTRODUCTION AND TERMS OF REFERENCE
Roscoe Postle Associates Inc. (RPA) was retained by Inmet Mining Corporation
(Inmet) to prepare an independent Technical Report on the December 31, 2005 Troilus
Mine Zone 87 underground Mineral Resource estimate. Inmet owns a 100% interest in
the Troilus Mine in northern Quebec. The Troilus Mine is an open pit operation that has
been producing gold, copper, and silver continuously since November 1996. This report
was written in accordance with the National Instrument 43-101F1 guidelines. This
Technical Report conforms to NI 43-101 Standards of Disclosure for Mineral Projects.
RPA is very familiar with the Troilus Mine open pit resource and reserve estimates.
Since August 2002, Roscoe Postle Associates Inc. (RPA) has been providing Inmet with
technical assistance related to the construction of new block models and new Mineral
Resource estimates for J4 and Z87. In addition to resource work carried out at our
Toronto office, Luke Evans, RPA Consulting Geological Engineer, worked with Inmet
personnel at the Troilus Mine from August 13 to 15, 2002, from September 25 to October
1, 2002, January 20 to 30, 2003, February 10 to 20, 2003, March 18 to March 21, 2003,
and March 24 to March 27, 2003.
RPA and Inmet co-authored a NI 43-101 technical report dated April 24, 2004, on the
January 1, 2004 Troilus Mine Mineral Resources and Reserves (Inmet-RPA, 2004). The
January 1, 2004 Mineral Reserve estimate incorporated pit expansions to the Zone 87
(Z87) and the Zone J4 (J4) pit designs that represented significant increases over previous
estimates.
This report presents the Troilus Mine Z87 underground (Troilus UG) Mineral
Resource estimate as of December 31, 2005. Luke Evans visited the site from July 5 to 6,
2005, to review the new underground drilling program results and drill hole spacing and
from October 4 to 6, 2005 to supervise and assist with the Troilus UG Mineral Resource
estimation work. RPA also met with Inmet personnel in November 2005 in Toronto to
finalize the resource estimate methodology and classification criteria.
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A significant amount of work was completed on the Troilus UG Project in 2005 by
the Inmet Troilus Division personnel and outside consulting firms. Stéphane Fréchette,
Troilus Mine Mining Engineer, is the project manager for the Troilus UG Project.
Bernard Boily, Inmet Troilus Division Senior Geologist, supervised the deep diamond
drilling program. Dr. Eric Lamontagne, Troilus Mine Chief Engineer and Mine
Superintendent, completed most of the geological interpretation and block model work
related to the underground resources.
In mid-December 2005, RPA prepared a draft report on the underground resource
estimate for Inmet (RPA, 2005). In late December 2005, SNC-Lavalin Inc. (SLI) worked
with Inmet to prepare a detailed integrated technical draft report that presented
underground development scenarios to two different elevations below the Z87 pit bottom
(Inmet-SLI, 2005). Inmet retained ITASCA Consulting Canada Inc. (ITASCA) to
prepare the geomechanics assessment. Dr. W.F. Bawden (of Bawden Engineering
Limited) was also retained, and proposed a more conservative approach to reduce the
mining method risk. Mine designs based on both geomechanic assessments were
evaluated by Inmet and they both generated positive cash flows (Inmet-SLI, 2005 and
Inmet, 2006).
The historical sample preparation and analytical procedures and quality control (QC)
and quality assurance (QA) protocols were compiled by Mr. Boily. He also prepared
sections in this report that describe the property and the geology and carried out most of
the drill hole database validation and verification work. Mr. Boily worked on a number
of the historical drilling programs, supervised the 2005 deep drilling program, has
published descriptions of the Troilus Mine geology, and is currently responsible for the
Troilus Mine grade control, property exploration, and claim renewals.
LIST OF ABBREVIATIONS Units of measurement used in this report conform to the SI (metric) system. All
currency in this report is US dollars (US$) unless otherwise noted.
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TABLE 2-1 LIST OF ABBREVIATIONS Inmet Mining Corporation - Troilus Mine, Québec
micron km2 square kilometre °C degree Celsius kPa kilopascal °F degree Fahrenheit kVA kilovolt-amperes
g microgram kW kilowatt A ampere kWh kilowatt-hour a annum L liter m3/h cubic metres per hour L/s litres per second cfm cubic metres per minute m metre bbl barrels M mega (million) Btu British thermal units m2 square metre C$ Canadian dollars m3 cubic metre cal calorie min minute cm centimeter MASL metres above sea level cm2 square centimeter mm millimetre d day mph miles per hour dia. diameter MVA megavolt-amperes dmt dry metric tonne MW megawatt dwt dead-weight ton MWh megawatt-hour ft foot m3/h cubic metres per hour ft/s foot per second opt, oz/st ounce per short ton ft2 square foot oz Troy ounce (31.1035g) ft3 cubic foot oz/dmt ounce per dry metric tonne g gram ppm part per million G giga (billion) psia pound per square inch absolute gal Imperial gallon psig pound per square inch gauge g/L gram per litre RL relative elevation g/t gram per tonne s second gpm Imperial gallons per minute st short ton gr/ft3 grain per cubic foot stpa short ton per year gr/m3 grain per cubic metre stpd short ton per day hr hour t metric tonne ha hectare tpa metric tonne per year hp horsepower tpd metric tonne per day in inch US$ United States dollar in2 square inch USg United States gallon J joule USgpm US gallon per minute k kilo (thousand) V volt kcal kilocalorie W watt kg kilogram wmt wet metric tonne km kilometre yd3 cubic yard km/h kilometre per hour yr year
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3 RELIANCE ON OTHER EXPERTS This report has been prepared by Roscoe Postle Associates Inc. (RPA) for Inmet
Mining Corporation. The information, conclusions, opinions, and estimates contained
herein are based on:
Information available to RPA at the time of preparation of this report,
Assumptions, conditions, and qualifications as set forth in this report, and
Data, reports, and other information supplied by Inmet Mining Corporation and other third party sources.
For the purpose of this report, RPA has relied on ownership information provided by
Inmet Mining Corporation. RPA has not researched property title or mineral rights for
the Troilus Mine and expresses no legal opinion as to the ownership status of the
property.
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4 PROPERTY DESCRIPTION AND LOCATION The property is located approximately 110 km by air north of Chibougamau, Quebec
(Figure 4-1). It is approximately centered on UTM coordinates 535,085E and
5,649,950N (UTM-18, NAD 83) or latitude 51°N and longitude 74°30' W.
The Troilus Mine property consists of 119 claims and one surveyed mining lease that
collectively cover 6,422 hectares (Figure 4-2 and Table 24-1 in Appendix 1). The
property straddles four map areas: Lac Montmort (NTS 32O/2), Lac Miskittenau (NTS
32O/1), Lac Troilus (NTS 32J/15) and Lac Bueil (NTS 32J/16). All the claims and the
mining lease are in good standing and 100% owned by Inmet.
The Troilus Mine operation is regulated by two levels of Authorization Certificates.
The first level is the Global Certificate that is required to address the environmental
impact of the overall project. This level is authorized by the Deputy Minister of the
Environment. The second level consists of many operational authorization certificates
that address the methods, different activities, and land use of the mine operation. These
certificates are issued by the Ministry of the Environment and are authorized by the
Regional Director.
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In 2002, the Troilus Mine submitted a modified Restoration Plan (mine closure) to the
Ministry of Natural Resources (MNR). This new plan contained new (lower) reclamation
costs that were developed using actual contractors’ quotes. The Troilus Mine has since
received formal approval. This plan was revised again in 2005 to reflect new information
developed in the interim on the method of tailings dam enlargements, the quality of local
hydrology, additional waste dumps needed, and the potential for acid generation.
According to the submitted Mine Restoration Plan, Inmet will be required to post a
bond of $2.25 million, equal to 70% of the reclamation cost related to surfaces affected
by waste and tailings. Inmet established the initial bond in 2000 according to the
regulation schedule.
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5 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHYACCESSIBILITY
The Troilus Mine is located approximately 175 km by road from the town of
Chibougamau, which has a population of approximately 8,500 (Figure 4-1). Air Creebec
provides regular flights from Montreal to Chibougamau. The mine is approximately a
two hour drive from the airport, which is approximately 15 km southwest from
Chibougamau. From Chibougamau, the most direct access is by driving 23 km east along
Highway 167, 108 km north along the Route du Nord, and 44 km northeast along the
mine road. All of these roads are well maintained year round.
CLIMATEClimate is characterized by short mild summers and long cold winters, with mean
temperatures ranging from –17°C in January to 16°C in July. Mean annual precipitation
ranges from 40 mm in February to 120 mm in September.
LOCAL RESOURCES The closest towns, Chibougamau-Chapais and Mistissini, supply most of the
workforce. Mine personnel work 12 hour shifts on either a 4 days in/3 days out schedule
or a 7 days in/7 days out schedule. There is a permanent camp with eating, sleeping, and
recreation facilities that can accommodate up to 450 workers during their stay at the site.
The mine operates continuously year round. Bus transportation is provided several times
each week between the mine site and Chibougamau and Mistissini.
Politically the province is very supportive of mining. The Québec government has
demonstrated a will to encourage the development of natural resources through
expeditious permitting, title security, and financial incentives.
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INFRASTRUCTURE The location of the Z87 and J4 pit limits, waste and ore stockpiles, tailings area, the
mill, office, and other buildings, as well as other significant features, are shown in Figure
5-1. There are sufficient surface rights under the current mining lease for the current mine
plan ore and waste stockpile requirements. The water and power supplies are adequate
for the current mine plan.
PHYSIOGRAPHY The property area is primarily covered by black spruce forests, swamps, and lakes.
The vertical relief in the area is moderate, with a mean altitude of 375 metres above sea
level. Overburden consists essentially of a thick layer (>10 m) of fluvio-glacial till.
Outcrops are sparse, and very large boulders sitting on surface are common.
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6 HISTORY PRIOR OWNERSHIP
Kerr Addison Mines Ltd. (Kerr Addison) staked two large blocks of claims in 1985
and 1987 that included the Troilus Mine area. In 1988, Minnova Inc. (Minnova) became
operator in a 50-50 joint-venture with Kerr Addison. In February 1993, Metall Mining
Corporation (Metall) acquired Minnova’s interest and, in May 1993, Metall purchased all
of Kerr Addison’s mining properties. On May 4, 1995, Metall changed its name to Inmet.
Inmet now owns a 100% interest in the Troilus Mine property.
EXPLORATION AND DEVELOPMENT HISTORY
Initial exploration in the area started in 1958, following the discovery of many erratic
blocks containing copper and nickel anomalies. Some occurrences of copper and zinc
were discovered between 1958 and 1967, including a massive sulphide deposit at Baie
Moléon discovered by Falconbridge Ltd. in 1961. Resources for this deposit were
calculated at 200,000 tonnes at a grade of 2.0% Cu, 4.25% Zn, 39.7 g/t Ag, and 1.0 g/t
Au.
In 1971, the Lessard deposit was discovered by Selco Mining Corp. near Lac
Domergue. Like Baie Moléon, it consists of massive sulphides totalling 1.46 million
tonnes grading 1.73% Cu, 2.96% Zn, 38.0 g/t Ag and 0.70 g/t Au. Following this
discovery, an electromagnetic (EM) and magnetic geophysical survey was carried out
over the Troilus and Frotet lake area; however, this survey did not lead to any new
significant discoveries.
The Baie Moléon and Lessard discoveries, located southwest of the Troilus deposit,
improved the geological understanding of the Frotet-Evans greenstone belt and opened
the area to further exploration for base metal deposits.
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In 1983, the results of a new airborne INPUT survey carried out over a large area of
the eastern portion of the Frotet-Evans belt were published by the Government of
Quebec. Some exploration work was done following this survey, but no important
discoveries were made.
Kerr Addison acquired a large block of claims in 1985, following a mapping program
by the Quebec Ministry of Natural Resources that indicated good potential for gold and
base metal mineralization. More geochemical, geophysical, and geological work was
carried out by Kerr Addison in 1985 and 1986. Drilling began in 1986 with 24 holes
totalling 3,590 m, which led to the discovery of Zone 86 (Z86).
In 1987, more claims were added to the property to the north of the Z86 drilling,
where the Troilus Mine is now located. A large gold float dispersion train was found by
prospecting and 26 diamond drill holes totalling 4,413 m were drilled. Hole KN-12,
collared immediately up-ice from a glacial float dispersion train, intersected significant
Au-Cu mineralization over great widths, which turned out to be part of Zone 87 (Z87),
named after the year of its discovery.
In 1988, 27 diamond drill holes totalling 6,567 m were drilled. Initial drill testing of a
nearby weak horizontal loop electromagnetic (HEM) anomaly intersected anomalous Au-
Cu mineralization in what was confirmed to be Zone J4 (J4) in 1991. The J4 name
originates from its location on the “J” exploration grid. On October 1, 1988, a 50-50
joint-venture was formed between Kerr Addison and Minnova. Minnova became
operator.
Between 1989 and 2005, fourteen drilling programs comprising 887 diamond drill
holes for a total of 159,538 m were carried out on the property. The drilling outlined five
main areas of gold mineralization (Z87/87S, Z87 Deep, J4, J5, and Southwest) and a
number of isolated gold intersections.
In 1991, a semi-permanent camp, which could accommodate 30 to 50 people, was set
up between Z87 and J4. During 1991, a bulk sample of approximately 200 tonnes
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6-3
averaging 2.3 g/t Au was taken from the centre of Z87 and approximately 100 tonnes
were treated at the pilot plant of the Centre de Recherche Minérale du Québec (CRM) in
Quebec City as part of a pre-feasibility study. The remaining 100 tonnes were treated at
the pilot plant of SGS Lakefield Research Limited (Lakefield) as part of the 1993
feasibility study.
In 1992, an orientation Induced Polarization Survey (IP) carried out over Z87 and J4
produced strong IP anomalies. The IP survey covered the entire property and was also
useful in a condemnation program in areas where the infrastructure and stockpiles were
planned.
Between December 1992 and March 1993, a drilling program comprising 181 holes
totalling 24,239 m was carried out to complete the feasibility study. The purpose of the
drilling was to define Z87 and J4 as well as to test other IP anomalies.
In February 1993, Metall acquired Minnova’s interest and, in May 1993, purchased
all of Kerr Addison’s mining property interests. In August 1993, a positive feasibility
study was completed based on a 10,000 tpd open pit operation. In September 1993,
Coopers and Lybrand from Toronto audited the feasibility study and found no significant
problems.
From August 1994 to April 1995, Mineral Resources Development Inc. (MRDI) from
San Mateo, California, reviewed the reserves of both the feasibility and post-feasibility
studies for financing purposes. Other kriging parameters were tested and a check assay
program was carried out on the 1992-1993 data set.
In May 1995, Metall changed its name to Inmet Mining Corporation (Inmet).
Financing of the project was completed in June 1995. Later on during the same year, the
refurbishing of the 44 km access road from the Route du Nord and a 137 km power line
and two substations were completed.
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The construction of the mill complex and all facilities was completed in the fall of
1996, and milling started in November 1996. In April 1997, after some fine tuning, the
mill capacity reached 10,000 tonnes per day.
In April 1998, Inmet approved a 15,000 tpd mill expansion feasibility by Met-Chem
Canada Inc. (Met-Chem). Modifications to the mill started in December 1998, and the
full 15,000 tpd capacity was reached in 1999.
In 2004, Inmet approved another mill expansion feasibility by Met-Chem to increase
mill capacity to 18,000 tpd. Modifications to the mill were completed in December 2004
and the full 18,000 tpd capacity was reached in 2005.
New sampling and assay protocols for the blastholes and future diamond drilling
campaigns were proposed by Francis Pitard in January 1999. As a result, significant
modifications to the Troilus assay laboratory were completed during the fall of 1999 and
it became fully operational in May 2000, after a six month implementation and
adjustment period.
The major historical milestones are summarized in Table 6-1.
HISTORICAL MINERAL RESOURCE AND MINERAL RESERVE ESTIMATES
Historical open pit Mineral Resource and Reserve estimates are summarized in RPA-
Inmet (2004). No historical underground Mineral Resource estimates have been
completed for the Troilus Mine.
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TABLE 6-1 MAJOR HISTORICAL MILESTONES Inmet Mining Corporation - Troilus Mine
Date Description of Major Milestones
1985 Kerr Addison stakes over 1,500 claims in the Troilus area.
1987 Kerr Addison stakes Troilus Mine area and discovers gold and copper.
1988 Minnova options 50% interest from Kerr Addison and becomes operator.
December 1991
Kilborn Inc. pre-feasibility study is negative (7,500 tpd).
February to May 1993
Metall Mining Corporation acquires 100% interest in Troilus.
August 1993 Kilborn-Met-Chem-Pellemon Feasibility Study is positive (10,000 tpd).
September 1994
Metallgesellschaft AG sells its entire 50.1% interest in Metall Mining Corporation through the public sale of its shares.
Late 1994 Construction commences.
May 4, 1995 Metall Mining Corporation changes its name to Inmet Mining Corporation
1995 44 km access road from Route du Nord and a 137 km power line and two substations are completed.
October 1996
Construction Completed
November 1996
Production Starts
April 1997 Mill achieves 10,000 tpd
April 1998 Met-Chem 15,000 tpd mill expansion Feasibility accepted
1999 Mill achieves 15,000 tpd
2002 Mill achieves 16,000 tpd
2004 Met-Chem 18,000 tpd mill expansion Feasibility accepted
2005 Mill achieves 18,000 tpd
PRODUCTION HISTORY
The mine started commercial production in October 1996 and has since operated
continuously. By the end of 2005, approximately 49.0 million tonnes of ore averaging
1.09 g/t Au and 0.119% Cu have been milled and 6.3 million tonnes of lower grade
mineralization have been stockpiled. A total of approximately 184.7 million tonnes have
been excavated, including 18.4 million tonnes of overburden and 110.8 million tonnes of
waste rock. The overall mill recovery to date averages 83.3% for gold and 89.5% for
copper. The Troilus Mine has produced over 1,390,000 ounces of gold and over 50,000
tonnes of copper to date. In 2003, the mine celebrated producing its millionth ounce of
gold. The production history is summarized in Table 6-2.
Rec
over
ed m
etal
afte
r mill
ing
and
smel
ter a
nd re
finin
g ad
just
men
ts.
TAB
LE 6
-2
TRO
ILU
S M
INE
PRO
DU
CTI
ON
HIS
TOR
Y In
met
Min
ing
Cor
pora
tion
- Tro
ilus
Min
e, Q
uébe
c
Des
crip
tion
1995
19
96
1997
19
98
1999
20
00
2001
20
02
2003
20
04
2005
Pr
ojec
tto
Dat
e O
verb
urde
n (t)
3,
448,
553
5,07
9,50
5 3,
234,
702
967,
134
1,94
9,46
455
1,58
762
,649
20
2,74
084
3038
1,70
2,41
9 34
7,40
718
,389
,198
Was
te R
ock
(t)
98
7,67
9 8,
839,
660
13,0
51,9
5312
,073
,491
14,3
69,5
7013
,441
,152
14
,912
,288
11,2
78,9
9010
,343
,972
11
,452
,027
110,
750,
784
Sto
ckpi
le (t
)
117,
965
865,
399
1,42
2,69
01,
144,
317
60,8
361,
080,
818
7,63
326
1490
468,
424
887,
572
6,31
7,14
4
Ore
Min
ed (t
)
629,
008
3,79
7,57
7 4,
175,
951
4,95
8,89
34,
913,
497
5,90
0,56
3 5,
942,
786
5,92
3,20
46,
044,
541
6,92
9,05
649
,215
,076
Tota
l E
xcav
ated
(t)
3,44
8,55
3 6,
814,
157
16,7
37,3
38
19,6
17,7
2820
,126
,165
19,8
95,4
9020
,485
,182
21
,065
,447
18,3
06,7
2218
,559
,356
19
,616
,062
184,
672,
203
Mill
Hea
d (g
/t A
u)
1.35
1.
44
1.34
1.26
0.90
1.10
1.
081.
030.
95
0.94
1.09
Mill
Hea
d (%
Cu)
0.
157
0.16
3 0.
138
0.12
50.
104
0.15
6 0.
132
0.10
80.
092
0.07
60.
119
Gol
d R
ecov
ery
80
.7
85.5
6 86
.43
85.6
482
.78
83.6
83
.05
83.0
180
.63
81.7
983
.32
Cop
per
Rec
over
y
81.4
89
.41
89.7
189
.81
89.8
791
.75
90.2
289
.42
86.7
8 89
.68
89.5
1
Au
(ozs
)*
12
,941
13
9,88
8 14
6,97
016
8,36
412
2,53
216
2,57
8 16
4,60
216
4,06
114
9,02
8 15
9,54
51,
390,
509
Cu
(t)*
47
1 5,
158
4,91
55,
416
4,78
67,
836
6,81
75,
791
4,81
4 4,
444
50,4
48
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7 GEOLOGICAL SETTING REGIONAL GEOLOGY
The Troilus gold-copper deposit lies within the eastern segment of the Frotet-Evans
Greenstone Belt, in the Opatica Subprovince of the Superior Province (Figure 7-1).
The Frotet-Evans Archean greenstone belt extends for more than 300 km between
James Bay and Mistassini Lake, and varies from a few kilometres up to 45 km in width.
The belt is divided into two similar volcano-sedimentary domains (west domain and east
domain). Half of the west domain consists of tholeiitic basalts, the remainder being felsic
pyroclastic rocks, gabbro intrusions, pyroxenites and peridotite. The east volcanic
domain is known as the Frotet-Troilus Domain.
LOCAL GEOLOGY
The eastern segment of the Frotet-Evans Archean greenstone belt (Frotet-Troilus
Domain) is underlain by a supracrustal sequence of submarine mafic volcanics with
intercalated cogenetic mafic intrusions (Figure 7-2). Felsic volcanic and pyroclastic
rocks and minor epiclastic sedimentary rocks, as well as ultramafic horizons, are also
found. These supracrustal rocks are intruded by granitoid plutons and dikes, which
probably range from pre-tectonic to post-tectonic in age.
The rocks are variably deformed and are affected by a strong regional foliation.
Subhorizontal mesoscopic to megascopic folds are common, affecting both regional
foliation and primary layering.
The metamorphic grade in the North Troilus area ranges from greenschist to lower
amphibolite facies, the higher grades appearing around the borders of certain intrusions
and towards the margins of the greenstone belt.
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The association of molybdenite, gold, and base metal mineralization with granitoid
plutons is striking. The three largest base metal volcanogenic massive sulphide (VMS)
occurrences are the Lessard deposit (1.46 Mt @ 1.73% Cu and 2.96% Zn), the Tortigny
deposit (0.53 Mt @ 3.59% Cu, 6.49% Zn, 85.2 g/t Ag, 0.43 g/t Au, and 0.27% Pb) and
the Clairy deposit (0.35Mt @ 7.84% Zn, 1.35% Cu, and 22.3 g/t Ag). The largest gold
occurrence is the Troilus deposit.
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PROPERTY GEOLOGY
The property geology is characterized by a sequence of intermediate to mafic flows
and breccias, locally with some felsic volcanics, cut by comagmatic gabbroic and
ultramafic sills (Figures 7-3 and 7-4). The drilling programs carried out in 1999 and
2000 on Z86, Z87, and J4, combined with data compilation of all previous work, indicate
that the Au mineralization is hosted in a multiphased gabbroic to dioritic intrusion, now
called the Troilus Diorite, as opposed to the previous interpretation of volcanic flows and
breccias. A compilation of airborne magnetic data indicates that the Troilus Diorite is an
elongate intrusion (five kilometres by one kilometre) whose long axis has a northeasterly
orientation. The mineralized zones of the Troilus deposit occur within the northeastern
part of the Troilus Diorite. Late porphyritic felsic intrusions are quite common along the
margin of the Troilus Diorite and are even more abundant at Z87 and J4.
A major granite-trondhjemite pluton (Parker Lake) is located northeast of the
mineralized zones, while a smaller granitic pluton (Parker Junior) occurs just southwest
of Z87.
Three main fracture orientations were observed in the deposit area. The first set,
oriented at 215° and dipping at 63°, is subparallel to the regional foliation and represents
the major fracture system in the pit area. The other two sets (035°/25° and 320°/85°) cut
the regional foliation almost at a right angle. The combined effect of these fractures has
induced local instability in the Z87 pit. Faulting is observed in several areas of the pit,
and the main attitudes are 240°/-55° and 160°/-60°. These two fault orientations do not
cause any overall wall stability concerns, but can create problems locally.
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Regional deformation has strongly flattened and stretched the geological assemblages
and the alteration pattern. In the pit area, the effects of this deformation can be observed
as follows: strongly elongated felsic dikes (all parallel to the regional foliation); heavy
stretching of the hydrothermal breccia; strongly "boudinaged" late mafic dikes and quartz
veins.
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8 DEPOSIT TYPES Both Z87 and J4 are hosted within the northeastern tip of the Troilus Diorite
intrusion, which encloses elongated zones of hydrothermal breccia and coeval feldspar-
and quartz-porphyritic dike and sill swarms (Figures 7-3 and 7-4). Breccia, porphyries,
and mineralization show a moderate (50-65°) northwesterly dip.
Z87 extends for approximately 1,300 m from 12,900N to 14,200N and is up to 400 m
wide from approximately 10,200E to 10,600E. Z87 has an elongated shape with its long
axis oriented N35°E or mine grid north. The north and south extensions are
“horsetailing” and form narrowing branches of ore. Two branches are well defined in the
north. Three branches are less well displayed to the south. The Z87 mineralization dip
generally increases progressively to the north from approximately –55°W in the south to
–65°W in the north. The mineralization rakes moderately to the north. The Z87
blasthole data and the deep diamond drilling intersections reveal a number of higher
grade ore shoots plunging to the west-northwest at -30° to –50°.
Compared to Z87, J4 is narrower, has a lower copper grade and more free gold, and
dips more steeply at –65°W. The J4 ore shoots appear to rake steeper to the north. J4
extends for 1,200 m from 14,100N to 15,300N and is generally less than 100 m wide. J4
is situated between 9,500E and 9,700E. The northern half of J4 starting at approximately
14,600N comprises one main corridor of mineralization, which is 20 m to 50 m in
horizontal thickness. The J4 Slash Pit excavated this corridor from approximately
14,625N to 15,010N from December 2002 to April 2003. The grade contoured blasthole
data reveal a system of tightly stacked lenses striking to the mine grid northeast and
dipping to the mine grid northwest. These are located within and extend beyond the
interpreted mineralized envelope limits. Three corridors of generally lower grade and
more diffused gold mineralization have been correlated in the southern half of the zone,
where the mineralization averages approximately 100 m in thickness and has some
intervening bands of waste.
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The central part of the mineralized zones coincides with an "in situ" hydrothermal
breccia which exhibits pseudofragments of diorite in a strongly foliated and biotite-
amphibole altered matrix. The brecciated texture of the rock comes from the
development of polygonal fracturing that channeled hydrothermal solutions. The white
coloured albitized pseudofragments in the breccia represent the less altered portion of the
rock.
The breccia is injected by porphyritic felsic dike swarms, a few mafic dikes, and
several deformed small chalcopyrite-bearing quartz veins. Polygonal fractures and
columnar jointing are abundant in the felsic dikes and are interpreted to have formed
during the cooling process. These fractures are also mineralized, bearing Au, thus
suggesting that the dikes and the mineralization are contemporaneous. One of the felsic
dikes yielded a radiometric age of 2786 ± 6 Ma, based on U-Pb dating of zircon. All
these observations suggest that the formation of the Troilus orebody is pre-metamorphic.
The main alteration facies defined during the course of core logging and geological
observations made in the pit include, from earliest to latest:
i) hornfels (very fine biotite);
ii) potassic (biotite - actinolite - K-feldspar);
iii) inner propylitic (actinolite - albite - epidote);
iv) outer propylitic (albite - epidote - calcite);
v) phyllic (sericite - quartz).
The formation of the hydrothermal breccias and the intrusion of the dike swarms are
contemporaneous. Both are deformed, and it is thought that the effects of tectonism must
have ceased during the formation of the potassic assemblage. Potassic, propylitic, and
phyllic alteration facies are spatially associated with ore.
Based on the above characteristics, the Troilus deposit appears to best fit a porphyry-
type deposit model. The geological similarities between Troilus and the porphyry-type
model are: the spatial association of the ore zones with mineralized felsic porphyry dike
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swarms, the hydrothermal breccias, the intense fracturing of the wall rocks, the typical
zoning in mineralization and alteration, the large tonnage and the widespread and
continuous Cu-Au mineralization. However, this interpretation is constantly evolving,
and a new study to better understand the deposit type and to identify the protolith of the
host rock is ongoing.
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9 MINERALIZATION Chalcopyrite and pyrrhotite, with subordinate pyrite, are the main sulphides
encountered in the central part of the deposit. The sulphides are most abundant in the
hydrothermal breccia matrix, along with biotite enrichment where up to 5% to 10%
sulphides can be present. The breccia pseudofragments are less enriched and, overall,
Z87 and J4 mineralization contains approximately 1% to 2% sulphides.
Preliminary studies made in the early 1990s on drill core samples from Z87 showed
that 89% of the gold occurs as free gold or electrum and as inclusions in the non-metallic
gangue material. Only 2% of the gold is associated with chalcopyrite, the remaining 9%
occurring within pyrite and/or pyrrhotite. The size of the gold grains ranges from one
micron up to 340 microns, with 47% being larger than 100 microns. A similar study has
not been carried out on J4 mineralization. Core logging has indicated that chalcopyrite is
much less abundant, and coarse gold is observed more frequently in J4 core than in Z87
core. Although coarse gold is present, it is rarely observed in diamond drill core or hand
specimens. The J4 and Z87 ore-waste contacts are not visually evident and are defined
based on assay data.
In general, it is thought that the original metalliferous fluids forced their way in the
diorite and percolated through the rock along hydrothermally formed cracks, which gives
the rock a brecciated appearance. Ongoing alteration and metamorphic remobilization
caused further digestion of the pseudofragments and infiltration of metal-rich fluids into
them. In the more altered core of the deposit, where metal enrichment is ubiquitous, the
pseudofragments are less evident and almost entirely altered. Towards the margins, the
pseudofragments are better preserved and mineralization is mostly restricted to the
matrix.
It is suggested that there has been at least two phases of mineralization. The first was
gold and copper rich and the second only gold rich. The two do not exactly overlay
(Figure 9-1). The copper envelope is offset towards the southeast with respect to the gold
envelope. A typical cross section from northwest to southeast would show:
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1. A gold-rich/copper-poor zone (hanging wall).
2. A wide gold/copper-rich mid region (core).
3. A copper-rich/gold-poor zone (footwall).
Within the central part of the deposit, at more or less the centre of the copper
envelope, there is an approximately 15 m wide zone of strong copper enrichment with
greater than 0.2% Cu. The copper envelope bulges to the southeast in the northeast part
of the deposit and some additional copper-rich lenses occur further into the footwall
outside of the pit walls.
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Outwards from this copper/gold-rich zone, chalcopyrite becomes subordinate and
pyrite, with lesser pyrrhotite, predominates, being particularly abundant over the
northwest portion of Z87. This zone overlaps the transition between the potassic and the
inner propylitic alteration facies. This area is often characterized by sodic, rather than
potassic, alteration.
Figures showing the Z87 diamond drill holes and mineralization on a number of
sections and plans are included in the resource section.
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10 EXPLORATION Exploration history of the property is directly linked to the history of the discovery
and development of the Troilus deposit previously discussed in this report.
A review of all the lithogeochemical data has indicated that a large halo with Au
values greater than 200 ppb occurs around Z87 and J4. Compilation of drill hole data for
holes drilled away from the Troilus deposit has shown that there are a number of holes
with Au values greater than 200 ppb over 10 m. Systematic drilling of all these zones
was undertaken between 1997 and 2004. No zones of economic mineralization having
both the size and grade of the Troilus deposit were found. However, a 500 m long
anomalous Au envelope, named the Southwest Zone, with similar characteristics to Z87
was discovered in 2000, at the southwest end of the Troilus Diorite. Several holes were
drilled in early 2005 using Ingersoll Rand DML downhole hammer drill rigs (DML) to
investigate the potential of having near surface ore material that could be mined and
trucked to the Troilus mill. The thick overburden prevented testing the zones’ full extent.
Additional diamond drill holes will be required.
In J4, Au grade contouring suggests that the mineralization is thickening down plunge
and that there is a good potential for finding higher grade Au mineralization below a 200
m vertical depth. In 1999 and 2000, drilling confirmed that the Au mineralization
extended down plunge, where hole TN-26 intersected a 24 m wide gold-enriched zone
averaging 4.95 g/t Au and including a higher grade section that assayed 34.7 g/t Au over
3.0 m.
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11 DRILLING Almost all holes were drilled perpendicular to the stratigraphy to the southeast or
mine grid east and have dips varying from 45° to 90°. The drilling started in 1986 and
was conducted in several programs, involving different drilling contractors (Table 11-1).
TABLE 11-1 SUMMARY OF HISTORICAL DRILLING PROGRAMS Inmet Mining Corporation - Troilus Mine, Québec
Year Drill Contractor Core size 1986-1989 Morissette Diamond Drilling BQ
1990 Morissete Diamond Drilling Benoit Diamond Drilling Chibougamau Diamond Drilling
NQ
1991-1993 Benoit Diamond Drilling Chibougamau Diamond Drilling
NQ
1995 Benoit Diamond Drilling Morissette Diamond Drilling
NQ ("KN-" holes) BQ ("TN-" holes)
1997 Chibougamau Diamond Drilling BQ ("TN-" holes) NQ ("KN-" holes)
1999 Forages Mercier NQ
2000 Chibougamau Diamond Drilling NQ (on Z87 and J4) BQ (elsewhere on the property)
2002 Chibougamau Diamond Drilling NQ
2003 Forages Rouillier NQ
2004 Forages Rouillier NQ
2005 Forages Rouillier NQ
In the earlier programs, AQ and BQ size core was used. NQ coring started in the
early 90s (Table 11-1). From 1986 to 1996, all casings were left in the ground. From
1997 to 1999, all casings from "KN-" holes drilled during that period and located in the
immediate Z87 and/or J4 area were removed, while the other "KN-" holes and all "TN-"
holes had their casings left in place. Between 2000 and 2005, all casings for "KN-" holes
were removed after completion and those for holes starting with "TN-" were left in the
ground.
From 1986 to 1997, the core was split and half of the core was laid out in wood boxes
that were tagged with Dymo tape. The drill core for holes drilled up to 1996 is stored
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outside in core racks at the Opemiska Mine site in the town of Chapais and the more
recent core (post-1997) is stored in racks at the Troilus Mine site. Some holes were
moved from Chapais to Troilus. Core racks are made of steel or wood and steel. There is
no roofing to cover the racks and there is no fencing around the core racks. Since the
introduction of the new sampling and assay protocol in 1999, whole core has been sent
for assay and a 10 cm to 20 cm length of core has been retained.
The older holes (pre-1990) were converted to the metric system and verified by Inmet
prior to inserting them into the database. All holes have had some sort of survey test
taken downhole. From 1986 to 2002, acid dip tests and Tropari instruments were used
systematically. In 2003, a Reflex Multishot digital survey started to be used. All holes
drilled in the vicinity of the Troilus deposit were surveyed using the mine grid coordinate
system. For holes outside of the mine area, cut line grid coordinates were converted to
the mine grid system. Elevation for these holes was taken from topographic maps.
All drill holes drilled were used for geological interpretation. Drill holes on Z87 and
J4 are generally on cross sections at 50 m spacing, with some in-fill holes on intermediate
sections spaced 25 m apart.
Core logging was done for major and minor lithologies, alteration type, and
mineralization. Sample lengths in the earlier programs (pre-1990) were not constant and
depended on mineralization and geology (dikes, contacts, etc.). In the subsequent
programs, it was found that the mineralization was very diffuse throughout the geological
units and thus systematic one-metre long samples were taken, regardless of the geology.
Rock Quality Designation (RQD) measurements were systematically taken during the
1991 drilling campaign. In the following drill programs, RQD was done only on few
holes selected on each section drilled. In 2005, RQD measurements were again
systematically taken. Core recovery was excellent and averaged over 95%.
Lithogeochemical sampling was carried out at random throughout the different drilling
campaigns.
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A number of geologists have logged the Troilus core. Over the years, the lithological
names evolved, generally, from volcanic origins to more intrusive origins. The Troilus
geology department has assembled a diamond drill core reference suite of the main
lithological units and alteration products on the property to standardize the more recent
nomenclature.
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12 SAMPLING METHOD AND APPROACH During the older drilling campaigns (pre-1990), core sample intervals were selected
based on visible mineralization and geological contacts. Thus, sample lengths were
constantly varying. After 1990, one-metre samples were taken systematically in the
mineralized zones, regardless of the geology. Also, resampling of the pre-1990 holes was
carried out to fill in gaps in the sampling and to bring the assay sections as close as
possible to one metre. In 1999, a new sampling and metallic sieve based assay protocol
was introduced. This protocol included increasing the sample length to 3.0 m and applied
to all samples situated within mineralized zones. The sample length for samples located
outside of the mineralized zones was set at 2.0 m, and these samples used a sampling
protocol that involved fire assaying a 30 g subsample. Since 1999, most of the Z87
diamond drill core samples were 3.0 m in length and most of the J4 samples were 2.5 m
in length. For the 2002 J4 drilling, the mine laboratory adjusted the protocol to a 2.5 m
length. Then in 2004, all sample lengths were reduced to 2.0 m lengths. This modified
protocol is still in use today.
Before 1999, drill core samples were split into two parts with a hydraulic splitter: one
part for the assay and the other put back in the core boxes for future reference,
metallurgical work, or additional check assaying. Since the mineralization consisted
essentially of disseminated pyrite and given that there was not a good correlation between
pyrite abundance and gold grade, it was impossible to visually estimate gold grades.
Consequently, either split half was representative of the sample and no bias could be
introduced by selecting one half instead of the other.
In 1999, following the studies and recommendations by Mr. Francis Pitard, a
consultant who specializes in gold sampling procedures, a new sampling protocol was
applied to all subsequent drilling programs. It recommended taking three-metre lengths
of whole core instead of one-metre lengths of split core. Again, this was done
systematically, without considering geological contacts or dikes. Mr. Pitard strongly
suggested that this sampling procedure would be more appropriate than the previous
method used for the type of mineralization at Troilus and should significantly reduce the
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sampling error. Assay data compilation from the 2004 and 2005 diamond drilling
programs shows that reducing the sampling length to 2.0 m did not increase the sampling
error significantly.
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13 SAMPLE PREPARATION, ANALYSES AND SECURITYSAMPLE PREPARATION AND ANALYTICAL PROTOCOLS
Since 1986, several laboratories and different assay techniques have been used at
Troilus. The same sample preparation was used in the core shack prior to shipping the
samples to the laboratories. All core samples were put in plastic bags, which were sealed
with a plastic strap and stored in a corner of the core shack. Each sample number was
written on the outside of the bag and a tag inserted in the bag. When sufficient samples
were accumulated, a shipment was made to the assay laboratory by truck.
During the first drilling programs (1986 to 1991), several labs, including Swastika
Laboratories (Swastika), were used for assaying the core samples. Bondar-Clegg and
Chimitec used a half assay-ton (AT) fire assay technique with Direct Coupling Plasma
(DCP) finish. Following an extensive assaying comparison program in 1992 between
several laboratories using different techniques, Swastika in Ontario was retained to do
most of the analyses from 1992 to 1997, when the Troilus laboratory became operational.
It was determined that the one AT ton fire assay with gravimetric finish technique used
by Swastika was more accurate for assaying gold than the half AT method used at the
other laboratories. Consequently, from 1992 to 1999, all samples were assayed for gold
by one AT fire assay with a gravimetric or atomic absorption (AA) finish depending on
the size of the "dore bead". If the bead was visually judged too small to be weighed, then
the bead was dissolved and an AA finish was used. Copper and silver were analyzed by
AA spectrometry.
Prior to assaying, the original one-metre split core sample, weighing approximately
2.7 kg, was entirely crushed down to 0.25". Then, 350 g were pulverized to –150 mesh
(105 microns) and a one AT (29.17g) fire assay was done. The rest of the sample (pulp
and reject) was stored for future use.
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In 1999, along with the new sampling method, a new assay protocol was introduced,
based again on the recommendations from Mr. Francis Pitard. The new assay protocol
involved assaying a much larger sample than that used for the standard fire assay in the
previous programs (1,000 g versus 30 g). This protocol was designed to reduce the
Fundamental Error (i.e., error generated by sample and subsample weights), the Grouping
and Segregation Error (i.e., error generated by gold segregation and the way samples and
subsamples are split), the Extraction Error (i.e., error generated by poor sample recovery),
and the Preparation Error (i.e., error generated by excessive loss of fines). The "Pitard"
Troilus diamond drill core protocol is summarized below:
1) Crush the entire 3 m NQ core sample (14 kg) down to 16 mesh (0.04").
2) Split a 1 kg sample using a rotary divider.
3) Pulverize the entire 1 kg sample for no longer than 90 seconds to minimize
smearing.
4) Screen the entire 1 kg sample using a 150 mesh screen.
5) Perform one AT fire assay on the entire +150 mesh fraction, which may need
more than one fire assay.
6) Perform two one AT fire assays on the –150 mesh fraction.
7) The final assay value is the weighted average of the results from both fractions.
Starting in 2004, the “Pitard” protocol for diamond drill core was adjusted to 2.0 m
core length (10 kg). The rest of the procedure remains the same.
It is Inmet and RPA’s opinion that all of the assays that support the Underground
Project Mineral Resource estimate are based on sample preparation and analytical
protocols that meet or exceed standard industry practice. The mine laboratory is
equipped with modern state-of-the-art equipment and staffed with highly qualified
personnel. Established assay laboratories (Swastika, Chimitec, Bondar-Clegg, Lakefield,
and others) were used for the earlier drill programs.
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QUALITY CONTROL AND QUALITY ASSURANCE
Quality control (QC) and quality assurance (QA) for the Troilus deposit has always
been a high priority for Inmet and its predecessors. Several labs and assay methods were
used in the course of the different drilling programs, and a number of reassay and check-
assay programs were carried out over the years. Also, several studies on the
heterogeneity and/or nugget effect of gold were carried out and are listed in the Sources
of Information.
Prior to 1999, during the assaying process, every laboratory did a systematic check
assay every 10 to 15 samples. Also, all samples assaying more than 1.0 g/t Au were
reassayed from a second pulp and all those assaying greater than 2.0 g/t Au were
analyzed a second time from the rejects. All assay laboratories routinely inserted in-
house reference materials and certified standards.
Starting in 1993, Inmet decided to insert in-house reference materials, CANMET
Certified Standards, and blanks in each shipment to the assay laboratories. Since 1993,
over 20 different in-house reference materials and Certified Standards have been used by
Inmet. All these control samples are first pulverized and bagged (35 g) and then inserted
at random after every 50 samples using the same sequential numbers as the core samples.
After approximately every 10 control samples, a CANMET Certified Standard or a
"blank" is inserted instead of the in-house control sample.
Following the introduction of a new sampling and assay protocol in 1999 (Pitard
Protocol), modifications were made to Troilus quality control procedures. In addition to
the insertion of reference material and/or Certified Standards, approximately 10% of all
the samples assayed were randomly selected and their rejects sent back to the laboratory
to be reassayed using the same assay protocol (duplicates).
Results from quality control programs (reference samples, standards, reassays, and
duplicate assays) are used to qualify reliable assay data. There is no data on the standards
used by the laboratories prior to 1993 and/or the results of their quality control.
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However, no major problems were reported in the assays from the drilling programs and
differences between the original values and the second assays and/or duplicates were
judged very acceptable. In a report dated March 1994, the Coopers & Lybrand
Consulting Group compiled the different studies on the accuracy and precision of the
assays carried out by Inmet and concluded that the relative accuracy for the Au grade at
Troilus is ±15%. After 1994, a number of tests and studies on the heterogeneity of Au at
Troilus were carried out for Inmet by various consulting firms. Francis Pitard reviewed
this work and concluded that a target of ±15% variance in the Au assay results is
achievable and that a sampling protocol modification was required to reduce sampling
error to this level.
A recent internal Inmet report (Boily, 2005), based on external check assays and the
mine laboratory gold reference standards, concluded that the Troilus laboratory assays are
not biased.
In late 1998 and early 1999, some 1,427 metres of core from the mineralized zones
from 12 holes were resampled and assayed in two separate programs. Laboratories used
for the assaying included SGS Lakefield Research Ltd. and the Centre de Recherche
Minérale (CRM). This program was designed to compare the newly introduced 1,000 g
screen metallic sampling and assays (Pitard Protocol) with the historical 30 g sampling
assay protocol. From this program, Inmet concluded that the relative difference between
the two data sets was less than 2% and that there was no overall bias between the two
protocols. It was concluded that the 1,000 g screen metallic protocol reduced the
sampling error and, therefore, provided a much better estimate of the gold contained in
any given sample and improved the ability to estimate grades locally. This protocol was
adopted as the sampling protocol going forward.
In 1997, external check assays at Swastika and Chimitec indicated that the Troilus
laboratory was underestimating gold values by approximately 10% to 15%. The
Swastika and Chimitec assays were within 5%. The 1997 drilling program targeted Z87
close to the ultimate pit limits but has had no significant influence on the underground
resource estimate.
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Inmet is of the opinion that the check assay data do not reveal any major biases in the
historical Troilus drilling program gold assays that could have a significant negative
effect on the Troilus UG Mineral Resource grade estimates.
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14 DATA VERIFICATION In 2003, Inmet and RPA personnel worked together to validate and verify the original
Z87 Gemcom diamond drill hole database which was used to estimate the January 2003
open pit Z87 Mineral Resources and Mineral Reserves.
Inmet and RPA personnel also worked together to validate and verify the Z87 UG
Gemcom diamond drill hole database. The Troilus UG database has 15,999 assay
records, including 2,106 records related to the more recent 31 drill holes. In RPA’s
opinion, the Troilus UG drill hole database is valid and suitable for supporting resource
estimation work.
UNDERGROUND PROJECT DATABASE VALIDATION
Inmet and RPA used a number of queries in MS Access, the Gemcom data validation
routine, and 3D visual inspection to validate the drill hole database header, survey, and
assay tables. A number of minor data entry problems in the survey and assay tables were
identified and corrected.
The lithology table data has not been validated. The rock code nomenclature needs to
be standardized and overlapping primary and secondary rock codes in the lithology table
should be rectified in the future. RPA believes that the current state of the lithology table
will not have a material impact on the Mineral Resource estimates.
UNDERGROUND PROJECT DATABASE VERIFICATION
Mr. Bernard Boily, Inmet Senior Mine Geologist, verified all of the Troilus UG drill
hole database header and survey records, and most of the assay records (Boily, 2005).
No significant data entry problems were found. All of the assay results are provided by
the mine laboratory in digital format. The downhole survey results are also generated
directly in digital format. RPA checked the resource assays in four of the new holes
(KN-653, KN-661, KN-666, and KN-673) and found no errors.
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15 ADJACENT PROPERTIES A number of other companies have held properties that tie on to the former Troilus
Mine property in the late 1980s and early 1990s. Since 2003, Inmet is not the sole holder
of mining claims in the area. Beaufield Resources has acquired by staking a large
number of claims adjacent to Inmet’s ground. No significant mineralized zones are
known to exist within approximately five kilometres from the Troilus Mine property.
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16 MINERAL PROCESSING AND METALLURGICAL TESTING
The mill was originally designed to treat gold, copper, and silver at a rate of 10,000
tpd using a flowsheet consisting of a gravimetric, flotation, and cyanidation circuit.
Copper concentrate and doré bars are produced on site. The Troilus mill was
commissioned in 1996, with commercial production achieved in April 1997 at a rate of
10,000 tpd, with recoveries of 86% Au and 90% Cu and a concentrate grade of 18% Cu.
At the end of 1998, the plant reached production of 10,850 tpd with similar metallurgical
results.
At the beginning of 1998, a decision was made to increase mill capacity to 15,000 tpd
using a coarser grind. A crushing and screening plant was constructed and became
operational in early 1999. The objective was to reduce the critical size material in the
feed down to less than two inches. The cyanidation portion of the flowsheet was dropped
in 1999, since it was found to be uneconomic. Removing the cyanidation circuit
decreased the gold recovery by 2%, while coarser grind was responsible for roughly a 1%
to 1.5% decrease. Since 1999, the plant has been operational with gold recoveries in the
82.5% to 84% range.
At the end of 2001, after replacement of the pebble crusher and ball mill pump and
the successful implementation of instrumentation upgrade and flowsheet changes, the
plant reached its target tonnage capacity. Similarly, steps were undertaken in 2000 to
improve copper metallurgy, particularly concentrate grade. A column cell was
commissioned and modifications were carried out to the copper cleaner and thickening
circuit. These changes led to improvements in the concentrate grade by 3% and recovery
improvements of 1% to 2% Cu. More importantly, this permitted the mill to operate
more efficiently in a wider range of copper feed grades.
Plant recoveries in 2005 were approximately 82% for gold and 90% for copper
(Figure 16-1 and Table 16-1). In 2004, the plant reached a new milestone of 18,000 tpd.
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FIGURE 16-1 HISTORICAL GOLD AND COPPER MILL RECOVERIES
Mill recovery
80
82
84
86
88
90
92
1997 1998 1999 2000 2001 2002 2003 2004 2005
Rec
over
y
Gold Copper
TABLE 16-1 2005 METALLURGY SUMMARY Inmet Mining Corporation - Troilus Mine, Québec
Assays Distribution Material Weight %
%Cu g/t Au %Cu %Au
Mill Feed 100 0.07 0.98 100 100
Concentrate 0.40 17.33 128.76 89.68 54.43
Gravity 27.36
Final Tails 99.60 0.008 0.17 10.32 18.21
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CRUSHING
The run-of-mine ore is hauled by 150 t trucks and dumped directly to a 54 in. x 74 in.
gyratory AC crusher. Prior to crushing, large blocks are broken by a rock hammer in the
crusher chamber to less than 1.2 m. The product from the crusher at 100 percent -200
mm is temporarily accumulated in a pocket, which is fed to a conveyor through an apron
feeder. The dust generated in the crushing area is controlled by three dust collectors.
Crushed material is conveyed to a dual deck vibrating screen to remove the +2 in. and –7
in. size fraction for secondary crushing. Pre-crusher discharge is then returned to the
screen oversize and undersize fractions and conveyed to the coarse ore stockpile.
GRINDING
The reclaim circuit is supplied by three variable speed belt feeders located under the
stockpile. The disposition of the belt feeders minimizes the segregation effect on the
stockpile by feeding the conveyor of the semi-autogenous grinding (SAG) mill with a
relatively stable ratio of fine particles.
The SAG mill (30 ft. x 13 ft.) is driven by a 7000 HP fixed speed synchronous motor,
which is operational in a bi-directional mode. The mill is lined with chrome-
molybdenum steel and operates with a high-high profile.
The mill is typically operated with a 20% to 25% volume using a steel charge of 10%
to 12% 5.25 in. grinding balls. Grate discharge at 2.5 in. overflows on a dual deck
vibrating screen. The +12 mm screen oversize is recycled to the pebble crusher by
conveyor. Pebble crusher discharge is added to the SAG mill feed conveyor. The –12
mm screen undersize is pumped to the ball mill circuit. This operation is carried out to
relieve the mill of critical sized material.
The primary ball mill (18 ft. x 28.5 ft.) driven by a 6000 HP synchronous motor is in
closed circuit (450% C.L.) with a cluster of 26 in. cyclones. The primary cyclone
overflow feed the secondary ball mill circuit. This ball mill (16 ft. by 22 ft.) driven by a
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4300 HP synchronous motor is in closed circuit (250% C.L.) with a cluster of 15 in.
cyclones. The product (80% passing 90 microns) feed the flotation circuit.
GRAVITY CONCENTRATION
The gravimetric circuit is fed with 15% bleed of primary ball mill circulating load to a
gravimetric circuit consisting of four 30 in. Knelson concentrators. Screen feed to the
Knelsons at 2,000 microns is supplied on three hour cycles. The concentrate from the
Knelsons is accumulated in a storage tank to be later fed to a magnetic separator and
further upgraded on a Gemini table. Middlings from the Gemini table are fed in a 12 in.
closed circuit Knelson. Gold concentrates are produced at 40% to 70% gold and refined
in an induction furnace. The gravimetric circuit has generally recovered 24% to 32%
gold.
FLOTATION
The overflow from the secondary cyclones goes to rougher column flotation before
supplying two parallel banks of 43 m³ flotation cells (GL&V). Each bank has seven cells
in a 2+2+3 arrangement. The seven cells are operated as a bulk sulphide flotation. The
collection is done in an alkaline (pH 10.0) circuit.
The floating sulphides containing gold and copper from the flash flotation cell, the
rougher column flotation, and the rougher/scavenger cells are further liberated in a
regrind mill (10.5 ft. x 12 ft.). This 600 HP regrind mill is in closed circuit with a cluster
of 10 in. cyclones. Cleaner circuit feed is typically 89% passing 40 microns. A Falcon
concentrator is fed by one cyclone underflow to recover the fine free gold before feeding
the cleaning circuit. Cleaning circuit pH is maintained at 10.5 to 11 to depress pyrite.
The cleaning circuit is comprised of four stages. The first and second stages have
five cells of 2.8 m³, the third stage has four cells of 1.4 m³, and the fourth stage is a
column flotation. Concentrate from the column is typically 22% and is shipped as final
concentrate.
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ON-STREAM ANALYZER
At the beginning of 1998, an on-stream analyzer (Courier 30 AP) was purchased in
order to improve the flotation control and copper concentrate grade. Six streams are
analyzed for process control. Better control has permitted an increase of 1%-2% in
concentrate grade.
FILTERING
The copper concentrate is filtered by a pressure filter. The filter is a 25 m² Larox that
produces a concentrate with less than 8% humidity. It is stored in a 400-tonne capacity
bunker and shipped to Chibougamau by truck and further to the Horne Smelter by rail.
Production is typically 2,500 tonnes per month.
TAILINGS DISPOSAL
The pond is constructed with a 2.5 km till starter dike. Winter discharge is done
linearly with a single high spot. Beaches are produced in the summer by spigotting along
the dike and are further raised with a granular material on a yearly basis, with follow-up
spigotting.
A water treatment plant has been functional since the end of 1998, after initial
operation revealed suspended solid control problems. It uses a new technology
(ACTIFLO) based on polymer addition and agitation followed by high speed sand
assisted lamellar decantation and reduces suspended solids to concentrations below 15
ppm, the monthly average regulation limit.
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17 MINERAL RESOURCE ESTIMATE In 2002 and 2003, RPA assisted Inmet with the construction of constrained block
models for the J4 and Z87 open pits based on new geological interpretations and
mineralization wireframes that used approximately a 0.3 g/t Au cut-off grade.
Wireframes for a number of subparallel zones were made for each deposit (RPA, 2002
and 2003). New wireframes based on approximately a 0.8 g/t Au cut-off grade were
created in 2005 to model the Troilus underground (UG) mineralization.
RPA visited the Troilus Mine in July and October 2005 to supervise and assist with
the Troilus UG Mineral Resource estimation work. RPA also met with Inmet personnel
in November 2005 in Toronto to finalize the resource estimate methodology and
classification criteria. In RPA’s opinion, the Troilus UG Mineral Resource estimate
discussed below is reasonable and acceptable.
DIAMOND DRILL HOLE DATABASE
Inmet combined the relevant historical deep drilling information with the recent deep
drilling results to create a new smaller diamond drill hole database specifically for the
Troilus UG Project. The Troilus UG drill hole database comprises 101 diamond drill
holes totaling 48,387 m, of which 31 diamond drill holes totaling 29,626 m have been
drilled since January 2003. The Z87 UG diamond drill hole database contains 15,999
assay records, 964 downhole survey records, 117 composite control intervals, and 1,149
composites in 101 diamond drill holes (Table 17-1). The drill hole intersections are
spaced approximately 50 m to 100 m apart.
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TABLE 17-1 UNDERGROUND GEMCOM DATABASE Inmet Mining Corporation - Troilus Mine, Québec
Description Number of Records
Diamond Drill Holes 101
Total Length (m) 48,387
Downhole Surveys 964
Assays 15,999
Composite Control Intervals 117
3 m Composites 1,149
RQD (Holes KN-572 to 653) 5,330
WIREFRAME MODELS
A 0.8 g/t Au grade envelope has been used to define mineralization and to construct
3D wireframe models for Z87. RPA found that the 0.8 g/t Au cut-off grade preserved
mineralization continuity and ensured the inclusion of all potentially economic
mineralization.
The Z87 open pit model has wireframes for 13 lenses, compared to only three lenses
in the Z87 UG model. A number of narrower or more isolated lenses exist, but those
were considered to be too small to warrant modelling at the moment. A minimum 10 m
horizontal width criterion was loosely applied.
Inmet constructed 3D wireframe models using 3D wobbly polylines that were
snapped on to the drill hole intervals on 25 m spaced sections. The polylines were joined
together using tie lines. At model extremities, polylines were extrapolated for
approximately 12.5 m beyond the last drill hole sections. All wireframes were validated.
The Z87 wireframes were constructed using 35 sections spaced 25 m apart and
extending 875 m from 13,225N to 14,100N. The wireframes extend from approximately
the 5,200 m elevation to the 4,700 m elevation. Surface is at approximately the 5,370 m
elevation. The mineralization is open at depth and along strike.
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The three lenses modelled are, from east to west, Lens 19, Lens 20, and Lens 21.
Lens 20 represents most of the mineralization. The mineralization wireframes are shown
on cross sections and plans in Figures 25-1 to 25-10 in Appendix 2.
COMPOSITE CONTROL INTERVAL STATISTICS
A total of 117 drill hole intersections in 101 diamond drill holes were used to define
three lenses that collectively form the Z87 UG mineralization wireframe (Table 17-2).
These composite control intervals are summarized in Table 17-2, and details for each drill
hole intersection are provided in Table 26-1 in Appendix 3.
TABLE 17-2 COMPOSITE CONTROL SUMMARY Inmet Mining Corporation - Troilus Mine, Québec
Description Lens 19 Lens 20 Lens 21
Composite Control Intervals 10 92 15
Average Gold Grade (g/t Au) 1.44 1.66 1.60
Average Cut Gold Grade (g/t Au) 1.43 1.57 1.50
Average Copper Grade (%) 0.10 0.18 0.16
Average Silver Grade (g/t Au) 1.55 2.10 2.80
Average Horizontal Thickness (m) 20 37 23
A set of vertical longitudinal sections looking mine grid west that show contoured cut
gold grades, horizontal thicknesses, and cut gold grade times horizontal thicknesses (GT)
for Lens 20 are provided in Figures 26-1 to 26-3 in Appendix 3.
The main corridor of mineralization is Lens 20, which has horizontal thicknesses
ranging from 7 m to 83 m and averaging 37 m. Lens 20 also has the highest average gold
and copper grades. Lens 20 has higher gold grade intersections, most above 1.5 g/t Au,
from approximately 13,350N to 13,850N, and generally lower gold grade intersections
are encountered along the strike extensions further to the north and south.
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ASSAY STATISTICS
The Z87 UG drill hole database contains 15,999 assays, including 1,955 that were
assigned mineralization rock code identifiers and 14,044 that were assigned as waste rock
(Table 17-3). The resource assays are defined as the assays located within the three Z87
mineralization wireframes that were used for the block model (lenses 19, 20, and 21).
The lens codes were used for correlation and modelling purposes. Lens 19 represents a
local splay or finger off the main Lens 20 footwall. Lens codes increase from east to
west and from footwall to hangingwall.
TABLE 17-3 ASSAY STATISTICS Inmet Mining Corporation - Troilus Mine, Québec
RockCode
Count Length (m)
Au(g/t)
Cut Au (g/t)
Cu(%)
Ag(g/t)
MinimumNorthing
(m)
MaximumNorthing
(m)
Mineralization Assays in Mineral Resources
19 91 1.88 1.39 1.38 0.11 1.71 13,448 13,835
20 1,700 1.71 1.70 1.60 0.18 2.06 13,224 14,176
21 164 1.56 1.87 1.66 0.18 2.93 13,915 14,101
Total 1,955 1.71 1.70 1.60 0.18 2.12 13,224 14,176
Waste Assays
0 14,044 1.66 0.29 0.28 0.03 0.85 13,155 14,184
The resource assays average 1.71 m in length, 1.70 g/t Au uncut, 1.60 g/t Au cut,
0.18% Cu, and 2.12 g/t Ag and extend from 13,224N to 14,176N. The grades in Table
17-3 are not length weighted and are slightly higher than the length weighted average
grades in Table 17-2.
Statistics for all of the waste rock assays, defined as the assays situated outside of the
three mineralization wireframe models, were compiled. The waste rock assays include a
number of high-grade isolated assays. The 14,044 waste rock assays average 1.66 m in
length, 0.28 g/t Au, 0.03% Cu, and 0.85 g/t Ag.
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The length and grade descriptive statistics for the Z87 UG resource assays are
summarized in Table 17-4.
TABLE 17-4 RESOURCE ASSAY LENGTH AND GRADE STATISTICS
Inmet Mining Corporation - Troilus Mine, Québec
Description Length (m) Au (g/t) Cut Au (g/t) Cu (%) Ag (g/t)
Mean 1.71 1.70 1.60 0.18 2.12
Standard Error 0.02 0.06 0.04 0.01 0.15
Median 2.00 1.14 1.14 0.12 1.46
Mode 2.00 1.10 10.00 0.04 0.80
Standard Deviation 0.68 2.63 1.60 0.28 6.84
Sample Variance 0.46 6.91 2.55 0.08 46.84
Coefficient of Variation 0.40 1.55 1.00 1.57 3.23
Kurtosis -0.72 183.95 10.15 662.27 1054.52
Skewness 0.27 10.97 2.83 20.39 29.58
Range 2.80 54.99 9.97 9.58 259.90
Minimum 0.20 0.03 0.03 0.00 0.00
Maximum 3.00 55.02 10.00 9.58 259.90
Count 1,955 1,955 1,955 1,955 1,955
Confidence Level (95.0%) 0.03 0.12 0.07 0.01 0.30
The Z87 resource assay length distribution is compiled in Table 17-5. Approximately
48% of the samples have two-metre lengths, 34% have one-metre lengths, 12% have
three-metre lengths, 4% have lengths between 0.2 m and 0.97 m, and 3% have lengths
between 1.07 m and 1.7 m.
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TABLE 17-5 RESOURCE ASSAY LENGTH DISTRIBUTION Inmet Mining Corporation - Troilus Mine, Québec
Sample length (m) Count Percent of Total
Less than 1m 70 4%
Equal to 1 m 660 34%
Greater than1 m and less than 2 m 53 3%
Equal to 2 m 946 48%
Greater than 2 m and less than 3 m 0 0%
Equal to 3 m 226 12%
Total 1,955 100%
COMPOSITE STATISTICS
The assays situated within the mineralization wireframe models were composited to
3.0 m lengths starting at the first mineralization wireframe boundary from the collar and
resetting at each new wireframe boundary. RPA did not exclude the shorter and,
generally, lower grade composites generated adjacent to the wireframes.
The Z87 composites average 2.90 m in length. Approximately 6% of the composites
have lengths that are less than 3.0 m, including 1% with lengths that are less than one
metre. The Z87 composite statistics are shown in Table 17-6.
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TABLE 17-6 3 M COMPOSITE LENGTH AND GRADE STATISTICS Inmet Mining Corporation - Troilus Mine, Québec
Description Length (m) Au (g/t) Cut Au (g/t) Cu (%)
Mean 2.90 1.65 1.56 0.17
Standard Error 0.01 0.06 0.04 0.00
Median 3.00 1.25 1.25 0.13
Mode 3.00 0.46 0.46 0.13
Standard Deviation 0.43 1.87 1.19 0.16
Sample Variance 0.18 3.49 1.41 0.03
Coefficient of Variation 0.15 1.13 0.76 0.92
Kurtosis 19.16 135.90 10.75 19.37
Skewness -4.42 9.17 2.53 3.11
Range 3.00 36.36 10.00 1.98
Minimum 0.00 0.00 0.00 0.00
Maximum 3.00 36.36 10.00 1.98
Count 1,149 1,149 1,149 1,149
Confidence Level (95.0%) 0.02 0.11 0.07 0.01
CUTTING LEVELS
All high underground resource assays were cut to 10 g/t Au before compositing to
three-metre lengths. Troilus also uses a 10 g/t Au cutting level for high blasthole assays.
A 6 g/t Au cutting level has been used for high open pit resource assays; however, RPA
and Inmet have recognized that the 6 g/t Au cutting level was conservative for higher
grade areas such as the Z87 pit bottom (Inmet and RPA, 2003). In RPA’s opinion, the 10
g/t Au cutting level is reasonable and acceptable for the high underground resource
assays. RPA recommends reviewing the gold cutting levels periodically, when new data
become available.
The underground resource assay histogram and log probability plots are provided in
Figures 17-1 and 17-2, respectively.
Figure 17-1 Resource Assay Histogram
0
50
100
150
200
250
300
350
400
450
500
0 2 4 6 8 10 12 14 16 18 20
g/t Au
Freq
uenc
y
N=1,955
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17-81
Figure 17-2 Troilus Underground Resource Assays Cumlative Frequency % Log Probability Plot
0.1 1 10 100Gold Grade (g/t)
N=1,955
99.999
99.99599.99
99.9599.9099.80
99.50
99.00
98.00
95.00
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.0015.00
10.00
5.00
2.00
1.00
0.50
0.200.100.05
0.01
% ofvalues< g/t
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Cutting high assays to 10 g/t Au decreases the average Z87 resource assay grades by
approximately six percent. A 6 g/t Au cutting level would reduce the resource assay
average grade by approximately ten percent and a 20 g/t Au cutting level would reduce
the resource assay average grade by approximately three percent. The Indicated Mineral
Resource cut gold grade is approximately four percent and seven percent lower than the
uncut gold grade based on cutting high assays to 10 g/t Au and 6 g/t Au, respectively.
RPA concludes that the Z87 resource assays are relatively insensitive to cutting high
assays.
The 10 g/t Au cutting level represents the 99th percentile and affects one percent of
the resource assays. This cutting level is approximately six times the uncut resource
assay average grade.
RPA also examined the amount of gold metal contained in each percentile in the top
decile of the resource assays on a cut and uncut basis (Table 17-7).
TABLE 17-7 RESOURCE ASSAY DECILE ANALYSIS Inmet Mining Corporation - Troilus Mine, Québec
Percent of Total Gold Metal in Percentile
Percentile Au g/t Uncut Cut to 10 g/t Au 0.9 3.16 1.9% 1.9%
0.91 3.33 1.8% 1.8% 0.92 3.64 2.3% 2.3% 0.93 3.94 2.2% 2.2% 0.94 4.27 2.3% 2.3% 0.95 4.63 2.7% 2.7% 0.96 4.96 3.3% 3.3% 0.97 5.91 3.2% 3.2% 0.98 7.06 3.5% 3.5% 0.99 10.05 11.5% 6.2%
Total Gold Metal in Top Decile 34.8% 29.5%
Cutting the high resource assays to 10 g/t Au reduces the contained gold metal in the
top decile from 35% to 30%. As a general rule, the top decile should not contain more
than approximately 40% of the contained metal and the top percentile should not contain
more than approximately 10%.
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Preliminary reconciliation work by Inmet between the new Z87 UG block model and
the higher grade mineralization on benches 5110, 5120, and 5130 supports the 10 g/t Au
cutting level.
TREND ANALYSIS
RPA used the wireframe models to confirm that the overall strike direction is mine
grid 180° and that most of the mineralization dips at approximately -56° to mine grid
west with the exception of the southern part of Lens 20, which dips at approximately -48°
to mine grid west.
In order to help guide the variography work, RPA investigated for possible higher
grade mineralization plunge directions by contouring the diamond drill hole composite
control interval data on longitudinal projections for lenses 19, 20, and 21. There are
insufficient data to define plunge directions for lenses 19 and 21; however, both have
limited strike continuity relative to down dip continuity.
The central portion of Lens 20 represents higher grade mineralization (“Central High
Grade”) that has a strike length of approximately 300 m to 400 m and rakes at
approximately -45° to mine grid north. The Central High Grade mineralization is
bounded to the north and south by lower grade mineralization, mostly material averaging
less than 1.5 g/t Au. The Central High Grade hosts a very high grade shoot of >2 g/t Au
mineralization which is located mostly in the open pit and rakes at approximately -35° to
mine grid south. Additional very high grade shoots are less well defined and may rake
moderately to the south and/or north and/or subvertically to the north. The lower grade
Lens 20 mineralization to the north (“North Lower Grade”) includes several low grade
drill hole intersections that are related to poorly mineralized felsic dikes cutting across the
upper half of Lens 20 between approximately 13,750N and 13,850N.
The blasthole gold assays were contoured on a number of benches and cross sections
(Figures 17-3 and 17-4). Preliminary gold grade contours on benches confirm that the
overall mineralization strike is to mine grid 180°. Most of the higher grade pods also
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17-12
strike at mine grid 180°; however, some appear to be affected by cross-structures striking
southwest. These same cross-structures appear to create local bulges and splays of
mineralization and may also be responsible for some of the isolated pods of
mineralization further in the footwall and hangingwall. Similar observations can be made
from the gold grade contours on sections. The cross-structures appear to dip moderately
to the mine grid northwest. RPA believes that most of the local fluctuations and
jaggedness along the mineralization wireframe boundaries are related to cross-fault and
dike effects and are not due to downhole drill hole deviation issues.
Inmet Mining Corporation
Troilus Mine Underground Project
Figure 17-3 5,110 m Bench
Blasthole Gold Contours
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55 University Avenue, Suite 501
Toronto, Ontario M5J 2H7 (April 2006)
Ultimate Pit
Inferred LimitIndicated Limit
Zone 21
Zone 19Zone 20
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-25 0 25 50 75 100
1010
0E
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13500 N 13500 N
13550 N 13550 N
13600 N 13600 N
13650 N 13650 N
13700 N 13700 N
13750 N 13750 N
13800 N 13800 N
13850 N 13850 N
13900 N 13900 N
Cut Au Assay HistogramCut Au 3 m CompositesCut Au Intersection Averages
0.000 0.3000.300 0.8000.800 1.0001.000 1.5001.500 2.0002.000 3.000
g/t Au
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Inmet Mining Corporation
Troilus Mine Underground Project
Figure 17-4 Cross Section 13,600N
Blasthole Gold Contours
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Ultimate Pit
Inferred LimitIndicated Limit
Zone 21
Zone 19Zone 20
0. 2
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-25 0 25 50 75 100
1200
E1 2
00E
1250
E1 2
50E
1300
E1 3
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50E
5100 N 5100 N
5150 N 5150 N
5200 N 5200 N
5250 N 5250 N
5300 N 5300 N
5350 N 5350 N
5400 N 5400 N
5450 N 5450 N
5500 N 5500 N
Cut Au Assay HistogramCut Au 3 m CompositesCut Au Intersection Averages
0.000 0.3000.300 0.8000.800 1.0001.000 1.5001.500 2.0002.000 3.000
g/t Au
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VARIOGRAPHY
Lens 20 is by far the biggest underground lens at Z87 and contains 87% of the
resource assays. RPA constructed a number of directional variograms for Lens 20 using
the three-metre cut gold assay composites and the blasthole data that comprise both five-
metre and ten-metre sample lengths with high assays cut to 10 g/t Au.
The initial variograms created from the three-metre cut gold assay composites
generally had jagged sawtooth patterns and mostly displayed short-range variances that
were higher than the overall variance or sill. These features were mostly eliminated by
using a 6 g/t Au upper cut-off grade for all of the three-metre composite variograms.
Based on the geology, RPA expected to find longer down dip ranges than along strike;
however, the variography work suggests that these ranges are similar. RPA believes that
the three-metre variography ranges presented here represent the global ranges for all of
Lens 20 and that the Central High Grade has longer ranges of continuity than the global
ranges discussed below. On the other hand, the North Lower Grade area may have
shorter ranges of continuity than the global ranges.
Based on all of the three-metre composites, the downhole variogram defines a relative
nugget effect of approximately 29% and a 14 m range, which also corresponds
approximately to the across strike range (Appendix 4, Figure 27-1). Continuity ranges
are approximately 80 m for the along strike variogram based both on all of the three-
metre composites (Appendix 4, Figure 27-2) and on only the Lens 20 three-metre
composites (Appendix 4 Figure 27-3). Continuity ranges are approximately 90 m for the
Lens 20 down dip variogram (Appendix 4, Figure 27-4). A smooth down dip variogram
could not be created using all of the three-metre composites.
RPA found that the blasthole assay data generated excellent variograms. This is
likely because most of the blasthole data are situated within the Lens 20 Central High
Grade area. Continuity ranges are approximately 125 m for the along strike variogram
(Appendix 4, Figure 27-5) and at least 80 m for the down dip variogram (Appendix 4,
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Figure 27-6). The down dip range may be limited by the vertical extent of the blasthole
data used. The number of pairs begins to decrease at the 80 m interval.
RPA also built a series of variograms to test for shallow to steep rakes to the north
and south and found that the longest ranges were directly down dip.
The variography suggests that Indicated Mineral Resource classification criteria for
the underground mineralization could be based on along strike search radii of
approximately 80 m, down dip search radii of approximately 80 m, and across strike
search radii of approximately 15 m. RPA recommends periodic review of the
variography and classification criteria as new data become available.
SEARCH STRATEGY AND GRADE INTERPOLATION PARAMETERS
A search ellipsoid based on a minimum of two and a maximum of twelve composites
was used to interpolate gold, cut gold, and copper grades into blocks using a two-pass
process. The first pass used a search ellipsoid with an 80 m radius along strike, an 80 m
radius down dip, and a 15 m radius across strike. The second pass used a search ellipsoid
with a 120 m radius along strike, a 120 m radius down dip, and a 30 m radius across
strike. A 360° mine grid azimuth was used for the along strike search direction, and a
search dip of -56° was used for Lens 19, Lens 21, and most of Lens 20. A search dip of -
48° was used for the part of Lens 20 located south of 13,435N.
A lens identifier was assigned to each composite, and composite target restrictions
applied were such that the composites for one lens could not be used to interpolate grades
for another lens.
Inverse distance squared was used to interpolate gold, cut gold, and copper values.
Ordinary kriging criteria have not been developed for Z87 and may warrant consideration
in the future.
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TONNAGE FACTORS
Inmet uses a density testing apparatus comprising an OHAUS digital balance in an
enclosed cabinet supported above a large plastic container full of water (Figure 17-5).
The density testing apparatus was checked using two solid steel cylinders and the
precision was found to be greater than ±0.1%. Inmet also sent some samples and the two
steel cylinders to an independent laboratory as an additional check.
FIGURE 17-5 DENSITY TESTWORK APPARATUS, BALANCE AND STEEL TEST SAMPLES
Inmet carried out density testwork on 2,721 core samples in the 30 most recent deep
drill holes (KN-648 to KN-677). The core samples tested were generally whole core
pieces ranging in length from approximately 10 cm to 20 cm. Samples were weighed in
air and in water by mine personnel, and the density results were adjusted to account for
water temperature. The 496 resource related samples range from 2.57 g/cm³ to 3.42
g/cm³ and average 2.86 g/cm³. The same average is obtained when the lowest ten and
highest ten density measurements are excluded. In RPA’s opinion, Inmet has generated a
significant amount of reliable density data and a 2.86 tonnes/m³ tonnage factor is
reasonable and acceptable for the Troilus Z87 underground mineralization. The 2,225
waste density measurements average 2.83 g/cm³.
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TROILUS UNDERGROUND BLOCK MODEL
Gemcom Resource Evaluation Edition Version 4.02 was used to construct a new
block model for the Z87 underground project. The information for each block in the
model includes:
Interpolated Au, cut Au, and Cu grades related to blocks that contain at least 1% mineralization.
The percentage of the mineralization wireframe model that is in each block.
The mineralization density.
Indicated and Inferred identifiers for mineralization blocks.
The distance to the closest composite used to interpolate block mineralization grades.
Additional 20 levels were introduced into the open pit block model to create the
underground block model, which has 1,008,000 blocks. The blocks are 10 m by 10 m by
10 m in size, and the model has 90 columns, 160 rows, and 70 levels. The Z87
underground model origin is at 9,800E, 12,800N, and the 5,400 m elevation. The block
model rock codes are listed in Table 17-8.
TABLE 17-8 BLOCK MODEL ROCK CODES Inmet Mining Corporation - Troilus Mine, Québec
Description Rock Code
Lens 20 South of 13,435N 1
Lens 20 North of 13,435N 2
Lens 19 19
Lens 21 21
Waste Rock 90
Overburden 99
Air 95
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BLOCK MODEL VALIDATION
RPA used three methods to validate its block model Mineral Resource estimate:
1. Visual inspection and comparison of block grades with composite and assay grades.
2. Statistical comparison of resource assay and block grade distributions.
3. Inspection of resource assay and block grade scatter plots by elevations and northings.
RPA compared the block grades with the composite grades on sections and plans and
found good overall visual correlation with some minor low and high grade smearing and
banding problems due to local changes in strike and dip. As more data become available
in the future from closer spaced underground definition drilling, it may be possible to
refine the model by adding more customized search orientations related to smaller
structural domains.
The resource assays, composite control intervals, and three-metre composites, all cut
to 10 g/t Au, average 1.60 g/t Au, 1.56 g/t Au, and 1.56 g/t Au, respectively. The
resource assay average is slightly higher because the assays are not length weighted. The
Indicated block model cut grade at a zero cut-off grade averages 1.48 g/t Au. The
Inferred block model cut grade at a zero cut-off grade averages 1.18 g/t Au, and the
global block model cut grade at a zero cut-off grade averages 1.41 g/t Au. RPA believes
that the decrease between the assay and global block model grade is mostly due to a
significant number of lower grade blocks that are associated with the lower grade
mineralization situated along the north and south flanks and at depth. Most of the lower
grade mineralization is located in the Inferred classification block.
RPA notes that the drill hole data is fairly evenly spaced and that significant higher
grade data clustering is not evident. The Indicated resource cut grade, however, is
slightly lower than the resource assays, mostly because of minor data clustering. The
declustered resource cut assays average 1.49 g/t Au.
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RPA examined the distribution of gold and copper resource assays and block grades
on scatter plots by elevations and by northings and found no problems with the block
model grades.
The underground cut gold grade block models for lenses 19, 20, and 21 and the
ultimate pit design are shown in 3D perspectives looking down to the east in Figure 17-6.
FIGURE 17-6 UNDERGROUND CUT GOLD GRADE BLOCK MODELS
See Appendix 2 Figures for Gold Grade Colour Legend
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In conclusion, RPA considers that the Troilus underground block model is valid,
reasonable, and appropriate for supporting the Mineral Resource estimate.
MINERAL RESOURCE CLASSIFICATION CRITERIA
The definitions for resource categories used in this report are consistent with those
defined in CIM (2000 and 2004) and adopted by NI 43-101. In the CIM classification, a
Mineral Resource is defined as “a concentration or occurrence of natural, solid, inorganic
or fossilized organic material in or on the Earth’s crust in such form and quantity and of
such grade or quality that it has reasonable prospects for economic extraction”.
Resources are classified into Measured, Indicated, and Inferred categories. A Mineral
Reserve is defined as the “economically mineable part of a Measured or Indicated
Mineral Resource demonstrated by at least a Preliminary Feasibility Study”. Mineral
Reserves are classified into Proven and Probable categories.
RPA developed new Mineral Resource classification criteria for the Troilus
underground mineralization based on trend analysis work, variography studies, and
geological continuity. Overall, the Z87 mineralization exhibits good gold grade and
thickness continuity along strike and down dip.
RPA constructed wireframe solids to define continuous areas of Indicated and
Inferred Mineral Resources. The Indicated wireframe extends from the ultimate pit
bottom down to the 4,770 m elevation and from approximately 13,300N to 14,050N, and
includes two “rabbit ears” along the south and north pit walls. In RPA’s opinion, there is
sufficient drilling within the Indicated wireframe to classify all of the mineralization
situated within it as Indicated. The Inferred wireframe extends the resources beyond the
Indicated wireframe by approximately 100 m along strike to the north and to the south
and by 70 m vertically, down to the 4,700 m elevation. In addition, only blocks that have
interpolated grades were classified as Indicated or Inferred. Consequently, many of the
blocks located in the Inferred wireframe were excluded entirely from the resource
estimate (Figure 17-7).
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FIGURE 17-7 UNDERGROUND CLASSIFICATION BLOCK MODEL
This resource classification methodology is different from that introduced by RPA
previously for the Troilus open pit resources, which was based on classifying all blocks
interpolated during the first pass as Indicated and during the second pass as Inferred. The
blocks within the Indicated wireframe that were not interpolated during the first pass are
scattered and isolated, and many occur as small clusters of blocks along the
mineralization wireframe boundaries due to local changes in strike and dip. Over 96.4%
of the total Indicated tonnage was interpolated during the first pass. All of the
interpolated blocks in the Inferred wireframe were classified as Inferred, even though
approximately 40.6% of the tonnage in these blocks was interpolated during the first pass.
CUT-OFF GRADE
On December 8, 2005, the gold price was US$514/oz (C$596/oz) and the US
exchange rate was 1.16 Canadian dollars for each US dollar. Inmet has assumed a
US$450/oz (C$540/oz) gold price, a 1.20 US exchange rate, an 86% mill recovery, an
operating cost in the $13/t to $14/t range, and a copper credit equivalent to approximately
0.1 g/t Au to estimate a breakeven cut-off grade of approximately 0.80 g/t Au. The
mineralization wireframes were built based on the 0.8 g/t Au breakeven cut-off grade,
and the resources are reported at a zero cut-off grade because the proposed underground
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bulk mining method does not permit selective mining of individual blocks.
Approximately 7.0% of the Indicated Mineral Resource tonnage is internal waste related
to blocks with grades less than 0.8 g/t Au.
RPA has confirmed that a 0.8 g/t Au cut-off grade has been consistently applied to
build the mineralization wireframes. In RPA’s opinion, the 0.8 g/t Au cut-off grade is
reasonable and acceptable for constructing the mineralization wireframes and is
consistent with the above stated assumptions. RPA believes that the mineralization
wireframe volumes are sensitive to changes in the cut-off grade and recommends
adjusting the mineralization wireframes if the cut-off grade changes significantly.
MINERAL RESOURCE ESTIMATE
The Z87 underground Mineral Resource estimate as of December 2005 is
summarized in Table 17-9.
TABLE 17-9 Z87 UNDERGROUND MINERAL RESOURCE ESTIMATE – DECEMBER 2005
Inmet Mining Corporation - Troilus Mine, Québec
Category Tonnes Au (g/t) Cu (%)
Measured Mineral Resource - - -
Indicated Mineral Resource 29,400,000 1.48 0.16 Total Measured and Indicated Mineral Resource 29,400,000 1.48 0.16 Total Inferred Mineral Resource 7,900,000 1.18 0.14
Mineral Resource Estimation Notes: Mineral Resources reported at a zero cut-off grade. High gold assays cut to 10 g/t Au. Mineralized wireframe models constructed based on approximately a 0.8 g/t Au cut-off grade. Blocks are 10 m by 10 m by 10 m. A 2.86 tonnes/m³ tonnage factor used. Inverse distance squared grade interpolation for gold and copper using 80 m by 80 m by 15 m primary search radii and 120 m by 120 m by 30 m secondary search radii. Gemcom Software International Inc. Resource Edition Version 4.02 was used.
The Z87 underground Mineral Resources are based on a US450/oz gold price. The
Z87 underground Indicated Mineral Resources total 29.4 million tonnes at an average
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grade of 1.48 g/t Au and 0.16% Cu. There are also 7.9 million tonnes of Inferred Mineral
Resources averaging 1.18 g/t Au and 0.14% Cu. Inmet assumes that a 25 m thick crown
pillar will be recovered, and, therefore, no deduction has been made for the crown pillar.
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18 OTHER RELEVANT DATA AND INFORMATION
There are no other relevant data and information related to the Troilus Mine Zone 87
underground Mineral Resources. There are currently no underground Mineral Reserves
at the Troilus Mine.
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19 INTERPRETATION AND CONCLUSIONS A significant underground Mineral Resource exists under the Troilus Mine Z87 open
pit. The mineralization gold grade and thicknesses are very continuous and the
mineralization is still open along strike and at depth.
There are currently no Mineral Reserves estimated for the Troilus UG Project. In late
December 2005, SNC-Lavalin Inc. (SLI) worked with Inmet to prepare a detailed
integrated technical draft report that presented underground development scenarios to two
different elevations (4,910 m and 4,770 m) below the Z87 pit bottom at the 5,060 m
elevation (Inmet-SLI, 2005).
The risk of failure in the underground excavations increases with the extraction ratios.
Inmet retained ITASCA Consulting Canada Inc. (ITASCA) to prepare the geomechanics
assessment. Dr. W.F. Bawden (of Bawden Engineering Limited) was also retained, and
proposed a more conservative approach to reduce the mining method risk. Both
geomechanic studies agree that the risk is limited at lower mine extraction rates of
approximately 60%, however, Bawden (2005) states that the feasibility of achieving
extraction rates above 60% is uncertain.
The December 2005 report by Inmet and SLI evaluated both depth scenarios based on
large open stopes, mine extraction exceeding 80% according to the ITASCA work, and a
US$450 per ounce gold price and a US$1.10 per pound copper price. Both depth
scenarios generated positive cash flow (Inmet-SLI, 2005).
In March 2006, Inmet evaluated the 4,770 m elevation scenario based on the above
metal prices, smaller stopes, and approximately a 60% to 65% mine extraction and found
that this option also generates a positive cash flow (Inmet, 2006).
RPA concludes that a significant amount of technical work has been carried out and
that there is a good opportunity to convert underground resources to reserves in the
future.
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20 RECOMMENDATIONS RPA recommends completing a feasibility study to convert part of the Troilus Mine
underground resources to reserves. A key to the successful operation will be
confirmation of the overall extraction rate.
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21 REFERENCES RELATED TO GEOLOGY, MINERALIZATION, AND DEPOSIT TYPE
Boily, B., 1995, The Lac Troilus Cu-Au Deposit, in Metallogenic evolution and geology of the Chibougamau area – from porphyry Cu-Au-Mo to mesothermal lode gold deposit, Geological Survey of Canada, Open File 3143, Precambrian '95 field trip guidebook, pp 123-130.
Boily, B., 1998, Le Gisement Cu-Au Troilus, in Géologie et métallogénie du district minier de Chapais-Chibougamau, nouvelle vision du potentiel de découverte, Ministère des Ressources naturelles, Québec, DV 98-03, pp 137-146.
Boily, B., 1998, Porphyry-type mineralization in the Frotet-Evans Greenstone Belt – The Troilus Cu-Au Deposit, in Field trip guide book, Post-meeting field trip B3: Metallogeny of the Chibougamau District: Geological Evolution and Development of Distinct Mineralized Systems through Time, for "Quebec 1998", GAC/MAC/APGGQ, 1998.
Carles, P., 2000, Constraint on the Genesis of the Archaean Troilus Gold-Copper Deposit, Quebec, Master degree thesis, Department of Earth and Planetary Sciences, McGill University, Montreal, December 2000.
Carson, D.J.T., 1990, Mineralogy and predictive metallurgy of the Frotet Lake deposit, Noranda Exploration Company Limited, report submitted to Minnova Inc., Dated May 4, 1990.
Chryssoulis, S.L., 1990, Technical Report on the 'Invisible' gold content of sulphide minerals from the Frotet Lake prospect, Quebec; Process Mineralogy, University of Western Ontario, Report submitted to D. Carson, Noranda Exploration Company Limited, 1990.
CRM, 1991, Étude de la dispersion de la minéralisation de la proptriété Frotet-Troilus, par Jean-François Wilhelmy, Centre de Recherche Minérale, projet 90LP107, rapport final, submitted to Minnova Inc., dated April 3, 1991.
Fraser, R.J., 1993, The Lac Troilus gold-copper deposit, Northwestern Quebec: A possible archean porphyry system, Economic Geology, 88: pp 1685-1699.
Gosselin, C., 1990, Géologie de la partie NE de la région de Frotet-Troilus, Ministère de l'Énergie et des Ressources du Québec, DV 90-40, pp 65-67.
Gosselin, C., 1996, Synthèse géologique de la région de Frotet-Troilus, Ministère des Ressources naturelles, Québec, ET 96-02.
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
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Gosselin, C., 1998, Synthèse géologique de la région de Frotet-Troilus, Géologie et métallogénie du district minier de Chapais-Chibougamau, nouvelle vision du potentiel de découverte, Ministère des Ressources naturelles, Québec, DV 98-03, pp 63-70.
Lowel, J.D. and Guilbert, J.M., 1970, Lateral and vertical alteration – mineralization zoning in porphyry ore deposits, Economic Geology, 65: pp 373-408.
McMillan, W.J. and Panteleyev, 1987, A. Porphyry copper deposits, in Ore deposit models, Geoscience Canada Reprint Series, Edited by R.G. Roberts and P.A. Sheahan, vol. 3, pp45-58.
Pilote P. et al., 1997, Géochronologie des minéralisations d'affiliation magmatique de l'Abitibi, secteur Chibougamau et de Troilus-Frotet: implications géotechniques, Ministère des Ressources naturelles, Québec, DV 95-04, p 14.
Pitard, F.F., 1999, Study of the heterogeneity of gold in the Troilus mine J4 ore, Francis Pitard Sampling Consultants, report submitted to Inmet Mining Corp., Dated February 5, 1999.
Morin, R. et al., 1999, Potentiel minéral du district minier de Chibougamau, Ministère des Ressources naturelles, Québec, PRO 99-02.
Riverin, G., 1997, Étude de la granulométrie de l'Or dans les échantillons de Troilus, Internal Memorandum, Inmet Mining Corporation, Dated March 20, 1997.
Simard, A., 1987, Stratigraphie et volcanisme dans la partie orientale de la bande volcano-sédimentaire archéenne Frotet-Evans, Ministère de l'Énergie et des Ressources du Québec, MB 87-17.
Sutherland Brown, A., 1976, Morphology and classification, Canadian Institute of Mining and Metallurgy, Special Volume 15, pp 44-51.
RELATED TO MINERAL RESOURCE AND MINERAL RESERVE ESTIMATES
Bawden Engineering Limited, 2005, Draft Letter on the Mining Plan for Troilus Underground Feasibility Dated December 11, 2005.
Bawden Engineering Limited, 2005, Troilus Mine Geomechanical Underground Feasibility Study, Report Dated July 7, 2005.
Behre Dolbear & Company Limited, 2000, Technical Due Diligence of the Troilus Division for Macquarie Inc., March 17, 2000.
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
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Boily, B., 2005, Dilution – Projet souterrain, Inmet Mining Corp., Internal Memorandum, dated November 14, 2005
Boily, B., 2005, Densité de la zone minéralisée - Projet souterrain, Inmet Mining Corp., Internal Memorandum, dated November 14, 2005.
CIM, 2004, CIM Definition Standards on Mineral Resources and Mineral Reserves, Prepared by CIM Standing Committee on Reserve Definitions, Adopted by CIM Council, November 14, 2004.
CIM, 2000, CIM Standards on Mineral Resources and Reserves – Definitions and Guidelines, CIM Bulletin Vol. 93, No. 1044, October 2000.
CIM, 1996, CIM Mineral Resource/ReserveClassification: Categories, Definitions and Guidelines, CIM Bulletin September 1996.
Fiset, P., 1998, Proposition de Mise a Jour des Plans Miniers. Projet Troilus. Internal Inmet Report Dated July 7, 1998, Green Three Ring Binder.
Fiset, P., 1998, Optimisation de Fosse J4, Sensibilite de la fosse J4 finale a une dilution de 11% constante Internal Inmet Memorandum Dated July 23, 1998.
Fiset, P., 1998, Optimisation de Fosse Finale, Analyse de Sensibilite, Internal Inmet Memorandum Dated June 4, 1998.
Gaudreault, P., 2003, Rapport Densité de la Pierre (Minerai, Stérile) Fosse 87 et J4, Méthode: Gravité Spécifique, Internal Inmet Report Dated March 10, 2003.
Geostat, 1998, Update of Troilus Long Term Resource Model, Geostat Systems International Inc. Report Submitted to Inmet Mining Corporation Dated March, 1998.
Geostat, 1997, Geostatistical Analysis of Troilus BH Data, Geostat Systems International Inc. Report Submitted to Inmet Mining Corporation Dated December 3, 1997.
Geostat, 1997, Geostatistical Analysis of Troilus BH Data, Geostat Systems International Inc. Report Submitted to Inmet Mining Corporation Dated April, 1997.
Geostat, 1996, Preliminary Analysis of BH Data from Troilus Pit, Geostat Systems International Inc. Report Submitted to Inmet Mining Corporation Dated February 10, 1996.
Geostat, 1995, Update of Resource/Reserve Model for 87/87S Deposit of the Troilus Project, Geostat Systems International Inc. Report Submitted to Inmet Mining Corporation Dated June, 1995.
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
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Geostat, 1991, Analysis and Review of Estimated Reserves for the Troilus-Frotet Deposit, Geostat Systems International Inc. Report Submitted to Minnova Inc. Dated February 21, 1991.
Golder Associés Ltée, 2003, Considerations Regarding Dike Raising of the Tailings Area in Excess of 392.5m, Troilus Division, Letter Report Dated March 4, 2003 by Édouard Masengo and Michel Lemieux.
Inmet Mining Corporation and Roscoe Postle Associates Inc., 2003, Technical Report on the Mineral Resource and Mineral Reserve Estimates at the Troilus Mine, Québec, NI-43-101 Report Filed on SEDAR, Prepared by Inmet Mining Corporation and Roscoe Postle Associates Inc., Dated April 24, 2003.
Inmet Mining Corporation and SNC Lavalin Inc., 2005, Underground Mining Project Technical Report – (Scenario Comparison), Draft Report Dated December, 2005.
Inmet Mining Corporation, 2006, Underground Mining Project Technical Report – (Review Scenario 4770), Draft Report Dated March 2006.
ITASCA Consulting Canada Inc., 2006, Geomechanics Assessment With 3DEC Numerical Analyses of Underground Stoping Options at theTroilus Division, January 2006.
Kilborn, 1993, Etude de Faisabilite Projet Troilus Exploitation d’un Gisement Aurifere a Ciel Ouvert, Kilborn-Met-Chem-Pellemon Feasibility Study Dated August 1993.
Laberge, J., 2003, Données pour la dilution, Inmet Internal Memorandum Dated March 10, 2003.
Lamontagne, É., 2003, Pit Slopes – Troilus Mine, Troilus Division Internal Report Dated March 3, 2003.
MRDI, 2001, Troilus Mine Project, 87 and J4 Zone Review Report, Three Ring Binder Dated January2001.
Piteau Associates Engineering Ltd., 2002, June 2002 Geotechnical Inspection, Report Dated August 7, 2002 by P. Mark Hawley.
Q’Pit Inc., 1998, Mine Planning for the Troilus Project, Prepared for Inmet Mining Corporation Dated September, 1998.
Q’Pit Inc., 1998, Mine Planning for the Troilus Project, Prepared for Inmet Mining Corporation Dated June, 1998.
Q’Pit Inc., 1996, Limit Design and Production Planning for the Troilus Project, Prepared for Inmet Mining Corporation Dated January 1996.
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
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Q’Pit Inc., 1995, A Sensitivity Analysis for the Troilus Project, Prepared for Metall Mining Corporation Dated February 1995.
Q’Pit Inc., 1994, Limit Design & Long Term Planning Study for the Troilus Project, Prepared for Metall Mining Corporation Dated July 1994.
Roscoe Postle Associates Inc., 2005, Troilus Mine Zone 87 Underground Mineral Resource Estimate, Draft Report Dated December 12, 2005.
Roscoe Postle Associates Inc., 2002, Troilus Mine J4 Deposit Mineral Resource Estimate, Memorandum Dated September 24 2002.
Roy, P., 2003, Environment Considerations for Additional Reserves Projects, Troilus Division Internal Report Dated February 13, 2003.
Roy, P., 2003, Revision du Plan de Restauration, Troilus Division Internal Report Dated April, 2002.
SGS Lakefield Research Limited, 2003, The Metallurgical Response of J4 Ore Troilus Mine Prepared for Inmet Mining Troilus Division, LR10484-001 – Progress Report No. 1 dated January 23, 2003 by S.R. Williams and Dan Imeson.
Sim, R. C., 1998, Resource Estimates for the 87/87S and J4 Zones of the Troilus Mine, Quebec, Internal Inmet Report Dated September 18, 1998.
Sim, R. C., 1998, Adjustments to the Block Model, Internal Inmet Memorandum Dated October 23, 1998.
Sim, R. C., 1998, J4 Zone Sampling Variogram Comparison, Internal Inmet Memorandum Dated November 26, 1998.
Sim, R. C., 1999, Resource/Reserve Estimates for the 87 Zone of the Troilus Mine, Quebec, Internal Inmet Report Dated August 20, 1999.
Sim, R. C., 1999, Troilus Project – Block Model Comparison, Internal Inmet Memorandum Dated August 31, 1999.
Sim, R. C., 1999, Troilus – Resource Changes in Optimistic Model, Internal Inmet Memorandum Dated September 3, 1999.
Sim, R. C., 2000, Comparison of J4 and the 87 South Zones, Internal Inmet Memorandum Dated August 7, 2000.
Sim, R. C., 2001, Resource Estimates for the 87 Zone and J4 Deposits Troilus Project, Quebec, January 1, 2001, Internal Inmet Report Dated February 2, 2001.
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
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Sim, R. C., 2001, MRDI 87 Zone Results, Internal Inmet Memorandum Dated January 14, 2001.
Sylvestre, Y., 2003, Metallurgical Update J4-87 Zone Results, Troilus Division Internal Inmet Report Dated March 5, 2003.
Sylvestre, Y. and Fortin, A., 2003, Description of the Troilus Mill, Troilus Division Internal Inmet Report.
Troilus Engineering Department, 1999, 1999 Troilus Ore Reserve Report, Internal Inmet Report Dated May 1999.
Troilus Engineering Department, 2001, 2001 Troilus Ore Reserve Report, Internal Inmet Report Dated April 2001.
Tutton, D.A., 2001, Site Visit Report for Project Troilus, Report Prepared for Inmet Mining Corporation, November 2001.
Tutton, D.A., 1996, Equipment dimensioning and mining cost update for Project Troilus Quebec, Report prepared for Inmet Mining Corporation, January 1996.
Warren, D., 1998, Background on Geostat’s latest block model, Notes dated April 6, 1998.
Warren, D., 1998, Troilus Ore Reserves, January 1998.
RELATED TO QUALITY ASSURANCE AND QUALITY CONTROL
Bloom, L., 1999, Relationship of assays reported by CRM and Lakefield, Analytical Solution Ltd, Report submitted to Inmet Mining Corp., Dated April 21, 1999.
Bloom, L., 1999, Troilus: Assaying at the Centre de Recherche Minérale for the 1999 exploration and infill drilling programs, Analytical Solution Ltd., Report submitted to Inmet Mining Corp., Dated June 1999.
Boily, B., 1999, Month end report – September 1999, Inmet Mining Corp., internal memorandum, Dated October 1, 1999.
Boily, B., 2002, Contrôle de la qualité – Programme de forage 2002, Inmet Mining Corp., internal memorandum, Dated January 16, 2002.
Boily, B., 2003, Contrôle de la qualité – Programme de forage 2002 (Zone J4), Inmet Mining Corp., Internal Memorandum, dated March 3, 2003.
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
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Boily, B., 2005, Contrôle de la qualité – Programme de forage 2005 (Projet souterrain), Inmet Mining Corp., Internal Memorandum, Dated November 23, 2005.
Casmyn, 1992, CGL and fire assay test program, Casmyn Research & Engineering, Report submitted to Minnova Inc., Dated June 1992.
Cater, D., 1997, Comparative assay lab results on blastholes – Troilus Project, Inmet Mining Corp., Internal Memorandum, Dated October 27, 1997.
CRM, 1991, Étude de la dispersion de la minéralisation de la proptriété Frotet-Troilus, Centre de Recherche Minérale, J.F. Willhelmy, Submitted to Minnova Inc., projet 90LP107, rapport final, dated April 3, 1991.
Fraser, R.J., 1988, A study of gold assaying techniques and analytical dispersion, Frotet-Troilus Project, Internal Report, Exploration Kerr Adisson Inc, dated March 9, 1998.
Fraser, R.J., 1989, A reapraisal of gold assaying, Frotet-Troilus Lake Project Area, Internal Report, Minnova Inc, dated July 20, 1989.
Fraser, R.J., 1990, Check Assaying of the J4 and J5 Zones, Internal Memorandum, Minnova Inc., dated August 10, 1990.
Fraser, R.J., 1990, Check Assaying – Frotet-Troilus Project, Internal Report, Minnova Inc., dated June 30, 1990.
Geostat, 1991, Analysis and review of estimated reserves for the Troilus-Frotet Deposit, Geostat Systems International Inc., Report submitted to Minnova Inc., Dated February 21, 1991.
Geostat, 1992, Étude statistique des données de ré-analyse de l'or du gisement de Troilus-Frotet, Geostat Systems International Inc., Report Submitted to Minnova Inc., Dated February 19, 1992.
Gosselin, G., 1997, Évaluation des procédures en vigueur au laboratoire de contrôle, Centre de Recherche Minérale, projet 7210 C 613 (SLA 96-052), report submitted to Inmet Mining Corp. (Projet Troilus), dated June, 1997.
Jean, R., 1990, Specific Gravity Study, Internal Report, Minnova Inc., dated May, 1990.
Kilborn, 1993, Feasibility Study – Troilus Project – Development of an open pit gold mine, project 9385, Kilborn-Met-Chem-Pellemon, Submitted to Metall Mining Corp., Dated September 1993.
Lakefield, 1999, An investigation of sampling control test protocols as applied to gold ore samples from the Troilus mine, Lakefield Research Limited, Progress Report No. 1, Submitted to Inmet Mining Corp., Dated January 22, 1999.
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
21-8
Lakefield, 1999, An evaluation of gold content in drilling samples from the Troilus mine, Lakefield Research Limited, Progress Report No. 1, Submitted to Inmet Mining Corp., Dated January 25, 1999.
Leblanc, M., Perron, B., 1999, rapport des campagnes de sondage DDH et Infilling – 1999, Inmet Mining Corp., Internal report, Dated Summer 1999.
Morin, P., 1996, Laboratory Procedure for analysis and process verification, Inmet Mining Corp., Internal Memorandum, Dated October 1, 1996.
Morin, P., 1997, Étude comparative des laboratoires externes, Inmet Mining Corp., Internal Memorandum, Not dated (1997).
Pitard, F.F., 1998, Study of the heterogeneity of gold in the Troilus mine ore, Francis Pitard Sampling Consultants, report submitted to Inmet Mining Corp., Dated September 3, 1998.
Pitard, F.F., 1999, Sampling for ore grade control, and process control practices at the Inmet – Troilus mine, Francis Pitard Sampling Consultants, report submitted to Inmet Mining Corp., Dated February 5, 1999.
Pitard, F.F., 1999, Study of the heterogeneity of gold in the Troilus mine J4 ore, Francis Pitard Sampling Consultants, report submitted to Inmet Mining Corp., Dated February 5, 1999.
Riverin, G., 1992, Final report on the Frotet-Troilus re-assaying program, Internal Memorandum, Minnova Inc., Dated February 24, 1992.
Riverin, G., 1992, Standard interne pour minerai d'or: MVA-1, Internal Memorandum, Minnova Inc., Dated April 28, 1992.
Riverin, G., 1992, Standards pour analyse d'or, Internal Memorandum, Minnova Inc., Dated November 18, 1992.
Riverin, G., 1997, Troilus Mine – Assay Procedures – Nugget Effect vs Sample Size, Internal Memorandum, Inmet Mining Corp., Dated March 20, 1997.
Salmon, B., 1993, Report on the Diamond Drilling Program, November 1992 – March 1993 and Ore Reserve Calculation, Metall Mining Corp., Internal report, Dated July 1993.
Salmon, B., 1994, Comparaison Entre les Résultats des Tests Métallurgiques Effectués sur la Carotte de Forage et les Résultats d'Analyses des Carottes de Forage, Internal Memorandum, Metall Mining Corp., Dated March 25 1994.
Salmon, B., 1996, Contrôle de qualité des Analyses de Carottes de Forage au Diamant, Inmet Mining Corp., Internal Memorandum, dated August 22, 1996.
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21-9
Salmon, B., 1997, Troilus Project – Ore Reserves as of January 1, 1997, Inmet Mining Corp., Internal report, Dated January 1997.
Sketchley, D.A., 1999, Technical Report on the Heterogeneity of Gold Mineralization in J4 Zone at Troilus Mine, Quebec, Submitted to Inmet Mining Corp., Dated January 10, 1999.
Warren, D.A., 2001, 2001 Troilus Ore Reserve Report, Inmet Mining Corp., Internal Report, Dated April 23, 2001.
RELATED TO PIT SLOPE DESIGNS
Bélanger, 2002, Étude de Faisabilité des Pentes de la Fosse J4. Internal Report Prepared for Les Mines Inmet – Division Troilus, 18 p.
Bélanger, 2003, Differents Tests sur Section du Mur Est de la Fosse J4 afin d’Optimiser l’Angle de Predecoupage, Internal Report Prepared for Les Mines Inmet – Division Troilus.
Lamontagne, E, 2000, Cartographie Structurale. Internal Report Prepared for Les Mines Inmet – Division Troilus, November 10.
Piteau, 2001, Slope Stability Analysis and Design Update for the West Wall of Fosse 87. 24p.
Piteau, 1997, Slope Stability Analysis and Slope Design for the East Wall of Fosse 87. Report prepared for Les Mines Inmet – Troilus Mine, August.
Roche Ltee., 1991, Analyse de stabilité: Projet Troilus- Frotet. Prefeasibility Study Report Troilus. Report Prepared for Minnova, November, 130 p.
Supportek, 1993, Stabilité des Pentes et Aspects Connexes Fosse 87 et J-4 du Projet Troilus. Report Prepared for Corporation Minière Metall, August, 61p.
.
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22-1
22 SIGNATURE PAGE This report titled “Technical Report on the Troilus Mine Zone 87 Underground
Mineral Resource Estimate, Québec, Prepared for Inmet Mining Corporation” and dated
April 28, 2006, was prepared and signed by the following author:
(Signed and Sealed)
Dated at Toronto, Ontario ROSCOE POSTLE ASSOCIATES INC April 28, 2006 Luke Evans, M.Sc., P.Eng. Consulting Geological Engineer
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23-1
23 CERTIFICATE OF QUALIFICATIONS R. LUKE EVANS
I, R. Luke Evans, P.Eng., as an author of this report entitled “Technical Report on the Troilus Mine Zone 87 Underground Mineral Resource Estimate, Québec”, prepared for Inmet Mining Corporation and dated April 28, 2006, do hereby certify that:
1. I am a Consulting Geological Engineer with Roscoe Postle Associates Inc. of Suite 501, 55 University Ave Toronto, ON, M5J 2H7.
2. I am a graduate of University of Toronto, Ontario, Canada, in 1983 with a Bachelor of Applied Science degree in Geological Engineering and Queen’s University, Kingston, Ontario, Canada, in 1986 with a Master of Science degree in Mineral Exploration.
3. I am registered as a Professional Engineer in the Province of Ontario (Reg.# 90345885). I have worked as a professional geologist for a total of 22 years since my graduation. My relevant experience for the purpose of the Technical Report is:
Review and report as a consultant on numerous exploration and mining projects around the world for due diligence and regulatory requirements Senior Project Geologist in charge of exploration programs at several gold and base metal mines in Quebec Project Geologist at a gold mine in Quebec in charge of exploration and definition drilling Project Geologist in charge of sampling and mapping programs at gold and base metal properties in Ontario, Canada
4. I have read the definition of "qualified person" set out in National Instrument 43-101 ("NI43-101") and certify that by reason of my education, affiliation with a professional association (as defined in NI43-101) and past relevant work experience, I fulfill the requirements to be a "qualified person" for the purposes of NI43-101.
5. I visited the Troilus Mine from July 5 to 6, 2005, and from October 4 to 6, 2005.
6. I am responsible for overall preparation of the Technical Report.
7. I am independent of the Issuer applying the test set out in Section 1.4 of National Instrument 43-101.
8. I have had no prior involvement with the property that is the subject of the Technical Report.
9. I have read National Instrument 43-101F1, and the Technical Report has been prepared in compliance with National Instrument 43-101 and Form 43-101F1.
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23-2
10. To the best of my knowledge, information, and belief, the Technical Report contains all scientific and technical information that is required to be disclosed to make the technical report not misleading.
Dated 28th day of April, 2006
(Signed and Sealed)
R. Luke Evans, P.Eng.
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
24-1
24 APPENDIX 1 CLAIMS
TABLE 24-1 LIST OF CLAIMSInmet Mining Corporation
Claim SNRC Twp/Area InmetInterest
RecordingDate
ExpirationDate Area (Ha) Work Due Excess Credits
B.M. 829 32O01 LAC MISKITTENAU 100% 3/12/1996 12/3/2006 840
1133882 32J15 LAC TROILUS 100% 11/30/2005 3/12/2006 31.23 1,683.31 $ 5,917.17 $
1133883 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 31.12 1,677.38 $ 5,896.33 $
1133884 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 31.16 1,679.54 $ 5,903.91 $
1133885 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 30.88 1,664.45 $ 5,850.86 $
1133886 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.24 2,923.57 $ 10,276.89 $
1133887 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.24 2,923.57 $ 10,276.89 $
1133889 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 15.66 844.08 $ 2,967.11 $
1133890 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 15.68 953.50 $ 3,351.74 $
1133891 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.23 2,923.03 $ 10,275.00 $
1133892 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.23 2,923.03 $ 10,275.00 $
1133893 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.23 2,923.03 $ 10,275.00 $
1133894 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.23 2,923.03 $ 10,275.00 $
1133895 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.23 2,923.03 $ 10,275.00 $
1133896 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.23 2,923.03 $ 10,275.00 $
1133897 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.23 2,923.03 $ 10,275.00 $
1133898 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.23 2,923.03 $ 10,275.00 $
1133899 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.23 2,923.03 $ 10,275.00 $
1133902 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.22 2,922.49 $ 10,273.10 $
1133903 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.22 2,922.49 $ 10,273.10 $
1133904 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.22 2,922.49 $ 10,273.10 $
1133905 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.22 2,922.49 $ 10,273.10 $
1133906 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.22 2,922.49 $ 10,273.10 $
1133907 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.22 2,922.49 $ 10,273.10 $
1133908 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.22 2,922.49 $ 10,273.10 $
1133909 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.22 2,922.49 $ 10,273.10 $
1133911 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133912 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133913 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133914 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133915 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133916 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133917 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133918 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133919 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133920 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
24-2
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TABLE 24-1 LIST OF CLAIMSInmet Mining Corporation
Claim SNRC Twp/Area InmetInterest
RecordingDate
ExpirationDate Area (Ha) Work Due Excess Credits
1133921 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133922 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133923 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1133924 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1133925 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1133926 32J15 LAC TROILUS 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1133927 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.22 2,922.49 $ 10,273.10 $
1133929 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133930 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133931 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133932 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133933 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.21 2,921.95 $ 10,271.21 $
1133934 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 51.63 2,782.88 $ 9,782.37 $
1133935 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 29.73 1,602.46 $ 5,632.96 $
1133936 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133937 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133938 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133939 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133940 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133941 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133942 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 32.92 1,774.41 $ 6,237.38 $
1133943 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1133944 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1133945 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1133946 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.2 2,921.41 $ 10,269.31 $
1133947 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 51.28 2,764.02 $ 9,716.06 $
1133948 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 54.15 2,918.71 $ 10,259.84 $
1133949 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 42.51 2,291.31 $ 8,054.40 $
1133950 32J16 LAC BUEIL 100% 11/30/2005 4/27/2007 7.66 412.88 $ 1,451.35 $
1133951 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1133952 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.13 2,917.64 $ 10,256.05 $
1133953 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 41.82 2,254.12 $ 7,923.67 $
1133954 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 20.08 1,082.32 $ 3,804.57 $
1133955 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 1.95 105.11 $ 369.47 $
1133956 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 25.1 1,352.90 $ 4,755.72 $
1133957 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.15 2,918.71 $ 10,259.84 $
24-3
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TABLE 24-1 LIST OF CLAIMSInmet Mining Corporation
Claim SNRC Twp/Area InmetInterest
RecordingDate
ExpirationDate Area (Ha) Work Due Excess Credits
1133958 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 53.11 2,862.66 $ 10,062.79 $
1133959 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 37.34 2,012.65 $ 7,074.84 $
1133960 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 46.18 2,489.13 $ 8,749.76 $
1133961 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 9.42 507.74 $ 1,784.81 $
1133962 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 25.33 1,365.30 $ 4,799.29 $
1133963 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.15 2,918.71 $ 10,259.84 $
1133964 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.18 2,920.33 $ 10,265.52 $
1133965 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.16 2,919.25 $ 10,261.73 $
1133966 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 26.66 1,436.99 $ 5,051.29 $
1133967 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 0.2 10.78 $ 37.89 $
1133968 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 13.83 745.44 $ 2,620.38 $
1133969 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 47.87 2,580.22 $ 9,069.96 $
1133970 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.16 2,919.25 $ 10,261.73 $
1133971 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.16 2,919.25 $ 10,261.73 $
1133972 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 27.32 1,472.56 $ 5,176.34 $
1133973 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 0.01 0.54 $ 1.89 $
1133974 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 4.23 228.00 $ 801.46 $
1133975 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 24.44 1,317.33 $ 4,630.66 $
1133976 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 46.01 2,479.96 $ 8,717.55 $
1133977 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.16 2,919.25 $ 10,261.73 $
1133978 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.16 2,919.25 $ 10,261.73 $
1133979 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.15 2,918.71 $ 10,259.84 $
1133980 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 38.4 2,069.78 $ 7,275.68 $
1133982 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 19.27 1,038.66 $ 3,651.10 $
1133983 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.15 2,918.71 $ 10,259.84 $
1133984 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.15 2,918.71 $ 10,259.84 $
1133985 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.15 2,918.71 $ 10,259.84 $
1133986 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.14 2,918.18 $ 10,257.95 $
1133987 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 50.27 2,709.58 $ 9,524.69 $
1133988 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 45.86 2,471.88 $ 8,689.13 $
1133989 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.14 2,918.18 $ 10,257.95 $
1133990 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.14 2,918.18 $ 10,257.95 $
1133991 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.14 2,918.18 $ 10,257.95 $
1133994 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.13 2,917.64 $ 10,256.05 $
1133995 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.13 2,917.64 $ 10,256.05 $
1133996 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.13 2,917.64 $ 10,256.05 $
24-4
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
TABLE 24-1 LIST OF CLAIMSInmet Mining Corporation
Claim SNRC Twp/Area InmetInterest
RecordingDate
ExpirationDate Area (Ha) Work Due Excess Credits
1133997 32O01 LAC MISKITTENAU 100% 11/30/2005 4/27/2007 54.13 2,917.64 $ 10,256.05 $
1133998 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.18 2,920.33 $ 10,265.52 $
1133999 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1134000 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1134001 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.19 2,920.87 $ 10,267.42 $
1134002 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.18 2,920.33 $ 10,265.52 $
1134003 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.18 2,920.33 $ 10,265.52 $
1134004 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.18 2,920.33 $ 10,265.52 $
1134005 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.18 2,920.33 $ 10,265.52 $
1134006 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.17 2,919.79 $ 10,263.63 $
1134007 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.17 2,919.79 $ 10,263.63 $
1134008 32O02 LAC MONTMORT 100% 11/30/2005 4/27/2007 54.17 2,919.79 $ 10,263.63 $
119 CLAIMS 6422.35 301,000.07 $ 1,058,072.71 $
24-5
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ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
25-1
25 APPENDIX 2 GEOLOGICAL SECTIONS AND PLANS
Inm
et M
inin
g C
orp
ora
tion
Tro
ilu
s M
ine
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un
d P
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ct,
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ure
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ross
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3,3
50
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rid
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ININ
G C
ON
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55 U
nive
rsity
Ave
nue,
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te 5
01
Toro
nto,
Ont
ario
M5J
2H
7(A
pril
2006
)
Ulti
mat
e P
it
Infe
rred
Lim
itIn
dica
ted
Lim
it
Zone
21
Zone
19
Zone
20
KN
-320
KN
-320
1.43
KN
-622
KN
-622
1.17
KN
-626
KN
-626
1.55
KN
-648
KN
-648
1.18
KN
-649
KN
-649
1.32
KN
-671
KN
-671
1.6
0
KN
-674
A
KN
-674
A
KN
-674
B
KN
-674
B0.69
2.08
1.63
1.42
1.50
1.37
1.33
1.67
1.44
1.43
1.42
1.45
1.72
1.56
1.16
1.61
1.65
1.38
1.72
1.45
1.14
1.53
1.80
1.46
1.50
1.26
1.42
1.98
1.44
1.56
1.55
1.44
1.48
2.06
1.62
1.68
1.68
1.64
1.51
2.12
1.57
1.56
1.78
1.59
1.86
1.69
1.44
1.41
1.83
1.54
1.39
1.82
1.44
1.29
1.79
1.55
1.22
1.83
1.54
1.23
1.72
1.53
1.29
1.74
1.73
1.20
1.76
1.46
1.30
1.71
1.69
1.19
1.53
1.61
1.75
1.87
1.48
1.01
1.54
1.52
1.78
2.01
1.77
1.28
1.42
1.51
1.71
2.01
1.95
1.65
1.42
1.36
1.66
1.86
2.06
2.09
1.29
1.65
1.66
2.06
2.36
1.32
1.69
1.50
1.91
2.54
1.33
1.58
1.36
1.94
2.67
2.18
1.40
1.38
1.18
1.83
2.33
0.93
1.46
1.27
1.23
1.66
2.05
1.22
1.15
1.26
1.10
1.53
1.93
1.70
1.00
1.06
1.42
1.95
1.58
1.01
1.04
1.36
1.75
1.55
0.95
1.03
1.40
1.32
1.50
0.81
0.99
1.21
1.05
1.43
0.80
0.87
1.07
1.20
1.43
0.82
0.85
1.01
1.10
1.29
0.85
1.03
1.08
1.26
1.32
0.91
0.99
1.19
1.19
1.37
0.96
1.25
1.33
1.35
1.23
1.07
1.41
1.37
1.55
1.54
1.23
1.65
1.23
1.69
1.59
1.43
1.64
0.84
1.92
1.47
1.57
1.21
2.24
1.29
1.13
1.42
2.00
1.28
0.92
1.39
1.75
1.43
0.81
1.19
1.61
1.54
0.64
0.81
1.36
1.71
0.62
0.70
1.15
2.00
0.61
0.71
0.75
1.08
0.62
0.72
0.78
0.73
0.64
0.71
0.80
0.74
0.65
0.69
0.77
0.74
0.68
0.74
0.74
0.73
0.68
0.72
0.72
0.73
0.57
0.75
0.71
0.71
0.69
0.67
0.71
0.71
0.69
0.70
0.71
0.75
0.66
0.68
0.74
0.87
-50
050
100
150
200
9600E9600E
9700E9700E
9800E9800E
9900E9900E
10000E10000E
10100E10100E
10200E10200E
10300E10300E
10400E10400E
10500E10500E
10600E10600E
10700E10700E
4700
Ele
v.
4700
Ele
v.
4800
Ele
v.
4800
Ele
v.
4900
Ele
v.
4900
Ele
v.
5000
Ele
v.
5000
Ele
v.
5100
Ele
v.
5100
Ele
v.
5200
Ele
v.
5200
Ele
v.
5300
Ele
v.
5300
Ele
v.
5400
Ele
v.
5400
Ele
v.
Cut
Au
Ass
ay H
isto
gram
Cut
Au
3 m
Com
posi
tes
Cut
Au
Inte
rsec
tion
Ave
rage
s
0.00
00.
300
0.30
00.
800
0.80
01.
000
1.00
01.
500
1.50
02.
000
2.00
03.
000
g/t A
u
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
25-2
Inm
et M
inin
g C
orp
ora
tion
Tro
ilu
s M
ine
Un
der
gro
un
d P
roje
ct,
Qu
ebec
Fig
ure
25
-2C
ross
Sec
tio
n 1
3,6
00
N
(Lo
ok
ing
Min
e G
rid
No
rth
)
RO
SCO
E PO
STLE
ASS
OC
IATE
S IN
C.
GE
OLO
GIC
AL
AN
D M
ININ
G C
ON
SU
LTA
NTS
55 U
nive
rsity
Ave
nue,
Sui
te 5
01
Toro
nto,
Ont
ario
M5J
2H
7(A
pril
2006
)
Ulti
mat
e P
it
Infe
rred
Lim
itIn
dica
ted
Lim
it
Zone
21
Zone
19
Zone
20
2.22
2.65
1.73
2.68
2.83
3.89
1.60
2.78
3.07
2.50
2.24
2.68
3.76
2.68
2.42
2.13
2.97
2.70
2.49
2.60
2.62
2.24
2.57
2.10
2.62
3.20
2.93
1.97
1.49
2.67
2.36
2.01
1.40
1.96
2.47
2.42
1.91
1.95
1.90
1.68
1.92
1.89
1.62
2.09
2.07
1.43
2.09
2.02
1.15
2.14
2.52
1.83
1.33
2.01
1.37
1.88
3.11
2.10
1.09
1.88
1.58
1.73
2.73
2.67
1.46
1.45
1.53
1.76
2.79
2.99
1.29
1.66
1.65
2.46
2.78
1.51
1.60
1.62
2.10
2.95
1.45
1.66
2.18
2.82
2.70
1.51
1.63
1.87
2.43
2.64
1.59
2.02
2.34
2.55
1.96
1.75
1.72
2.30
2.18
2.57
1.63
1.71
1.73
1.76
1.57
1.53
1.42
2.27
1.32
1.32
1.32
1.32
1.03
1.14
1.41
1.59
1.36
0.85
1.48
1.87
1.20
0.78
1.41
1.27
1.47
1.62
1.00
1.33
1.46
1.52
1.32
1.03
1.47
2.19
1.73
1.49
1.13
1.29
1.19
2.72
2.14
1.68
1.12
1.08
1.19
2.46
2.88
1.54
1.17
0.92
1.15
1.89
2.85
1.37
0.79
1.08
1.47
2.39
2.38
1.43
1.00
0.96
1.28
2.15
2.42
1.28
0.93
0.88
1.25
2.00
2.11
1.35
1.00
0.81
1.12
1.55
2.04
1.29
1.06
0.72
1.05
1.51
1.86
1.47
1.19
0.71
0.88
1.39
1.75
1.49
0.74
0.89
1.37
1.74
1.39
1.00
0.64
1.06
1.70
1.82
1.33
1.32
0.29
0.77
1.72
1.59
1.21
0.65
1.06
1.59
1.67
1.25
0.88
0.76
0.99
1.41
1.59
0.95
0.74
0.94
1.61
0.99
1.15
0.80
0.89
1.36
1.56
0.89
0.83
0.71
1.15
1.47
0.95
0.98
0.58
1.15
1.41
1.35
0.88
1.00
0.94
1.33
1.09
0.89
1.03
1.03
1.82
0.72
0.96
1.00
1.15
1.06
1.21
1.76
KN
-307
KN
-307
2.19
KN
-506
KN
-506
2.31
KN
-572
KN
-572
1.04
KN
-590
KN
-590
1.88
KN
-599
KN
-599
1.06
KN
-661
KN
-661
2.17
KN
-669
KN
-669
1.32K
N-7
4
KN
-74
2.58
-50
050
100
150
200
9600E9600E
9700E9700E
9800E9800E
9900E9900E
10000E10000E
10100E10100E
10200E10200E
10300E10300E
10400E10400E
10500E10500E
10600E10600E
10700E10700E
4700
Ele
v.
4700
Ele
v.
4800
Ele
v.
4800
Ele
v.
4900
Ele
v.
4900
Ele
v.
5000
Ele
v.
5000
Ele
v.
5100
Ele
v.
5100
Ele
v.
5200
Ele
v.
5200
Ele
v.
5300
Ele
v.
5300
Ele
v.
5400
Ele
v.
5400
Ele
v.
Cut
Au
Ass
ay H
isto
gram
Cut
Au
3 m
Com
posi
tes
Cut
Au
Inte
rsec
tion
Ave
rage
s
0.00
00.
300
0.30
00.
800
0.80
01.
000
1.00
01.
500
1.50
02.
000
2.00
03.
000
g/t A
u
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
25-3
Inm
et M
inin
g C
orp
ora
tion
Tro
ilu
s M
ine
Un
der
gro
un
d P
roje
ct,
Qu
ebec
Fig
ure
25
-3C
ross
Sec
tio
n 1
3,7
00
N
(Lo
ok
ing
Min
e G
rid
No
rth
)
RO
SCO
E PO
STLE
ASS
OC
IATE
S IN
C.
GE
OLO
GIC
AL
AN
D M
ININ
G C
ON
SU
LTA
NTS
55 U
nive
rsity
Ave
nue,
Sui
te 5
01
Toro
nto,
Ont
ario
M5J
2H
7(A
pril
2006
)
Ulti
mat
e P
it
Infe
rred
Lim
itIn
dica
ted
Lim
it
Zone
21
Zone
19
Zone
20
2.84
2.38
2.30
1.89
1.65
1.09
1.30
2.57
2.74
1.93
1.94
1.41
1.20
2.58
3.40
1.80
1.89
1.44
1.22
1.38
2.11
1.49
1.55
1.54
1.59
1.20
1.27
1.89
2.61
0.95
1.83
1.02
1.26
1.37
1.15
1.29
2.02
1.49
2.17
0.61
1.24
1.37
1.35
1.28
1.69
1.67
1.65
1.40
1.50
1.69
1.31
1.10
1.37
1.26
2.19
1.81
1.20
1.28
1.32
1.21
2.30
2.58
1.62
1.37
1.28
1.47
1.05
3.09
2.05
1.60
1.41
1.08
1.55
1.28
7.77
3.09
2.36
1.40
1.07
0.93
1.52
1.71
2.58
2.93
1.29
1.32
1.23
0.86
1.55
1.69
2.34
3.01
1.97
1.92
1.27
0.83
1.02
1.50
1.16
1.90
2.71
2.44
2.31
1.22
0.96
0.71
1.83
0.98
1.60
2.43
1.85
2.03
1.57
1.11
0.67
1.31
1.98
0.87
0.86
1.64
1.54
1.93
1.71
1.23
0.90
1.08
1.18
1.81
1.32
0.61
1.58
1.36
1.77
1.66
1.43
1.07
0.93
1.07
1.65
0.78
1.06
1.34
1.57
1.90
1.39
1.37
0.98
0.97
1.76
1.33
0.92
1.35
1.44
2.24
1.30
1.47
1.09
0.99
1.78
1.47
1.32
1.37
1.73
1.41
1.52
1.29
1.02
2.01
1.99
1.60
1.50
1.88
1.59
1.35
1.37
1.04
2.39
2.24
1.77
1.84
1.51
1.38
1.55
1.14
2.64
1.88
1.43
1.75
1.40
1.56
1.25
1.02
2.76
2.14
1.70
1.58
1.58
1.63
1.52
1.08
2.01
1.72
1.47
1.42
1.80
1.77
1.16
1.97
1.60
1.65
1.44
1.55
1.76
1.18
2.38
1.29
1.69
1.49
1.59
1.70
1.29
1.10
2.31
1.42
1.52
1.73
1.59
1.59
1.31
1.45
1.78
1.53
1.94
1.43
1.82
1.29
1.14
1.54
1.46
1.69
1.48
1.81
1.22
1.21
1.51
1.39
1.60
1.68
1.70
1.59
1.24
1.48
1.34
1.61
1.89
1.78
1.75
1.26
1.11
1.27
1.42
2.13
1.60
1.76
1.36
1.19
1.06
1.45
2.14
1.80
1.60
1.73
1.20
1.10
1.35
1.93
2.09
1.78
2.02
1.64
1.23
1.76
2.21
1.89
2.01
2.17
1.07
1.61
2.17
2.01
2.03
2.72
1.15
1.40
1.98
2.24
1.90
2.29
2.88
0.72
1.14
1.90
2.23
1.82
2.14
2.70
1.22
1.50
2.17
1.97
2.05
2.56
1.26
1.15
2.23
2.09
2.01
2.35
2.87
1.19
1.61
1.81
2.24
1.83
2.10
2.90
1.19
1.84
3.23
2.38
1.97
2.93
1.12
1.74
1.92
1.97
0.97
2.94
2.18
1.53
1.81
1.94
2.20
2.19
2.14
2.12
2.03
2.19
2.18
2.23
2.36
2.19
2.63
3.47K
N-4
99
KN
-499
1.84
KN
-570
KN
-570
KN
-592
KN
-592
1.42
KN
-658
KN
-658
1.62
KN
-75
KN
-75
1.61
-50
050
100
150
200
9600E9600E
9700E9700E
9800E9800E
9900E9900E
10000E10000E
10100E10100E
10200E10200E
10300E10300E
10400E10400E
10500E10500E
10600E10600E
10700E10700E
4700
Ele
v.
4700
Ele
v.
4800
Ele
v.
4800
Ele
v.
4900
Ele
v.
4900
Ele
v.
5000
Ele
v.
5000
Ele
v.
5100
Ele
v.
5100
Ele
v.
5200
Ele
v.
5200
Ele
v.
5300
Ele
v.
5300
Ele
v.
5400
Ele
v.
5400
Ele
v.
Cut
Au
Ass
ay H
isto
gram
Cut
Au
3 m
Com
posi
tes
Cut
Au
Inte
rsec
tion
Ave
rage
s
0.00
00.
300
0.30
00.
800
0.80
01.
000
1.00
01.
500
1.50
02.
000
2.00
03.
000
g/t A
u
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
25-4
Inm
et M
inin
g C
orp
ora
tion
Tro
ilu
s M
ine
Un
der
gro
un
d P
roje
ct,
Qu
ebec
Fig
ure
25
-4 C
ross
Sec
tio
n 1
3,8
00
N
(Lo
ok
ing
Min
e G
rid
No
rth
)
RO
SCO
E PO
STLE
ASS
OC
IATE
S IN
C.
GE
OLO
GIC
AL
AN
D M
ININ
G C
ON
SU
LTA
NTS
55 U
nive
rsity
Ave
nue,
Sui
te 5
01
Toro
nto,
Ont
ario
M5J
2H
7(A
pril
2006
)
Ulti
mat
e P
it
Infe
rred
Lim
itIn
dica
ted
Lim
it
Zone
21
Zone
19
Zone
20
1.51
1.69
1.53
2.58
4.60
1.55
0.77
1.65
1.51
2.22
3.48
2.77
1.57
0.78
0.85
2.17
1.59
1.56
3.06
4.12
1.39
0.84
1.40
1.53
2.36
3.46
2.65
1.79
1.41
1.15
1.68
1.83
1.27
1.80
2.60
4.47
1.50
1.31
2.41
1.02
1.31
1.82
2.79
1.63
1.37
1.47
1.45
1.62
1.50
1.90
1.53
1.28
1.17
1.22
1.56
1.39
1.54
1.70
1.30
1.11
0.91
1.63
1.41
1.03
1.76
1.28
1.25
1.65
0.87
1.06
1.86
1.04
0.97
1.81
1.17
1.46
0.97
2.22
0.95
0.95
1.90
1.17
2.05
0.93
1.50
1.31
1.03
1.17
1.80
1.50
1.26
2.41
1.31
1.05
1.52
1.12
1.31
2.04
1.16
2.01
0.86
1.43
1.17
1.55
1.95
1.33
1.13
2.60
1.26
0.93
1.35
1.77
1.61
1.72
1.09
2.62
1.63
0.83
1.38
1.81
1.70
1.89
1.19
1.77
0.85
1.07
1.70
1.81
1.40
1.54
1.24
1.70
1.09
0.79
1.48
1.73
1.47
1.79
1.47
1.36
0.67
1.11
1.42
1.45
1.15
1.67
1.30
1.43
0.78
0.67
1.07
1.18
1.19
1.63
1.42
0.99
0.67
0.74
0.90
0.98
1.01
1.53
1.15
0.70
0.72
0.77
0.84
0.92
1.62
1.24
0.81
0.65
0.73
0.75
0.87
0.85
0.64
0.66
0.71
0.79
0.80
0.62
0.74
0.80
0.85
0.98
0.69
0.78
0.80
1.09
0.79
1.25
0.97
1.33
1.48
1.95
1.51
1.57
1.52
1.71
1.78
1.23
1.56
1.55
1.89
1.88
1.60
1.76
1.40
2.00
1.95
1.69
1.60
1.65
1.72
2.08
1.96
1.89
1.60
1.34
1.62
1.60
2.04
2.03
1.56
1.68
1.44
1.65
2.05
1.88
1.86
1.51
1.20
1.51
1.86
1.97
2.22
1.00
2.11
1.11
1.43
1.81
1.94
1.94
1.27
3.17
1.17
1.57
1.94
1.97
1.91
1.75
2.28
1.33
1.60
1.84
1.82
2.00
1.67
2.09
2.18
1.34
1.93
2.25
2.06
1.78
1.77
2.43
2.01
1.33
1.91
2.23
2.22
2.16
1.78
2.44
1.91
1.49
1.82
2.30
1.76
2.26
1.86
2.17
2.11
1.11
2.16
2.69
2.99
2.19
0.88
2.12
2.25
2.07
1.72
1.60
2.65
2.91
2.15
2.17
2.09
2.20
2.25
1.84
1.67
2.93
2.19
2.46
2.00
2.31
2.45
1.98
2.08
2.09
2.24
2.47
2.00
2.05
2.58
1.37
1.52
2.05
2.14
2.43
2.64
1.72
2.03
2.07
2.06
1.54
2.21
2.41
2.64
2.23
2.05
2.06
2.62
2.92
2.27
2.06
2.49
2.21
KN
-306
KN
-306
1.16
1.69
KN
-591
KN
-591
1.46
1.62
KN
-652
KN
-652
0.94
KN
-663
KN
-663
0.69
1.01
KN
-672
KN
-672
KN
-76
KN
-761.
83
KN
-77
KN
-77
1.73
1.40
-50
050
100
150
200
9600E9600E
9700E9700E
9800E9800E
9900E9900E
10000E10000E
10100E10100E
10200E10200E
10300E10300E
10400E10400E
10500E10500E
10600E10600E
10700E10700E
4700
Ele
v.
4700
Ele
v.
4800
Ele
v.
4800
Ele
v.
4900
Ele
v.
4900
Ele
v.
5000
Ele
v.
5000
Ele
v.
5100
Ele
v.
5100
Ele
v.
5200
Ele
v.
5200
Ele
v.
5300
Ele
v.
5300
Ele
v.
5400
Ele
v.
5400
Ele
v.
Cut
Au
Ass
ay H
isto
gram
Cut
Au
3 m
Com
posi
tes
Cut
Au
Inte
rsec
tion
Ave
rage
s
0.00
00.
300
0.30
00.
800
0.80
01.
000
1.00
01.
500
1.50
02.
000
2.00
03.
000
g/t A
u
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
25-5
Inm
et M
inin
g C
orp
ora
tion
Tro
ilu
s M
ine
Un
der
gro
un
d P
roje
ct,
Qu
ebec
Fig
ure
25
-5C
ross
Sec
tio
n 1
3,9
00
N
(Lo
ok
ing
Min
e G
rid
No
rth
)
RO
SCO
E PO
STLE
ASS
OC
IATE
S IN
C.
GE
OLO
GIC
AL
AN
D M
ININ
G C
ON
SU
LTA
NTS
55 U
nive
rsity
Ave
nue,
Sui
te 5
01
Toro
nto,
Ont
ario
M5J
2H
7(A
pril
2006
)
Ulti
mat
e P
it
Infe
rred
Lim
itIn
dica
ted
Lim
it
Zone
21
Zone
19
Zone
20
1.19
1.04
1.57
2.15
1.91
1.03
1.41
1.90
2.02
1.01
1.20
1.24
1.63
1.07
1.22
1.20
0.86
1.60
1.08
1.49
0.92
1.14
1.39
1.23
1.57
1.02
1.07
1.23
1.27
1.48
1.43
1.16
1.26
1.40
1.84
1.22
1.35
2.00
1.37
1.61
1.25
1.61
1.41
1.28
1.18
1.64
1.36
1.53
1.23
1.63
1.47
1.59
1.27
1.40
1.85
1.49
1.11
1.37
1.88
2.14
1.19
1.90
2.45
1.22
1.08
1.96
2.15
1.77
0.90
2.22
2.17
0.78
1.07
2.15
1.86
0.93
1.07
1.02
1.79
0.96
0.74
1.00
1.93
1.49
0.66
0.94
1.06
2.16
1.47
0.66
0.69
1.11
2.26
1.38
0.81
0.79
1.27
1.11
2.13
1.42
1.02
0.88
1.18
1.19
1.72
1.30
1.14
0.80
1.30
1.38
1.39
1.17
1.04
1.37
1.47
1.55
1.17
1.16
1.15
1.62
1.44
2.03
1.23
1.19
1.55
1.43
1.59
0.89
0.86
1.39
1.30
1.41
1.04
1.15
1.26
1.83
1.19
1.98
1.01
0.93
1.24
1.23
1.57
1.55
0.74
0.68
1.14
1.37
1.36
1.15
0.75
0.86
1.26
1.43
1.48
0.75
0.66
1.19
1.15
1.55
0.86
0.69
1.10
1.36
1.72
1.05
0.66
0.97
1.34
1.13
1.35
1.35
0.53
1.08
1.31
1.08
1.41
0.67
0.85
1.29
1.32
1.38
0.95
0.65
1.67
1.36
1.43
1.37
1.12
0.76
1.29
1.39
1.64
1.45
1.27
0.89
0.98
1.51
1.14
1.28
1.34
0.97
0.85
1.29
1.86
1.11
1.26
0.98
0.81
1.13
1.85
1.15
1.26
1.17
0.41
1.02
1.83
1.11
1.34
1.24
1.03
1.00
1.82
1.06
1.38
1.04
0.91
0.89
1.10
1.49
0.73
0.81
0.84
1.07
1.47
0.67
1.01
1.03
1.82
0.67
0.66
0.65
0.66
0.65
0.71
0.65
KN
-369
KN
-3691.58
KN
-511
KN
-511
1.35
KN
-630
KN
-630
1.39
1.24
KN
-653
KN
-653
0.90
KN
-660
KN
-660
1.31
KN
-665
KN
-665
KN
-667
KN
-667
1.03
KN
-676
KN
-676
1.15
-50
050
100
150
200
9600E9600E
9700E9700E
9800E9800E
9900E9900E
10000E10000E
10100E10100E
10200E10200E
10300E10300E
10400E10400E
10500E10500E
10600E10600E
10700E10700E
4700
Ele
v.
4700
Ele
v.
4800
Ele
v.
4800
Ele
v.
4900
Ele
v.
4900
Ele
v.
5000
Ele
v.
5000
Ele
v.
5100
Ele
v.
5100
Ele
v.
5200
Ele
v.
5200
Ele
v.
5300
Ele
v.
5300
Ele
v.
5400
Ele
v.
5400
Ele
v.
Cut
Au
Ass
ay H
isto
gram
Cut
Au
3 m
Com
posi
tes
Cut
Au
Inte
rsec
tion
Ave
rage
s
0.00
00.
300
0.30
00.
800
0.80
01.
000
1.00
01.
500
1.50
02.
000
2.00
03.
000
g/t A
u
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
25-6
Inm
et M
inin
g C
orp
ora
tion
Tro
ilu
s M
ine
Un
der
gro
un
d P
roje
ct,
Qu
ebec
Fig
ure
25
-6C
ross
Sec
tio
n 1
3,9
50
N
(Lo
ok
ing
Min
e G
rid
No
rth
)
RO
SCO
E PO
STLE
ASS
OC
IATE
S IN
C.
GE
OLO
GIC
AL
AN
D M
ININ
G C
ON
SU
LTA
NTS
55 U
nive
rsity
Ave
nue,
Sui
te 5
01
Toro
nto,
Ont
ario
M5J
2H
7
Ulti
mat
e P
it
Infe
rred
Lim
itIn
dica
ted
Lim
it
Zone
21
Zone
19
Zone
20
1.49
1.42
1.45
1.50
1.30
1.03
1.55
1.49
0.82
1.49
1.05
0.99
1.60
1.45
1.70
1.51
1.16
1.00
1.65
1.73
1.61
1.46
1.47
1.41
0.93
1.00
1.76
1.82
1.55
1.41
1.42
1.78
0.92
0.95
1.81
1.84
1.62
1.36
1.42
1.52
1.15
1.17
1.03
1.91
1.75
1.30
1.51
1.47
1.37
0.90
0.86
1.89
1.84
1.41
1.28
1.55
1.44
0.99
0.98
1.56
1.72
1.48
1.37
1.68
1.59
1.09
0.99
1.18
1.28
1.40
1.59
1.32
1.51
1.54
1.12
1.10
1.14
1.20
1.52
1.56
1.83
1.43
1.70
1.41
1.08
1.15
1.17
1.58
1.70
1.56
1.58
1.13
1.38
1.07
1.15
1.58
1.19
2.47
1.33
1.43
1.19
1.30
1.19
1.10
1.80
4.90
0.73
1.18
1.26
1.30
1.03
1.15
1.37
1.53
1.00
1.79
1.46
1.15
1.09
1.36
1.55
2.18
1.27
1.19
1.51
1.23
1.03
1.59
1.84
1.39
1.09
1.38
1.63
1.15
0.97
1.32
1.40
1.70
1.43
1.22
1.39
1.02
0.65
1.39
1.82
1.56
1.13
1.29
1.18
1.03
1.14
1.35
1.84
1.71
1.05
1.14
1.13
1.01
1.38
1.20
1.30
1.67
1.51
1.04
1.14
1.03
1.64
1.60
1.25
1.67
1.93
1.11
0.77
0.91
1.69
1.80
1.20
1.50
1.65
1.58
1.18
0.89
1.50
0.83
2.39
1.87
0.89
1.34
1.43
1.71
1.27
1.06
1.21
0.64
3.41
1.59
1.12
1.28
1.35
1.63
1.63
1.17
1.07
1.03
2.06
1.36
0.94
1.43
1.55
1.62
1.32
1.19
1.01
1.44
2.40
0.76
1.18
1.44
1.49
1.48
1.17
1.07
1.32
2.15
1.05
0.59
1.20
1.25
1.55
1.31
1.50
1.56
1.65
0.96
1.24
1.31
1.52
1.31
1.35
1.75
1.69
2.25
0.94
0.61
1.41
1.12
1.43
1.12
1.58
1.96
2.36
0.93
0.90
1.23
1.33
1.33
1.19
1.25
2.53
2.01
1.13
0.83
0.61
1.49
1.41
1.19
1.18
2.47
1.96
0.76
0.73
1.26
1.40
1.28
1.18
1.62
2.17
0.77
0.85
1.24
1.62
1.38
0.97
1.36
2.26
1.04
0.84
0.62
1.37
1.35
1.09
1.03
1.82
1.14
0.89
0.62
1.15
1.36
1.05
0.74
1.51
1.16
0.98
0.73
0.94
1.18
1.26
0.89
1.18
1.05
0.74
0.87
0.95
1.32
0.96
0.84
1.63
1.56
0.75
0.87
0.85
1.33
1.14
0.79
1.07
1.04
0.90
0.87
0.76
1.27
1.19
0.85
0.95
1.04
0.87
0.86
0.77
1.37
1.22
1.09
0.69
0.93
0.87
0.77
0.79
1.34
1.13
0.85
0.92
0.80
0.92
0.79
1.17
0.88
0.71
0.88
0.67
0.79
0.74
1.03
1.05
0.75
0.65
0.77
0.79
0.77
0.94
0.97
0.76
0.66
0.75
0.79
0.70
0.86
0.68
0.76
0.79
0.76
0.69
0.70
0.70
0.64
0.75
0.79
0.69
0.76
0.65
0.76
0.79
0.69
0.69
0.67
0.64
0.74
0.68
0.73
KN
-512
KN
-512
1.20
1.19
KN
-579
B
KN
-579
B
1.46
1.50
KN
-664
KN
-664
1.66
1.19
KN
-673
KN
-673
1.56 2.
46
KN
-677
KN
-677
1.07 1.
24
KN
-94
KN
-94
-50
050
100
150
200
9600E9600E
9700E9700E
9800E9800E
9900E9900E
10000E10000E
10100E10100E
10200E10200E
10300E10300E
10400E10400E
10500E10500E
10600E10600E
10700E10700E
4700
Ele
v.
4700
Ele
v.
4800
Ele
v.
4800
Ele
v.
4900
Ele
v.
4900
Ele
v.
5000
Ele
v.
5000
Ele
v.
5100
Ele
v.
5100
Ele
v.
5200
Ele
v.
5200
Ele
v.
5300
Ele
v.
5300
Ele
v.
5400
Ele
v.
5400
Ele
v.
Cut
Au
Ass
ay H
isto
gram
Cut
Au
3 m
Com
posi
tes
Cut
Au
Inte
rsec
tion
Ave
rage
s
0.00
00.
300
0.30
00.
800
0.80
01.
000
1.00
01.
500
1.50
02.
000
2.00
03.
000
g/t A
u
(Apr
il 20
06)
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
25-7
Inmet Mining Corporation
Troilus Mine Underground Project
Figure 25-7 5,100 m PlanROSCOE POSTLE ASSOCIATES INC.GEOLOGICAL AND MINING CONSULTANTS
55 University Avenue, Suite 501
Toronto, Ontario M5J 2H7
Ultimate Pit
Inferred LimitIndicated Limit
Zone 21
Zone 19Zone 20
1.72 1.00
1.34 1.99 1.56 1.54
1.87 1.80 1.28 1.39
1.79 1.83 1.84 1.14 1.28 0.99
2.04 2.45 1.16 1.24 0.99
2.03 2.05 1.23 1.32 1.54
1.33 1.82 2.38 1.33 1.29 1.51
1.40 1.84 1.87 0.97 1.38 1.55
1.14 1.80 1.64 1.29 1.53 1.54
1.13 1.73 1.63 1.30 1.52 1.51
1.53 1.13 1.64 1.56 1.23 1.50 1.47 1.32
1.54 1.24 1.55 1.38 0.98 1.26 1.45 1.40 1.13
1.55 1.39 1.36 1.22 1.28 1.40 1.31 1.15
1.38 1.59 1.46 1.22 1.30 1.34 1.23 1.15
1.63 1.29 1.18 1.31 1.31 1.14 1.14
1.38 1.24 1.64 1.29 1.12 1.15 1.20
1.61 1.41 1.36 1.81 1.27 1.09 1.14 1.18
1.40 1.59 1.32 1.51 1.54 1.12 1.10 1.14 1.20
1.42 1.64 1.36 1.54 1.72 1.38 1.05 1.10 1.21
1.46 1.57 1.40 1.50 1.30 1.32 1.20
1.50 1.51 1.53 1.40 1.48 1.31 1.28 1.15
1.50 1.52 1.53 1.44 1.47 1.35 1.28 1.30
1.61 1.41 1.28 1.18
1.61 1.32 1.00 1.01
1.55 1.31 1.08 1.04
1.46 1.30 1.18 1.19
1.35 1.22 1.09
0.98 1.24 1.13 1.01
0.86 1.09 1.25 0.99 1.24 0.97
0.80 1.09 1.19 0.84 1.11 1.35 1.11
0.80 1.17 1.49 0.91 0.99 1.50 1.07
1.09 1.16 1.70 0.93 0.95 1.58 1.08
1.65 0.87 1.06 1.86 1.04 0.97 1.81 1.17
1.75 0.88 0.85 1.75 1.02 0.99 2.13 1.24
1.94 1.05 1.05 1.81 1.04 0.99 1.79 1.86 1.43 1.33 1.36
1.86 1.51 1.16 1.62 1.06 1.10 1.75 2.00 1.69 1.36 1.36
1.95 1.90 1.07 1.43 1.18 1.70 2.17 1.89 1.36
1.31 1.98 2.30 1.03 1.33 1.26 1.65 2.16 1.91 1.44
1.32 2.04 2.33 1.08 1.29 1.57 1.61 2.19 1.80 1.52
1.35 1.98 1.93 1.58 1.33 1.67
1.42 1.80 1.65 2.16 1.50 1.67 1.42
1.64 1.66 2.87 1.88 1.65 1.41
1.47 1.05 3.09 2.05 1.60 1.41 1.08
1.09 1.29 1.15 3.29 1.96 1.59 1.41 1.07
1.16 1.13 1.75 3.01 1.85 1.59 1.41
1.46 1.14 1.23 2.05 2.51 1.34 1.66 1.19
1.45 1.10 1.03 1.81 2.31 1.15 1.61
1.46 1.11 0.68 1.72 1.99 1.12 1.45
1.50 1.09 0.67 1.77 2.01 1.13 1.42
1.41 1.15 1.01 1.77 2.08 1.35 1.56
1.43 1.37 1.34 1.72 1.93 1.69
1.42 1.77 1.56 1.41 2.08 2.08
1.43 2.09 2.02 1.15 2.14 2.52
1.58 2.34 2.35 0.68 2.16 2.84
1.62 2.18 2.13 1.01 2.17 2.92
1.67 2.11 1.91 1.43 2.22 3.10
1.76 1.95 1.55 1.60 2.18 2.97
1.82 2.05 1.48 1.58 2.19 2.88
2.02 1.28 2.30 1.91 2.57
1.98 1.36 2.67 2.40 2.54
1.50 3.28 2.59 2.24
2.02 1.73 4.26 2.63 1.79
1.86 1.28 5.81 2.58 1.02
1.87 1.30 5.77 2.78 1.32
2.05 1.87 4.25 2.73
2.12 2.09 3.44 2.85
2.08 1.75 3.05 2.78
2.10 1.57 2.73 2.47
2.01 1.76 2.24 1.91
1.80 1.70 2.24 1.75
1.67 1.35 2.42 1.63
1.51 1.30 2.46 1.47
1.49 1.64 2.25 1.45
1.91 1.46 1.65 2.11 1.45
1.80 1.52 1.49 1.95 1.50 1.23
1.80 1.58 1.12 1.98 1.46 1.22
1.81 1.61 0.94 2.05 1.46 1.22
1.79 1.55 1.22 1.83 1.54 1.23
1.75 1.44 1.19 1.68 1.50 1.26
1.64 1.37 1.19 1.44 1.49
1.56 1.30 1.07 1.32 1.47
1.49 1.25 0.96 1.22 1.41
1.45 1.24 0.86 1.15 1.27
1.22 0.83 1.15 1.21
1.15 0.90 1.13 1.09
1.12 0.97 1.13 1.19
1.01 1.11 1.48
1.03 1.03 1.48
1.05 1.27 1.49 1.06
1.43 1.54 1.06
1.62 1.73 1.80
1.91 1.73 1.06
KN-193 0.83
KN-29
1.42
KN-305 1.50
1.14
KN-306 1.16
1.69
KN-307 2.1
9
KN-319 1.99
KN-3201.4
3
KN-3212.2
8
KN-367
2.34KN-368A 1.
41
KN-369 1.58
KN-399 1.51 KN-40
KN-495 1.75
KN-496
2.80
KN-497
1.38
KN-498
1.38
KN-499
1.84
KN-5001.
41
1.46
KN-501
0.73
KN-504
1.39 KN-505
KN-5062.3
1
KN-508KN-509
2.04
KN-510
2.05KN-511
KN-512
1.19KN-513
KN-570KN-572
KN-575
KN-579B
KN-580
KN-581
KN-582
KN-583
KN-590 1.88
KN-591 1.46
KN-592 1.42
KN-593
KN-594
KN-599
KN-615
KN-622
KN-624
2.24
0.75
KN-625 1.09KN-626
1.55
KN-627 2.04
KN-628
2.04
KN-629
1.75
KN-630
1.39
KN-631KN-632
KN-633
KN-634
KN-648
KN-649
KN-650
KN-651
KN-652
KN-653
KN-654
1.631.1 0
KN-655
KN-656
KN-657
KN-658
KN-659
KN-660
KN-661
KN-662
KN-663
KN-664
1.66
KN-665
KN-666
KN-667
KN-668
KN-669
KN-670
KN-671
KN-672
KN-673
KN-674B
KN-675
KN-676
KN-677
KN-74
KN-75
1.61
KN-76
KN-771.7
31.
40
KN-85
KN-87
KN-88
KN-94
TN-31
TN-32
-50 0 50 100 150 200
9800
E9 8
00E
9900
E9 9
00E
1000
0E
1000
0E
1010
0E
1010
0E
1020
0E
1020
0E
1030
0E
1030
0E
1040
0E
1040
0E
1050
0E
1050
0E
1060
0E
1060
0E
1070
0E
1070
0E
13200 N 13200 N
13300 N 13300 N
13400 N 13400 N
13500 N 13500 N
13600 N 13600 N
13700 N 13700 N
13800 N 13800 N
13900 N 13900 N
14000 N 14000 N
14100 N 14100 N
14200 N 14200 N
Cut Au Assay HistogramCut Au 3 m CompositesCut Au Intersection Averages
0.000 0.3000.300 0.8000.800 1.0001.000 1.5001.500 2.0002.000 3.000
g/t Au
(April 2006)
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
25-8
Inmet Mining Corporation
Troilus Mine Underground Project
Figure 25-8 5,000 m PlanROSCOE POSTLE ASSOCIATES INC.GEOLOGICAL AND MINING CONSULTANTS
55 University Avenue, Suite 501
Toronto, Ontario M5J 2H7
Ultimate Pit
Inferred LimitIndicated Limit
Zone 21
Zone 19Zone 20
0.89 0.91 1.45
0.89 0.91 1.45
0.91 0.94 1.44 1.03
0.91 1.26 1.18 1.01
0.90 1.18 1.16 1.03 1.07
0.90 1.37 1.02 1.07 1.07
0.89 1.11 1.37 1.06 1.09
0.88 1.01 1.34 1.06 1.11 1.28
0.88 1.02 1.35 1.03 1.22 1.28
0.87 1.03 1.37 1.21 1.20 1.02
0.76 0.89 1.20 1.24 1.15 1.04 1.02
0.97 1.40 1.02 1.16 1.17 1.09 1.00 1.20
1.07 1.42 2.02 1.02 1.16 1.17 1.04 0.96 1.53
1.12 1.50 1.45 1.02 1.11 1.20 1.00 0.95 1.47
1.67 1.29 1.18 1.13 1.20 1.02 1.05 1.46
1.63 1.70 1.33 1.08 1.16 1.00 1.05 1.47
1.68 1.70 1.16 1.07 1.11 1.06 1.04 1.45 1.47
1.35 1.84 1.71 1.05 1.14 1.13 1.01 1.38
1.11 1.34 1.73 1.12 1.25 0.92 1.28
1.10 1.35 1.65 1.25 1.26 0.76 1.14
1.42 1.09 1.33 1.68 1.47 1.23 0.69 0.96
1.38 1.35 1.50 1.27 0.68 0.94 1.11
1.93 1.49 0.66 0.94 1.06
3.01 1.95 1.76 0.61 0.92
1.40 3.50 2.00 1.44 0.70
1.27 3.84 2.04 1.48
1.32 3.42 1.91 1.45
1.28 2.56 1.61 1.67 1.37
1.37 1.12 1.80 1.41 1.72 1.44
1.57 0.79 1.26 1.23 1.71
1.66 0.57 0.95 1.03 1.51
1.58 0.68 0.70 1.03 1.15 1.26
1.43 0.78 0.67 1.07 1.18 1.19 1.63 1.42
0.81 0.76 1.09 1.20 1.04 1.01 1.46 1.33
1.34 0.77 0.76 1.10 1.22 1.08 2.63 1.25 1.20 0.93
1.37 0.90 0.93 1.12 1.28 1.05 2.42 1.39 1.30 0.96
1.37 0.99 1.00 1.15 1.16 1.09 2.06 1.51 1.33 1.05
1.43 1.18 1.17 1.11 1.25 1.37 1.77 1.47 1.32 1.12
1.33 1.38 1.25 1.21 1.22 1.04 1.18 1.46 1.38 1.29
1.47 1.29 1.57 1.11 1.28 0.83 1.35 1.25
1.25 1.52 1.44 1.33 1.23 1.26 0.99 0.96
1.37 1.24 1.47 1.62 1.36 1.37 1.26 0.99 0.97
1.78 1.47 1.32 1.37 1.73 1.41 1.52 1.29 1.02
1.81 1.84 1.55 1.38 1.38 1.95 1.36 1.80 1.33
1.81 1.94 1.65 1.53 1.62 1.97 1.46 1.79 1.37
2.08 1.81 1.74 1.79 2.05 1.60 1.74
2.26 2.02 2.03 1.90 2.07 1.62 1.78
2.07 2.30 1.96 2.11 1.46 1.90
2.26 2.21 1.98 2.03 1.70 1.98
2.27 2.07 2.03 2.01 1.71 2.03
2.35 1.98 2.05 1.97 1.74
2.40 1.85 1.82 1.80 1.80
2.57 1.63 1.71 1.73
1.61 1.49 1.89 1.85 1.58
2.14 1.87 1.91 2.37 1.46 1.66 1.84
2.04 2.07 3.17 2.56 1.45 1.54 1.76
2.36 2.51 2.59 1.41 1.20 1.77
2.63 2.64 1.74 1.38 1.79
2.76 2.76 1.94 1.48 1.63
2.63 2.83 1.96 1.48 1.69
2.42 2.90 2.01 1.48 1.65
2.08 3.01 2.09 1.48 1.66
1.68 3.27 2.09 1.46 1.66
1.98 1.48 3.63 2.11 1.45 1.74
1.71 3.21 2.17 1.47 1.79
1.96 2.99 2.21 1.52
2.14 2.85 2.22 1.65
1.95 2.79 2.41 1.73
1.83 2.84 2.40 1.94
1.52 2.71 2.87 1.42
1.50 2.34 2.67 1.32
1.81 2.25 2.46 1.46
1.57 1.86 2.27 2.47
1.50 1.46 2.28 2.41
1.27 1.53 1.45 1.25 2.21 2.37 1.44
1.28 1.52 1.42 1.34 2.16 2.34
1.36 1.41 1.42 1.34 2.03 2.23
1.40 1.38 1.18 1.83 2.33 0.93
1.37 1.40 1.18 1.71 2.42 0.75
1.37 1.41 1.22 1.59 1.78
1.38 1.40 1.24 1.27
1.38 1.37 1.25 1.25
1.39 1.38 1.27 1.21
1.38 1.32 1.18
1.35 1.33 1.24 1.35
1.35 1.50 1.23 1.35
1.06 1.38 1.35
1.32 1.22 1.50
1.27 1.35 1.10
1.33 1.53 1.20
1.19
KN-495
KN-496
KN-497
KN-498
KN-499
KN-500
KN-501
KN-504
KN-572 1.04
KN-575 1.19
KN-579B
1.46
1.50
KN-580 0.85
KN-581
KN-582
KN-583
2.06
KN-590
KN-591 1.46
1.62
KN-592 1.42
KN-593 2.13
KN-594
KN-599
KN-6240.7
5
KN-625
KN-626
KN-627
KN-628 2.04
KN-629
1.75
KN-630
1.24
KN-6312.4
9
KN-632
KN-633
KN-634
KN-648 1.18
KN-649 1.32
KN-650 1.86
KN-651
1.97
KN-652
0.94
KN-653 0.90
KN-654
1.10
KN-655
1.84
KN-656
KN-657
KN-658
KN-659
KN-660
KN-661
KN-662
2.09
KN-663
0.69
KN-664
1.19
KN-665 2.27
KN-666
KN-667
KN-668
KN-669
KN-670
KN-671
KN-672
KN-673
KN-674B
KN-675
KN-676
KN-677
KN-76
KN-94TN-31
TN-32
43
-50 0 50 100 150 200
9800
E9 8
00E
9900
E9 9
00E
1000
0E
1000
0E
1010
0E
1010
0E
1020
0E
1020
0E
1030
0E
1030
0E
1040
0E
1040
0E
1050
0E
1050
0E
1060
0E
1060
0E
1070
0E
1070
0E
13200 N 13200 N
13300 N 13300 N
13400 N 13400 N
13500 N 13500 N
13600 N 13600 N
13700 N 13700 N
13800 N 13800 N
13900 N 13900 N
14000 N 14000 N
14100 N 14100 N
14200 N 14200 N
Cut Au Assay HistogramCut Au 3 m CompositesCut Au Intersection Averages
0.000 0.3000.300 0.8000.800 1.0001.000 1.5001.500 2.0002.000 3.000
g/t Au
(April 2006)
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
25-9
Inmet Mining Corporation
Troilus Mine Underground Project
Figure 25-9 4,900 m PlanROSCOE POSTLE ASSOCIATES INC.GEOLOGICAL AND MINING CONSULTANTS
55 University Avenue, Suite 501
Toronto, Ontario M5J 2H7
Ultimate Pit
Inferred LimitIndicated Limit
Zone 21
Zone 19Zone 20
0.59
1.07 0.60 0.56
0.94 1.37 0.58
0.94 1.09 0.62 0.60
0.94 0.97 0.62 0.57
0.95 0.91 0.61 0.57 0.60
0.95 1.22 0.61 0.61 0.58
0.91 1.27 0.58 0.68 0.59
0.97 1.37 1.30 0.94 0.60
0.97 1.37 1.32 0.64 0.60 0.81 1.09
0.95 1.37 1.31 0.63 0.87 1.19 2.84
0.58 1.37 1.27 0.70 0.95 1.25 2.73
1.01 1.16 1.24 1.27 0.72 1.09 1.40 2.46
1.16 1.22 1.54 1.28 1.14 1.28 1.59 2.37
1.16 1.44 1.46 1.67 1.23 1.47 1.81
1.41 1.25 1.67 1.21 1.58 2.04
1.40 0.90 1.65 1.26 1.62 1.98
0.94 0.61 1.41 1.12 1.43 1.12 1.58 1.96 2.36
1.30 0.93 0.61 1.38 1.43 1.10 1.48 1.77 1.99
1.27 0.94 0.61 1.50 1.04 1.32 1.57 1.84 2.36
1.23 0.96 0.60 1.04 0.92 1.42 1.66 1.60
1.20 0.97 1.21 1.01 0.93 1.34 1.23 1.59
1.19 1.98 1.01 0.93 1.24 1.23
1.40 1.74 1.03 0.91 1.23
1.56 1.53 1.03 0.90 1.22
1.63 1.42 0.92 0.98
1.66 1.27 0.87 1.02 1.23
1.79 1.22 0.79 1.12 1.44
1.73 1.73 1.14 0.97 1.32 1.59
1.67 1.74 1.15 0.99 1.47 1.75 1.76 1.53 0.76
1.67 1.81 1.15 1.31 1.50 1.86 2.01 1.64 1.50 0.76
1.79 1.43 1.43 1.45 1.99 2.00 1.62 1.47 0.80
1.76 1.40 2.00 1.95 1.69 1.60
1.52 1.90 1.90 1.68 1.60
2.46 1.47 1.69 1.74 1.67 1.02 1.45
3.27 1.40 1.47 1.66 1.02 1.44
2.05 2.35 4.46 1.39 1.33 0.80 1.03 1.41
1.74 2.37 3.19 1.36
1.58 2.12 2.47 1.36 1.29 1.47
1.49 1.61 1.96 2.09 1.44 1.24 1.43 1.24
1.52 1.64 1.84 1.91 1.46 1.18 1.22 1.20
1.59 1.49 1.66 1.70 1.82 1.31 1.19 1.29
1.54 1.46 1.69 1.48 1.81 1.22 1.21
1.48 1.41 1.71 1.41 1.85 1.10 1.19
1.39 1.34 1.70 1.44 1.79 1.22
1.31 1.24 1.59 1.54 1.70 1.46
1.24 1.17 1.48 1.78 1.99 1.68
1.17 1.07 1.32 1.78 2.35 1.84
1.11 1.00 1.20 1.88 2.63 1.93
1.44 1.09 0.92 1.22 1.89 2.84 1.94
1.32 1.22 0.91 1.22 1.90 2.94 1.83
1.35 1.21 0.91 1.22 1.90 2.95 1.81
1.54 1.17 0.92 1.15 1.89 2.85
1.50 1.63 1.32 0.91 1.06 1.84 2.72 2.11
1.65 1.80 1.57 1.03 1.01 1.59 2.47
1.65 1.68 1.82 1.88 1.10 1.00 1.38
1.60 2.04 2.20 1.06 1.02 1.10
2.02 2.33 1.02 1.08 0.82
2.19 2.29 1.06 1.07 0.88
2.10 2.15 1.24 1.02 1.01
1.86 1.97 1.39 1.03 1.11
1.91 1.84 1.38 1.06 1.16
1.90 1.74 1.49 1.15 1.19
1.58 1.64 1.50 1.19 1.28
1.42 1.55 1.60 1.25 1.15
1.36 1.31 1.67 1.23 1.16
1.40 1.20 1.67 1.22
1.06 1.51 1.50 1.65 1.27
1.06 1.53 1.67 1.60 1.34
1.83 1.07 0.96 1.27 1.63 1.70 1.56 1.40
2.37 1.70 0.83 0.94 1.29 1.66 1.72 1.52 1.43
2.16 1.52 0.79 0.84 1.23 1.54 1.69 1.48
1.96 1.33 0.68 0.80 1.26 1.50 1.67
1.79 1.21 0.71 0.82 1.23 1.50
1.77 1.18 0.78 0.81 1.23
1.14 0.84 0.87 1.22
0.83 0.87 0.93 1.19 1.34
0.91 0.99 1.19 1.19 1.37
0.93 1.02 1.28 1.39 1.37
0.95 1.10 1.36 1.39
1.01 1.11 1.36 1.36
1.61 1.07 1.41 1.41
1.61 1.17 1.39 1.17
1.26 1.31 0.89 1.13
1.36 1.39 1.20
1.36 1.34 1.40 1.44
1.35 1.34 1.41 1.25
1.35 1.41 1.24
1.11 1.21 1.32
1.38 1.47
KN-495
KN-5721.0
4
KN-575
KN-579B
KN-580 0.98
KN-581 1.05
KN-582 1.56
KN-5832.0
6 KN-592
KN-593
KN-594
KN-599
KN-630
KN-631
KN-6481.1
8
KN-649
KN-6501.8
6
KN-651
KN-652
KN-653
KN-655
KN-656 1.50
KN-657 1.53
KN-658 1.62
KN-659 0.92
KN-660 1.31
KN-661 2.17
KN-663 1.01
KN-665
KN-666
KN-667
1.03
KN-668
1.03KN-669
1.32
KN-670
KN-671
1.60
KN-672
1.54
KN-673 1.56
2.4 6
KN-674B
KN-675 1.49
KN-676 1.15
KN-677 1.07
KN-76
1.83
KN-94TN-31
TN-32
-50 0 50 100 150 200
9800
E9 8
00E
9900
E9 9
00E
1000
0E
1000
0E
1010
0E
1010
0E
1020
0E
1020
0E
1030
0E
1030
0E
1040
0E
1040
0E
1050
0E
1050
0E
1060
0E
1060
0E
1070
0E
1070
0E
13200 N 13200 N
13300 N 13300 N
13400 N 13400 N
13500 N 13500 N
13600 N 13600 N
13700 N 13700 N
13800 N 13800 N
13900 N 13900 N
14000 N 14000 N
14100 N 14100 N
14200 N 14200 N
Cut Au Assay HistogramCut Au 3 m CompositesCut Au Intersection Averages
0.000 0.3000.300 0.8000.800 1.0001.000 1.5001.500 2.0002.000 3.000
g/t Au
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
(April 2006)
25-10
Inmet Mining Corporation
Troilus Mine Underground Project
Figure 25-10 4,800 m PlanROSCOE POSTLE ASSOCIATES INC.GEOLOGICAL AND MINING CONSULTANTS
55 University Avenue, Suite 501
Toronto, Ontario M5J 2H7
Ultimate Pit
Inferred LimitIndicated Limit
Zone 21
Zone 19Zone 20
0.75
0.81 0.80
0.80 0.80
0.79 0.80 0.67
0.79 0.80 0.68 0.67
0.76 0.80 0.68 0.67
0.65 0.76 0.69 0.67
0.92 0.74 0.80 0.92 0.73 0.66
0.79 0.78 0.80 0.98 0.89 0.66
0.79 0.78 0.80 0.95 0.82 1.69
0.80 0.78 0.80 0.96 1.27 1.49
0.80 0.78 0.80 0.98 1.31 1.48 2.82
0.80 0.78 0.80 0.86 1.32 1.49 2.42
0.79 0.78 0.80 1.04 1.06 1.50 2.12
0.78 0.80 0.93 0.96 1.45 1.78
0.74 0.80 0.81 1.01 0.93 1.47
0.65 0.77 1.19 1.05 0.78 1.44
1.04 0.90 0.87 0.76 1.27 1.19 0.85 0.95
1.05 0.89 0.87 1.27 1.26 0.86
1.08 0.95 0.89 1.24 0.90 0.93 1.36
1.08 1.01 0.88 0.78 0.87 0.94 1.41 1.35 1.52
1.02 0.92 0.79 0.91 0.97 1.47 1.10 1.49
1.45 1.27 0.89 0.98 1.51 1.14
1.29 1.45 1.22 0.91 0.98 1.53
1.48 1.22 0.92 0.98
1.48 1.24 0.94 1.09
1.48 1.23 0.80 1.14
1.59 1.56 1.32 0.81 1.21
1.62 1.56 1.46 0.74 1.27
1.60 1.66 1.11 0.81 1.31 1.76 2.22 1.91
1.60 1.53 1.23 1.40 1.76 2.19 1.77 2.21 1.94 1.70
1.64 1.48 1.77 2.21 2.22 1.95 1.80 2.19 2.04 1.75
1.49 1.82 2.30 1.76 2.26 1.86 2.17 2.11
2.03 2.44 2.77 2.28 1.73 1.54
1.49 2.15 2.60 2.96 2.30 1.69
1.47 2.16 2.67 2.81 2.19 1.69
1.67 2.16 2.63 2.79 2.11
1.14 1.63 2.14 2.42 2.77
1.74 1.51 1.75 2.11 2.41 2.77
1.75 1.22 2.00 1.79 2.08 2.63 2.79 1.97
0.71 1.54 1.97 1.80 2.08 2.67 2.81
1.23 1.50 2.09 1.92 2.02 2.63 3.19
1.22 1.50 2.17 1.97 2.05 2.56
1.21 1.72 2.21 2.03 2.01 2.47
1.20 1.71 2.28 2.06 1.92 2.33
0.96 1.49 2.27 2.11 1.75
1.00 1.23 2.24 2.10 1.71 2.10
0.94 1.10 2.04 2.06 1.78 2.07
0.90 1.05 1.89 2.03 1.88 2.18
1.13 0.82 0.83 1.71 2.02 1.44 1.94
1.60 1.18 0.73 0.88 1.57 1.86 1.46
1.60 1.19 0.68 0.90 1.51 1.70
1.21 0.65 1.06 1.59 1.67
1.60 1.19 0.67 0.95 1.52 1.53 1.76
1.60 1.15 0.72 0.85 1.39 1.54 1.57
1.60 1.14 0.76 0.82 1.32 1.54 1.54
0.99 1.09 0.80 0.78 1.28 1.55
1.12 0.82 0.82 1.27 1.55
1.09 0.84 0.87 1.28
1.21 0.75 0.92 1.28
1.16 0.77 1.08 1.31 1.58
1.12 0.92 1.06 1.24 1.56
1.06 1.00 1.04 1.31 1.54
1.20 1.10 1.00 1.31 1.80
1.21 1.10 1.08 1.27 1.79
1.19 1.06 1.20 1.26 1.17
1.03 1.23 0.91 1.33 1.33
1.28 1.07 1.27 0.69 1.43 1.25
0.61 0.66 0.80 1.29 1.07 1.27 0.67 1.44 1.25
0.63 0.61 0.68 1.33 1.13 1.20 1.37 0.92
1.13 0.54 0.66 0.69 1.20 1.14 1.25
1.12 0.67 0.65 0.70 1.26 1.09 1.25
1.06 0.67 0.64 0.70 1.08 0.91
1.03 0.67 0.62 0.70 0.77
0.66 0.68 0.60 0.71 0.77
0.68 0.59 0.71 0.77
0.60 0.71 1.16
0.62 0.70 1.15 2.00
0.70 1.18 2.00 1.40
0.70 1.39 2.01 1.40
0.69 0.86 2.02
0.68 0.68 1.08 1.40
0.73 1.18 1.28 1.50
1.09 1.20 1.33 1.55
1.21 1.41 1.57
1.21 1.49 1.74
1.32 1.57 2.05
2.10 1.08
KN-580
KN-581
KN-582
KN-594 1.09
1.16
KN-599 1.06
KN-656
KN-657
KN-658
KN-659
KN-666
2.17
KN-667
KN-668
1.03
KN-669KN-670
1.90
KN-671
KN-672
2.02
KN-673
KN-674B
0.69KN-6751
.49
KN-6761.1
5
KN-6771.2
4
KN-76
TN-31
0.80
-50 0 50 100 150 200
9800
E9 8
00E
9900
E9 9
00E
1000
0E
1000
0E
1010
0E
1010
0E
1020
0E
1020
0E
1030
0E
1030
0E
1040
0E
1040
0E
1050
0E
1050
0E
1060
0E
1060
0E
1070
0E
1070
0E
13200 N 13200 N
13300 N 13300 N
13400 N 13400 N
13500 N 13500 N
13600 N 13600 N
13700 N 13700 N
13800 N 13800 N
13900 N 13900 N
14000 N 14000 N
14100 N 14100 N
14200 N 14200 N
Cut Au Assay HistogramCut Au 3 m CompositesCut Au Intersection Averages
0.000 0.3000.300 0.8000.800 1.0001.000 1.5001.500 2.0002.000 3.000
g/t Au
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
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25-11
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
26-1
26 APPENDIX 3 COMPOSITE CONTROL TABLE AND LONGITUDINAL SECTIONS
TABLE 26-1 Z87 UNDERGROUND COMPOSITE CONTROL INTERVALS - DECEMBER 2005Inmet Mining Corporation
HorizontalHole From To Length Thickness* Au Cut Au** Cu Ag Easting Northing Elevation
Count Number (m) (m) (m) (m) (g/t Au) (g/t Au) (%) (g/t Au) (m) (m) (m)Lens 19
1 KN-193 283.00 291.00 8 9 0.83 0.83 0.18 2.84 10,334 13,835 5,1382 KN-306 382.00 392.00 10 12 1.69 1.69 0.25 3.69 10,283 13,792 5,0653 KN-500 341.00 368.00 27 31 1.46 1.46 0.14 1.56 10,277 13,750 5,0654 KN-510 225.00 245.00 20 23 2.05 2.05 0.01 0.58 10,318 13,760 5,1195 KN-591 477.00 503.00 26 31 1.62 1.62 0.10 1.72 10,251 13,784 5,0026 KN-594 620.00 640.00 20 21 1.16 1.16 0.08 1.00 10,030 13,448 4,7757 KN-624 465.00 485.00 20 24 0.75 0.75 0.06 1.31 10,262 13,744 5,0468 KN-663 554.00 570.00 16 19 1.01 1.01 0.10 1.73 10,216 13,783 4,9369 KN-672 596.00 614.00 18 20 2.10 2.02 0.12 1.43 10,121 13,832 4,82310 KN-77 302.95 309.33 6.38 7 1.40 1.40 0.07 1.18 10,309 13,795 5,107
Averages 17 20 1.44 1.43 0.10 1.55
Lens 201 KN-110 202.55 221.55 19 22 1.29 1.29 0.13 2.17 10,312 14,044 5,2052 KN-193 230.00 249.00 19 22 2.09 2.04 0.16 1.96 10,305 13,838 5,1763 KN-29 269.25 287.73 18.48 21 1.42 1.42 0.11 3.73 10,273 13,996 5,1434 KN-305 334.00 370.40 36.4 41 1.14 1.14 0.21 1.79 10,259 13,980 5,0805 KN-306 318.00 357.00 39 45 1.20 1.16 0.12 1.45 10,251 13,794 5,1026 KN-307 305.00 341.65 36.65 42 2.25 2.19 0.22 1.15 10,232 13,593 5,1037 KN-319 276.00 310.00 34 45 1.99 1.99 0.21 1.13 10,248 13,395 5,1358 KN-320 221.00 260.20 39.2 51 1.43 1.43 0.19 1.02 10,274 13,352 5,1639 KN-321 260.10 289.90 29.8 35 2.28 2.28 0.17 1.24 10,244 13,439 5,13910 KN-367 267.30 297.10 29.8 35 2.34 2.34 0.23 1.16 10,247 13,557 5,13411 KN-368A 258.00 309.00 51 60 1.41 1.41 0.18 1.66 10,251 13,734 5,13912 KN-369 288.00 325.10 37.1 42 2.80 1.58 0.39 3.80 10,263 13,892 5,11213 KN-399 279.00 291.80 12.8 15 1.51 1.51 0.16 2.45 10,271 14,039 5,13014 KN-40 214.45 223.45 9 11 1.63 1.63 0.13 2.68 10,281 14,102 5,20315 KN-495 272.00 290.00 18 22 1.75 1.75 0.33 2.03 10,225 13,420 5,10016 KN-496 302.00 326.00 24 27 3.41 2.80 0.26 1.44 10,227 13,500 5,10417 KN-497 344.00 374.00 30 35 1.38 1.38 0.14 0.70 10,210 13,550 5,07818 KN-498 198.00 261.00 63 67 1.38 1.38 0.17 1.04 10,229 13,650 5,09619 KN-499 293.00 356.00 63 73 2.57 1.84 0.16 1.47 10,246 13,700 5,08020 KN-500 272.00 317.00 45 51 1.41 1.41 0.22 1.65 10,240 13,750 5,11221 KN-501 239.00 272.00 33 36 0.73 0.73 0.11 1.25 10,273 13,860 5,13522 KN-504 254.00 287.00 33 39 1.39 1.39 0.18 0.92 10,254 13,493 5,15423 KN-505 188.00 212.00 24 29 1.37 1.37 0.24 1.67 10,277 13,557 5,17724 KN-506 194.00 224.00 30 35 2.31 2.31 0.25 1.41 10,259 13,602 5,14825 KN-508 176.00 218.00 42 50 3.39 3.25 0.38 2.64 10,273 13,662 5,16726 KN-509 197.00 236.00 36 44 2.04 2.04 0.26 1.49 10,250 13,653 5,12327 KN-510 159.00 192.00 33 38 1.25 1.25 0.12 1.32 10,281 13,758 5,16628 KN-511 201.00 225.00 24 26 1.35 1.35 0.18 1.72 10,275 13,875 5,17029 KN-512 233.00 266.00 33 37 1.19 1.19 0.21 2.03 10,293 13,951 5,14730 KN-513 224.00 248.00 24 28 1.32 1.32 0.19 3.80 10,293 14,024 5,17031 KN-572 504.00 532.00 28 33 1.04 1.04 0.10 1.55 10,151 13,598 4,95732 KN-575 442.00 498.00 56 65 1.19 1.19 0.14 1.87 10,203 13,735 4,99833 KN-579B 476.00 510.00 34 40 1.50 1.50 0.41 3.21 10,187 13,953 4,97234 KN-580 496.00 524.00 28 32 0.98 0.98 0.16 2.43 10,156 14,024 4,92735 KN-581 504.00 532.00 28 32 1.05 1.05 0.14 2.06 10,149 13,857 4,93636 KN-582 536.00 568.00 32 36 1.56 1.56 0.09 1.78 10,132 13,765 4,89337 KN-583 476.00 518.00 42 49 4.13 2.06 0.18 3.36 10,144 13,665 4,95738 KN-590 346.00 394.00 48 57 1.88 1.88 0.16 1.51 10,202 13,588 5,07439 KN-591 411.00 461.00 50 59 1.46 1.46 0.16 2.10 10,211 13,788 5,03840 KN-592 402.00 472.00 70 83 1.42 1.42 0.14 1.91 10,184 13,693 5,02841 KN-593 416.00 452.00 36 41 2.13 2.13 0.21 1.77 10,159 13,496 5,00242 KN-594 572.00 610.00 38 39 1.09 1.09 0.10 1.26 10,014 13,450 4,81143 KN-599 576.00 610.00 34 36 1.06 1.06 0.08 1.23 10,028 13,603 4,81344 KN-622 1.50 17.00 15.5 21 1.17 1.17 0.35 4.18 10,308 13,327 5,19545 KN-624 411.00 445.00 34 41 2.98 2.24 0.27 2.89 10,224 13,746 5,07446 KN-625 290.00 310.00 20 27 1.09 1.09 0.15 2.05 10,234 13,300 5,11547 KN-626 318.00 356.00 38 51 1.55 1.55 0.25 1.91 10,230 13,368 5,10648 KN-627 394.00 416.00 22 26 2.04 2.04 0.27 1.76 10,209 13,461 5,06849 KN-628 396.00 448.00 52 62 2.04 2.04 0.29 1.93 10,199 13,664 5,04250 KN-629 412.00 446.00 34 40 1.95 1.75 0.18 8.25 10,221 13,855 5,05251 KN-630 440.00 458.00 18 21 1.24 1.24 0.14 1.50 10,237 13,916 5,03652 KN-631 399.00 416.00 17 23 2.49 2.49 0.31 1.89 10,183 13,397 5,04453 KN-634 243.00 257.00 14 19 1.60 1.60 0.40 3.49 10,286 13,224 5,15654 KN-648 484.00 512.00 28 37 1.18 1.18 0.08 1.40 10,106 13,344 4,94855 KN-649 410.00 432.00 22 29 1.32 1.32 0.18 2.42 10,158 13,335 5,03056 KN-650 504.00 526.00 22 29 1.86 1.86 0.16 0.85 10,115 13,421 4,94657 KN-651 463.00 491.00 28 32 1.97 1.97 0.24 2.20 10,147 13,519 4,976
26-2
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TABLE 26-1 Z87 UNDERGROUND COMPOSITE CONTROL INTERVALS - DECEMBER 2005Inmet Mining Corporation
HorizontalHole From To Length Thickness* Au Cut Au** Cu Ag Easting Northing Elevation
Count Number (m) (m) (m) (m) (g/t Au) (g/t Au) (%) (g/t Au) (m) (m) (m)58 KN-652 444.00 480.00 36 42 0.94 0.94 0.12 2.40 10,177 13,826 4,99259 KN-653 484.00 510.00 26 31 0.90 0.90 0.12 1.56 10,211 13,896 4,99560 KN-654 404.00 446.00 42 49 1.10 1.10 0.28 2.90 10,221 14,004 5,04361 KN-655 478.00 506.00 28 37 1.91 1.84 0.15 1.68 10,126 13,393 4,97062 KN-656 526.00 550.00 24 27 1.50 1.50 0.14 1.16 10,093 13,468 4,90363 KN-657 521.00 549.00 28 32 1.53 1.53 0.08 1.94 10,104 13,553 4,91364 KN-658 500.00 546.00 46 52 1.62 1.62 0.16 2.21 10,120 13,694 4,91965 KN-659 484.00 516.00 32 40 0.92 0.92 0.13 17.99 10,064 13,392 4,92366 KN-660 504.00 530.00 26 29 1.31 1.31 0.14 1.98 10,148 13,905 4,92667 KN-661 514.00 546.00 32 37 2.19 2.17 0.22 2.69 10,130 13,619 4,92768 KN-662 484.00 526.00 42 49 2.09 2.09 0.21 2.69 10,174 13,653 4,99169 KN-663 482.00 524.00 42 50 0.69 0.69 0.09 1.34 10,174 13,785 4,97870 KN-664 468.00 484.00 16 19 1.19 1.19 0.20 2.37 10,231 13,956 5,03271 KN-665 464.00 488.00 24 29 2.29 2.27 0.12 2.99 10,191 13,874 5,00972 KN-666 574.00 596.00 22 23 2.17 2.17 0.17 1.38 10,066 13,750 4,82473 KN-667 520.00 556.00 36 40 1.03 1.03 0.08 1.41 10,115 13,907 4,88674 KN-668 560.00 584.00 24 26 1.03 1.03 0.07 1.26 10,052 13,534 4,84475 KN-669 516.00 560.00 44 49 1.32 1.32 0.12 1.98 10,090 13,620 4,89476 KN-670 556.00 588.00 32 34 1.90 1.90 0.29 3.16 10,053 13,674 4,83677 KN-671 528.00 548.00 20 24 1.60 1.60 0.08 1.52 10,026 13,350 4,86378 KN-672 528.00 570.00 42 46 1.69 1.54 0.09 1.49 10,091 13,830 4,87179 KN-673 532.00 542.00 10 11 2.46 2.46 0.25 2.91 10,125 13,963 4,88680 KN-674B 584.00 602.00 18 20 0.69 0.69 0.03 0.91 9,944 13,374 4,78781 KN-675 522.00 574.00 52 55 1.49 1.49 0.06 0.96 10,022 13,437 4,86082 KN-676 546.00 582.00 36 38 1.15 1.15 0.09 1.74 10,078 13,895 4,84283 KN-677 552.00 566.00 14 15 1.24 1.24 0.17 2.31 10,068 13,946 4,84284 KN-74 213.16 242.18 29.02 33 2.58 2.58 0.26 1.36 10,273 13,598 5,18085 KN-75 229.67 280.22 50.55 57 1.61 1.61 0.15 1.27 10,282 13,706 5,15086 KN-76 479.57 526.20 46.63 43 1.83 1.83 0.17 1.61 10,138 13,803 4,87687 KN-77 235.00 271.00 36 40 2.20 1.73 0.17 2.56 10,278 13,799 5,15188 KN-85 217.73 251.96 34.23 39 0.94 0.94 0.13 0.90 10,276 13,503 5,17289 KN-87 207.00 243.03 36.03 47 2.03 2.03 0.20 1.06 10,273 13,388 5,17890 KN-88 217.08 223.28 6.2 8 0.83 0.83 0.10 0.66 10,272 13,298 5,18491 TN-31 645.00 654.00 9 9 0.66 0.66 0.11 2.17 10,011 14,016 4,73492 TN-32 404.00 410.00 6 7 1.43 1.43 0.10 2.60 10,141 14,176 5,006
Averages 32 37 1.66 1.57 0.18 2.10
Lens 211 KN-110 181.30 194.05 12.75 15 1.52 1.52 0.11 1.72 10,297 14,045 5,2232 KN-29 226.63 259.12 32.49 38 2.16 1.90 0.20 2.16 10,249 13,996 5,1703 KN-305 307.00 325.00 18 20 1.88 1.50 0.12 1.30 10,237 13,983 5,1094 KN-399 245.50 259.60 14.1 16 2.04 2.04 0.31 3.18 10,250 14,040 5,1565 KN-40 194.10 201.40 7.3 9 2.09 2.09 0.29 6.19 10,267 14,101 5,2186 KN-512 191.00 203.00 12 13 1.20 1.20 0.25 4.03 10,263 13,951 5,1907 KN-513 182.00 212.00 30 34 1.54 1.54 0.16 2.24 10,269 14,024 5,2008 KN-579B 438.00 450.00 12 14 1.46 1.46 0.09 1.85 10,155 13,953 5,0099 KN-580 450.00 460.00 10 11 0.85 0.85 0.15 2.46 10,123 14,026 4,97210 KN-630 378.00 398.00 20 24 1.39 1.39 0.22 2.43 10,193 13,915 5,07911 KN-654 382.00 394.00 12 14 1.63 1.63 0.11 9.71 10,197 14,004 5,07112 KN-664 418.00 444.00 26 31 2.04 1.66 0.07 3.76 10,197 13,955 5,06213 KN-673 506.00 522.00 16 18 1.56 1.56 0.13 1.74 10,112 13,963 4,90514 KN-677 514.00 526.00 12 12 1.07 1.07 0.18 2.03 10,051 13,947 4,87715 TN-31 609.00 630.00 21 20 0.80 0.80 0.11 1.56 10,002 14,015 4,762
Averages 17 23 1.60 1.50 0.16 2.80
** High gold assays cut to 10 g/t Au.
* Gemcom approximate horizontal thickness estimates based on mineralization attitude of 360°/-56°W for Lens 19, Lens 20 north of 13,435N, and Zone 21, and 360°/-48°W for Zone 20 south of 13,435N.
26-3
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
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v.
4900
Ele
v.
4900
Ele
v.
5000
Ele
v.
5000
Ele
v.
5100
Ele
v.
5100
Ele
v.
5200
Ele
v.
5200
Ele
v.
5300
Ele
v.
5300
Ele
v.
5400
Ele
v.
5400
Ele
v.
0.00
00.
300
0.30
00.
800
0.80
01.
000
1.00
01.
500
1.50
02.
000
2.00
03.
000
G/T
AU
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
26- 4
Inm
et M
inin
g C
orp
ora
tion
Tro
ilu
s M
ine
Un
der
gro
un
d P
roje
ct,
Qu
ebec
Fig
ure
26
-2
Ho
rizo
nta
l T
hic
kn
ess
Co
nto
urs
Lo
ng
itu
din
al
Sec
tio
n (
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e G
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RO
SCO
E PO
STLE
ASS
OC
IATE
S IN
C.
GE
OLO
GIC
AL
AN
D M
ININ
G C
ON
SU
LTA
NTS
55 U
nive
rsity
Ave
nue,
Sui
te 5
01
Toro
nto,
Ont
ario
M5J
2H
7(A
pril
2006
)
Ulti
mat
e P
it
Infe
rred
Indi
cate
d
1K
N-1
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-50
050
100
150
200
13100N13100N
13200N13200N
13300N13300N
13400N13400N
13500N13500N
13600N13600N
13700N13700N
13800N13800N
13900N13900N
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14200N14200N
4700
Ele
v.
4700
Ele
v.
4800
Ele
v.
4800
Ele
v.
4900
Ele
v.
4900
Ele
v.
5000
Ele
v.
5000
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v.
5100
Ele
v.
5100
Ele
v.
5200
Ele
v.
5200
Ele
v.
5300
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v.
5300
Ele
v.
5400
Ele
v.
5400
Ele
v.
0.00
00.
300
0.30
00.
800
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01.
000
1.00
01.
500
1.50
02.
000
2.00
03.
000
G/T
AU
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
26- 5
Inm
et M
inin
g C
orp
ora
tion
Tro
ilu
s M
ine
Un
der
gro
un
d P
roje
ct,
Qu
ebec
Fig
ure
26-3
H
ori
zon
tal
Th
ick
nes
s x
Cu
t A
u C
on
tou
rs
Lo
ng
itu
din
al
Sec
tio
n (
Lo
ok
ing
Min
e G
rid
Wes
t)
RO
SCO
E PO
STLE
ASS
OC
IATE
S IN
C.
GE
OLO
GIC
AL
AN
D M
ININ
G C
ON
SU
LTA
NTS
55 U
nive
rsity
Ave
nue,
Sui
te 5
01
Toro
nto,
Ont
ario
M5J
2H
7(A
pril
2006
)
Ulti
mat
e P
it
Infe
rred
Indi
cate
d
1K
N-1
10
2K
N-1
93
1K
N-2
9
1K
N-3
051
KN
-306
2K
N-3
07
2K
N-3
19
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N-3
20
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N-3
21
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N-3
671
KN
-368
2K
N-3
692
KN
-399
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0
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953
KN
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971
KN
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2K
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99
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1K
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041
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2K
N-5
063
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2K
N-5
09
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101
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-511
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121
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-513
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72
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801
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93
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1K
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22
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N-6
24
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N-6
25
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N-6
26
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N-6
27
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N-6
282
KN
-629
1K
N-6
302
KN
-631
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34
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49
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N-6
50
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N-6
511
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N-6
53
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N-6
54
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N-6
55
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N-6
562
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N-6
581
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N-6
602
KN
-661
2K
N-6
62
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N-6
63
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64
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N-6
65
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N-6
66
1K
N-6
67
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N-6
68
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N-6
69
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702
KN
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N-6
722
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-673
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N-6
74
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75
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N-6
761
KN
-677
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4
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5
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6
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71
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N-8
71
KN
-88
1TN
-31
1TN
-32
10
10
10
10
10
1 0
2
0
2
0
20
20
20
2
0
20
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20
20 20
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20
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30
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30
30
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40
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40
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40
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40
40
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40
40
40
40
40
40
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40
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4 0
40
40
40
40
40
40
4 0
4
0
4 0
50
50
50
50
50
50 5
0
5050
5 0
50
5050
50
5 0
50
5050
50
50
50
50
50
50
50
5 0
50
5
5 0
50
50
5 0
50
6
0
6 060
60
60
60
60
6 0
60
60
60
60
60
60
60
60
60
6 0
60
60
60
60
60
60
60
60
6 0
60
60
60
60
60
7 0
70
70
70
70
7 0
7
0
70
7 0
70
70
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70
70
70
70
7 0
7 0
70
70
70
8
0
80
8 0
80
8 0
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80
80
80
80
80
8
0
80
90
90 9
0
90
9090
90
9 0
9 09 0
10 0
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100
100
1
100
100
1 1 0
1 10
110
1 10
110 1 2 0
120
12
0
120
15
15
15
15
1 5
15
15
15 15
1 5
15
-50
050
100
150
200
13100N13100N
13200N13200N
13300N13300N
13400N13400N
13500N13500N
13600N13600N
13700N13700N
13800N13800N
13900N13900N
14000N14000N
14100N14100N
14200N14200N
4700
Ele
v.
4700
Ele
v.
4800
Ele
v.
4800
Ele
v.
4900
Ele
v.
4900
Ele
v.
5000
Ele
v.
5000
Ele
v.
5100
Ele
v.
5100
Ele
v.
5200
Ele
v.
5200
Ele
v.
5300
Ele
v.
5300
Ele
v.
5400
Ele
v.
5400
Ele
v.
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
26- 6
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
27-1
27 APPENDIX 4 VARIOGRAPHY FIGURES
FIGURE 27-1 DOWN HOLE VARIOGRAM - ALL 3 M COMPOSITES
Range [m]
Gam
ma
(H)
0 4 8 12 16 20 24 28 32 36 400
0.500
1.000
1.500
Troilus Underground - 3 m CompositesDown Hole Variogram (090/-60) , 2 m lag, Spread = 20, Variance=1.04
Software By GemcomROSCOE POSTLE ASSOCIATES INC.
1) Nugget Effect( 0.30)
*2) Spherical( 4.00, 0.46)
*
3) Spherical( 14.00, 0.28)
FIGURE 27-2 ALONG STRIKE VARIOGRAM - ALL 3 M COMPOSITES
Range [m]
Gam
ma
(H)
0 20 40 60 80 100 120 140 160 180 2000
0.500
1.000
1.500
Troilus Underground - 3 m CompositesAlong Strike Variogram (360/-00) , 30 m lag, Spread = 15, Variance=1.04
Software By GemcomROSCOE POSTLE ASSOCIATES INC.
1) Nugget Effect( 0.30)
2) Spherical( 60.00, 0.45)3) Spherical( 80.00, 0.43)
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
27-2
FIGURE 27-3 ALONG STRIKE VARIOGRAM – LENS 20 3 M COMPOSITES
Range [m]
Gam
ma
(H)
0 20 40 60 80 100 120 140 160 180 2000
0.3
0.6
0.9
1.2
1.5
Troilus Underground - 3 m Composites - Z20Along Strike Variogram (360/-00) ,30 m lag, Spread = 20, Variance=1.05
Software By GemcomROSCOE POSTLE ASSOCIATES INC.
1) Nugget Effect( 0.30)
2) Spherical( 15.00, 0.32)3) Spherical( 80.00, 0.54)
FIGURE 27-4 DOWN DIP VARIOGRAM – LENS 20 3 M COMPOSITES
Range [m]
Gam
ma
(H)
0 30 60 90 120 150 180 210 240 270 3000
0.500
1.000
1.500
Troilus Underground - 3 m Composites - Z20Down Dip Variogram (270/-60) , 30 m lag, Spread = 10, Variance=1.05
Software By GemcomROSCOE POSTLE ASSOCIATES INC.
1) Nugget Effect( 0.30)2) Spherical( 55.00, 0.62)
3) Spherical( 90.00, 0.21)
ROSCOE POSTLE ASSOCIATES INC. www.rpacan.com
27-3
FIGURE 27-5 ALONG STRIKE VARIOGRAM – LENS 20 BLASTHOLES
Range [m]
Gam
ma
(H)
0 20 40 60 80 100 120 140 160 180 2000
0.500
1.000
1.500
Troilus Underground - Z20 BlastholesAlong Strike Variogram (360/-00) , 10 m lag, Spread = 10, Variance=1.13
Software By GemcomROSCOE POSTLE ASSOCIATES INC.
1) Nugget Effect( 0.40)
2) Spherical( 15.00, 0.32)3) Spherical( 125.00, 0.57)
FIGURE 27-6 DOWN DIP VARIOGRAM – LENS 20 BLASTHOLES
Range [m]
Gam
ma
(H)
0 20 40 60 80 100 120 140 160 180 2000
0.500
1.000
1.500
Troilus Underground - Z20 BlastholesDown Dip Variogram (270/-56) , 10 m lag, Spread = 10, Variance=1.13
Software By GemcomROSCOE POSTLE ASSOCIATES INC.
1) Nugget Effect( 0.30)
2) Spherical( 25.00, 0.41)3) Spherical( 80.00, 0.42)