Report of Gridding and Magnetic Surveys - Ontarioenvironmental and other consulting geophysical...
Transcript of Report of Gridding and Magnetic Surveys - Ontarioenvironmental and other consulting geophysical...
Report of Gridding and Magnetic Surveys
On the
Munro Property
Munro and Beatty Townships, Ontario
Larder Lake Mining Division
Claims: 3016569 4241466
For
Big Red Diamond Corporation
October 31, 2010 Matthew Johnston
Timmins, Ontario
1226 Gatineau Blvd.
Timmins, Ont. P4R 1E3
Table of Contents
Page No.
1.0 Introduction 2
2.0 Location and Access 2
3.0 Summary of 2010 Geophysical and Line Cutting Program 2
4.0 Discussion of Results 5
5.0 Conclusions and Recommendations 6
Statement of Qualifications
Appendices
Appendix A Geophysical Instruments and Survey Methods
List of Maps
Maps Scale
Total Field Magnetic Survey - Contours and Posted Data 1:5000
-2-
1.0 Introduction
The Munro property of Big Red Diamond Corporation consists of several
unpatented mining claims, where recent work was performed on mining claims numbered
3016569 and 4241466 located in Munro and Beatty Townships, Larder Lake Mining
Division. During October 2010, a program of gridding and geophysical surveys was
conducted over a portion of this claim group. The geophysical program consisted of total
field magnetic surveying. Hussey Geophysics Inc, from Timmins, Ontario carried out
the magnetometer survey; while Archer Explorer of Edmonton, Alberta completed the
line cutting and chaining. The line cutting and geophysical surveys were completed
between October 6th
and October 28th
, 2010. These surveys were carried out in order to
map any discrete anomalies that may be associated with structural deformation, or
economic concentrations of massive or disseminated sulphide mineralization associated
with gold mineralization.
2.0 Location and Access
The Munro Property is located approximately 16 kilometres east of the Town of
Matheson, Ontario. The claim group straddles the Beatty / Munro Township line in the
Larder Lake mining division. A notable landmark is the old Johns-Mansville waste
tailings pile, behind which the property is located. Access to the property is via highway
101 east from Matheson along highway 101 for approximately 15 kms., then north along
logging roads for approximately 2 km. A trail off of the main logging road served to
access the grid (see figures 1 and 2).
3.0 Summary of 2009 Geophysical and Line Cutting Program
The line-cutting on the Munro Property grid totalled 16.66 kilometres, which
consisted of a 0.75 km. long baseline cut at an azimuth of 90 degrees. Grid lines were cut
and picketed as shown on the grid map and ranged in length from 1100 metres on the east
end of the grid to 1600 metres in the central areas. The grid lines were chained every 25
-5-
metres with pickets chained at 25-meter intervals along all lines. The lines were spaced
and cut at 50 meter intervals.
The geophysical program consisted of total field magnetic surveying. The total
magnetic field survey, using a Gem GSM-19 magnetometer, totaled 16.66 kilometers
with readings collected every 12.5 meters along all lines.
The geophysical data has been presented on plan maps at a scale of 1:5000,
showing the contours and postings of the magnetic data (see maps in pocket).
A description of the instrument and survey method can be found in appendix A.
4.0 Discussion of Results
The magnetic survey on the Munro grid indicates a relatively quiet magnetic
background with magnetic values ranging between 55955 and 56766 nT. The background
magnetic field strength is 56184 nT. The overall magnetic pattern in the grid area
suggest a northwest-southeast strike for the underlying lithology; and is disrupted by
several linear to ellipsoidal shaped anomalous magnetic highs, located between 800S and
600N. These anomalies are clearly evident on the contour map. These four anomalies are
easily identified on the contour map and have been labeled as magnetic anomalies D, E,
F, and G. The anomalies display magnetic amplitudes of up to approximately 600 nT
above background. These magnetic anomalies may reflect underlying mafic lithology
which often gives rise to this type of magnetic anomaly. Anomalies D, E, and F may also
reflect diabase dikes which are prevalent in this area. Magnetic anomaly G displays a
magnetic signature similar to what might be expected from a kimberlite pipe.
In addition to magnetic anomalies D, E, F, and G; several fault zones have been
interpreted within the Munro grid. These anomalies may represent major lithological
contacts or structural anomalies which may be significant in this area. These anomaly
locations are shown on the contour map.
No other significant magnetic anomalies were mapped over the Munro grid.
-6-
5.0 Conclusions and Recommendations
The magnetic survey over the Munro grid was successful in mapping magnetic
anomalies that may be prospective for further mineral exploration. It may be possible to
test these anomalies with a program of trenching or prospecting in order to determine
their source lithology.
It is possible that a program of induced polarization surveying would aid in better
defining any mineralized zones, which may have disseminated accumulations of sulphide
or graphitic minerals. These zones are often prospective for gold deposits. A limited
program of either dipole-dipole or pole-dipole IP surveying with an 'a' spacing of 25
meters and reading levels of n=1 to 6 is recommended in order to further evaluate the
Munro property if sufficient other geological evidence exists to support continued
exploration of the Munro claim group.
Any existing geological, diamond drilling or geochemical information that may
exist in the mining recorder assessment files should be investigated and compiled prior to
further exploration of the Munro property in order to accurately assess the area of the
current geophysical survey and to determine the most effective follow-up exploration
method for these anomalies.
Respectively Submitted,
Matthew Johnston
Statement of Qualifications
This is to certify that: MATTHEW JOHNSTON I am a resident of Timmins; province of Ontario since June 1, 1995. I am self-employed as a Consulting Geophysicist, based in Timmins, Ontario. I have received a B.Sc. in geophysics from the University of Saskatchewan; Saskatoon, Saskatchewan in 1986. I have been employed as a professional geophysicist in mining exploration, environmental and other consulting geophysical techniques since 1986.
Signed in Timmins, Ontario, this October 31, 2010
Survey Theory - Total Field Magnetics
Magnetic Survey
Theory:
The magnetic method is based on measuring alteration in the shape and magnitude of the
earth's naturally occurring magnetic field caused by changes in the magnetization of the
rocks in the earth. These changes in magnetization are due mainly to the presence of the
magnetic minerals, of which the most common is magnetite, and to a lesser extent
illuminate, pyrrhotite, and some less common minerals. Magnetic anomalies in the earth's
filed are caused by changes in two types of magnetization: (1) Induced, caused by the
magnetic field being altered and enhanced by increases in the magnetic susceptibility of the
rocks, which is a function of the concentration of the magnetic minerals. (2) Remanent
magnetism is independent of the earth's magnetic field, and is the permanent magnetization
of the magnetic particles (magnetite, etc.) in the rocks. This is created when these
particles orient themselves parallel to the ambient field when cooling. This magnetization
may not be in the same direction as the present earth's field, due to changes in the
orientation of the rock or the field. The unit of measurement (variations in intensity) is
commonly known as the Gamma which is equivalent to the nanotesla (nT).
Method:
The magnetometer, a GEM Systems GSM-19 with an Overhauser sensor measures the
Total Magnetic Field (TFM) perpendicular to the earth's field (horizontal position in the
polar region). The unit has no moving parts, produces an absolute and relatively high
resolution measurement of the field and displays the measurement on a digital lighted
display and is recorded (to memory). Initially, the tuning of the instrument should agree
with the nominal value of the magnetic field for each particular area. The Overhauser
procession magnetometer collected the data with a 0.2 nanoTesla accuracy. The
operator read each and every line at a 12.5 m intervals with the sensor attached to the top
of four (56cm), aluminum tubing sections. The readings were corrected for changes in the
earth's magnetic field (diurnal drift) with a similar GSM-19 magnetometer, acting as a
stationary base station which automatically read and stored the readings at every 15
seconds. The data from both units was then downloaded to PC and base corrected values
were computed.
50 0 50 100 150 200 250
metres
NAD83 / UTM zone 17N
Scale 1:5000
BIG RED DIAMOND CORPORATION
MUNRO PROJECTTOTAL FIELD MAGNETIC SURVEY - CONTOURS
OCOTBER 6- 28 - 2010
MUNRO & BEATTY TOWNSHIPS - LARDER LAKE MINING DIVISIONCLAIM NOS. 3016569 4241466
CONTOUR INTERVAL = 20, 100 nTINSTRUMENT: GEMS SYSTEMS GSM-19 MAGNETOMETER
SURVEYED BY: HUSSEY GEOPHYSICS INC.
56055
56080
56090
56105
56115
56120
56130
56135
56140
56145
56150
56155
56160
56165
56170
56175
56180
56185
56190
56195
56200
56205
56215
56225
56235
56240
56250
56260
56265
56280
56305
56380
Total Field MagneticsnT.
Line Kilometeres Surveyed: 16.66
Interpreted Linear Magnetic Anomaly / Anomaly Axis
Interpreted Magnetic Lineament/Fault
5381200N
5381400N
5381600N
5381800N
5382000N
5382200N
5382400N
5382600N
5382800N
5381200N
5381400N
5381600N
5381800N
5382000N
5382200N
5382400N
5382600N
5382800N
552800E 553000E 553200E 553400E 553600E
552800E 553000E 553200E 553400E 553600E
L-1050 E
L-1050 E
L-1000 E
L-1000 E
L-950 E
L-950 E
L-900 E
L-900 E
L-850 E
L-850 E
L-800 E
L-800 E
L-750 E
L-750 E
L-700 E
L-700 E
L-650 E
L-650 E
L-600 E
L-600 E
L-550 E
L-550 E
L-500 E
L-500 E
B0 N
MUNROBEATTY
56040
56060
56060
56080
561 2 0
02165
02165
5 6 1 4 0
561 4 0
5 6 140
56140
04165
5 6140
0 6 1 6 5
5 6 1 6 0
56160
56160
5 6180
0 8 1 6 5
0 8 1 6 5
56220
5 6240
56240
0 4 2 6 5
56240
56260
56260
56280
56340
56 4 4 0
56000
5 6 1 0 0
00165
56100
0 0 1 65
00165
00265
56200
5 6 20 0
56200
56200
56300
5640 0
1190353
3016569
4224280
4241466
D
E
F
G
50 0 50 100 150 200 250
metres
NAD83 / UTM zone 17N
Scale 1:5000
BIG RED DIAMOND CORPORATION
MUNRO PROJECT
TOTAL FIELD MAGNETIC SURVEY - POSTED DATA
OCOTBER 6- 28 - 2010
MUNRO & BEATTY TOWNSHIPS - LARDER LAKE MINING DIVISIONCLAIM NOS. 3016569 4241466
MAGNETIC REFERENCE FIELD: 56000 nT.INSTRUMENT: GEMS SYSTEMS GSM-19 MAGNETOMETER
SURVEYED BY: HUSSEY GEOPHYSICS INC.
Line Kilometeres Surveyed: 16.66
5381200N
5381400N
5381600N
5381800N
5382000N
5382200N
5382400N
5382600N
5382800N
5381200N
5381400N
5381600N
5381800N
5382000N
5382200N
5382400N
5382600N
5382800N
552800E 553000E 553200E 553400E 553600E
552800E 553000E 553200E 553400E 553600E
L-1050 E
L-1050 E
L-1000 E
L-1000 E
L-950 E
L-950 E
L-900 E
L-900 E
L-850 E
L-850 E
L-800 E
L-800 E
L-750 E
L-750 E
L-700 E
L-700 E
L-650 E
L-650 E
L-600 E
L-600 E
L-550 E
L-550 E
L-500 E
L-500 E
B0 N
MUNROBEATTY
1190353
3016569
4224280
4241466
561085608656080561015615056129561005606656075561015650456107560945608256064560885611956107560975609956119561405614956127561855610756126561275612156122561405612956139561145613856148561495614056141561445614356158561105616556152561655617256173561815617656192561805618256220562215621356228562495626756283563285635556447565765610356317562055614956160562065622056227562325623156225562265622256223562175622456201562135622256210562125622056238562365623956246562505625356263562715627856289562785626656263 56314
56306
56289562815626156265562625625856247562505624756241562445621256202561985619556204561745619456204562045620856209561925621456219562185620956201561935620156197561905618856213562315630356361564455635756250562295621756209562135617856195561705618256194561745617156166561615615956145561415615356144561455614456146561545615156179561495612656122561325614556123561365618656118561155612156115560955612556137561145609056120560965608556080560695611256083561215610556113560865610956122561325610656082
56037
56101
561035612256177563285634756164560655606356086561105611256131561525614556131561275613656126561235612956118561115608456116561485613156123561415613856140561355613156139561565613556148561445614156144561625617256158561635616556179561805616556198561965620756216562185622656257562925637356398563365631456276562385621556204561955618056177561765618256214562035619856202561995619356192562125621156218562165622256215562295624056251562525625356260562645627156266562675626756263
56274
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5625656266
56268
56264
56262562615625956256562515624856249562585626656263562595623456220
5621456210562105620256192561925618056177561795617956178561825618556188561895619156189561875619656204562235626256390566545675056602564745638856310562545623056193561885618556164561635618256190561875617556156561575615056181561635615856146561525614956152561505615356179561115612456154561365614756091561455608856111561255613456143561645615656134561085611656113561025611556110561255614656174561735617756163561195610956091560895611456111561035608156072560625605956053560555606656079561115616156218562545625656226561935615856140561135609056067560455602156005
55973
55955
5610256112561145612356131561495617056202562135619256160561345613056110560855607756072560805608356094560955609256102561075611156123561275615256147561425614456151561605616756163561495612156119560975611156134561365616456153561285614056137561485655156102561915612956128561395612856139561435613956132561615615656159560665615856166561585616856166561575616756182561665617256169561885620856207562275624256286563695646056496565235652256407562825621056183561785617756181561855619056190561945618956186561845617856180561755617456175562105623156222562245622556230562415624556249562445624756246562455625856265562585626256265
562655625456272562835628056281
5627656260562665626456259
562555625156259562485624656247562575625156231562335623856221562355620756185561965619156197562045619256184561905620156189561855618756192561935619156203562035617856161561645617556182561675613956153562235600156114561855616556196561685618656174561965619056202561815618656177561705616056152561695616756169561415614256175561515618456166561375613756138561285611356112561265616756164561665615556172561635615956122561155611856134561295613756149561385614256160561665616056158561355613056124560795612656120561235611956116561125609856090560885608356089560885608756086561105612556144561555617156200562505623556193
56123
5605056113
561265612156108560885606256053560335604556059560665608856129561465617256214562185623356250562275619956172561555615756162561765617056168561535614756134561165613356143561605613856123561765618756206562005619856170561565615356140561845614556117561325613656155561355613156146561535616756139561505615656169561385615756168561545616256179561915624256156561865618056146561995616256172560655613256184561685616556174561885619056180561695615556159561825618556197561685620156185561895618156181561805618256171561835617456172561925619456203562305623456233562405623556236
562445626056251562435623456221562085620456208562105621256195561905619256188561855618956196561945618756185561715616756159561775618056194562015618156168561765617356176561815618056174561245622656198561655617056170561945610556148561295616056159561435615256150561635613756145561355613356140561245613656129561355637356127561525619756192561835614356145561725618556195561935616256144561385612856122561185610356135561445615856150561505613456134561315615656212563255645956560565585647456348562725620456174561655611556068560715607056050560435601956030
56066
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5612956166
5627256383565625670456767566205636956231561445611956111561115611456129561315615456145561425614356143561385613656117561385613256139561455619956314561685617856238562225620256158561465613856124561355614056137561255614356139561335614356142561795616356148561585616156143561615616256147561505618356099561515615256196561845614556160561625614356162561615614756184561865618456182561695618356179561925619556204562085620956205562025619956195561885618256194562145620556241
56242
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56255
562525624556234
56251
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56270
56260
56266
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562565624656227561945620756196561925618456195561975618556172561765616656180561705617756146561835617956182561655618456181561615616756181561815617556157561585615056227561625612956175561855615056136561595612856125561685616456162561625614956146561465615956134561405614356156561355615956202561805624356248562145625356184561695620156194561585613756134561235613356147561765617156183561645614656122561025608356058560545606556093
56087
5607956122561365614856141
5616156183561955618956178
56262562415617856179561935629156324563155638056349561285615356157561485614756119561285616656201561775617156173561695618556167561635616156178561865614156138561455615356170561825618256168561645616356175561725617156177561655618856177561885619056168561945619456196561955621756201562065623756228562345625156270562895629056285562825627856279
56278
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56259562585624956240
56235
5622656238562425625056259563045633756267562145621156214562815643956647566675651756434564295638956321563125628556260562325622056206562155621156187561855618556179561845617756164561635617656178561815619956206562045623456179561555614356131561395616756185561955617856152561595616756172561465621756291562815661256252561435615656135561915623456191561625619156240563195636956293562535618656159561515613856136561305611656101561085610456092
56093
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56263
56179
56211
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56178
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