Navarre's emerging copper belt in western Victoria, Australia
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Transcript of Navarre's emerging copper belt in western Victoria, Australia
SCIENCE DISCOVERY GROWTH
Navarre Minerals – Emerging Copper Belt in Western Victoria
Melbourne Mining Club – Cutting Edge Series Presentation
17 September 2013
Navarre Minerals
Limited ABN 66 125 140
1045
40-44 Wimmera
Street, PO Box 385, Stawell
VIC 3380 Australia
Tel: +61 (0)3 5358 8625
Email: info@navarre.
com.au Website:
www.navarre.com.au
Forward-looking statement & disclaimer The information contained in this presentation has been provided by Navarre Minerals Limited (Navarre) and other sources identified herein. No representation or warranty, express or implied, is made by Navarre or any adviser or any of their respective affiliates or representatives as to the accuracy or completeness of such information. Nothing contained in this presentation is or shall be relied upon as, a promise or representation by any of Navarre or any such advisers, their respective affiliates or representatives.
The information contained in this presentation is for informational purposes only and is not a recommendation as to whether to invest in Navarre shares. The information contained in this presentation is not investment or financial product advice and is not intended to be used as the basis for making an investment decision. The presentation has been prepared without taking into account the investment objectives, financial situation or particular needs of any particular person. Unless otherwise specified, data and tables set out in this presentation are based on Navarre management estimates.
No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions and conclusions contained in this presentation. To the maximum extent permitted by law, none of Navarre or its directors, or any of their employees or agents, nor any other person accepts any liability, including, without limitation, any liability arising out of fault of negligence, for any loss arising from the use of the information contained in this presentation. In particular, no representation or warranty, express or implied is given as to the accuracy, completeness or correctness, likelihood of achievement or reasonableness or any forecasts, projections, prospects or returns contained in this presentation nor is any obligation assumed to update such information. Such forecasts, prospects or returns are by their nature subject to significant uncertainties and contingencies. Past performance is no guarantee of future performance.
This presentation includes “forward-looking statements” within the meaning of securities laws of applicable jurisdictions. Forward-looking statements can generally be identified by the use of forward-looking words such as “may”, “will”, “expect”, “intend”, “plan”, “estimate”, “anticipate”, “believe”, “continue”, “objectives”, “outlook”, “guidance” or other similar words, and include statements regarding certain plans, strategies and objectives of management and expected financial performance. These forward-looking statements involve known and unknown risks, uncertainties and other factors, many of which are outside the control of Navarre and any of its officers, employees, agents or associates. Actual results, performance or achievements may vary materially from any projections and forward-looking statements and the assumptions on which those statements are based. Readers are cautioned not to place undue reliance on forward-looking statements and Navarre assumes no obligation to update such information.
The contents of this presentation must not be photocopied, reproduced, disclosed or distributed to any other person without the prior written consent of Navarre.
The information in this presentation that relates to Exploration Results, Mineral Resources and Exploration Potential is based on information compiled by Mr Wessley Edgar. Mr Edgar is an employee of Navarre Minerals Limited, is a member of the Australasian Institute of Mining and Metallurgy and is a Competent Person under the definition of the 2012 JORC Code. The Exploration Potential described in this Presentation is conceptual in nature, and there is insufficient information to establish whether further exploration will result in the determination of a Mineral Resource. Mr Edgar consents to the publication of this information in the form and content in which it appears.
The information in this presentation that relates to exploration and production targets refers to targets that are conceptual in nature, where there has been insufficient exploration to define a Mineral Resource and it is uncertain if further exploration will result in the determination of a Mineral Resource.
The information on porphyry copper and gold exploration targets in this presentation are based on a conceptual range of targets as follows:
Tonnage range: 300 million to >500 million tonnes
Grade range: 0.3% Cu to 2.0% Cu & 0.2 g/t Au to 2 g/t Au
Metal: 1Mt contained copper & >0.5 million ounces of gold
ASX Code: NML www.navarre.com.au 2 of 22
Contents
1. Overview
2. Goal & strategy
3. Projects
4. Corporate
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Overview Navarre Minerals is a leading Victorian based resources company exploring for gold & copper within emerging and proven mineral corridors
Exposure to gold & copper growth in four mineral corridors
Extensive tenement position
Three major 100%-owned projects:
Eclipse copper-gold porphyry prospect, under-explored emerging Andean-style magmatic arc
Lexington is a copper-molybdenum porphyry prospect near existing JORC oxide copper resource (Thursday’s Gossan)
Tandarra gold prospect is part of an emerging gold district under cover
$1.9 million cash position (July 25, 2013)
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Goal & strategy The science of discovery
GOAL
To define a maiden mineral resource & to become a low cost mineral producer through exploration success
FOCUS
Large porphyry copper prospects
Eclipse
Lexington
List of 50 targets generated & prioritised to meet goal
Advancing the shallow open pit potential at Tandarra
Bulk sample treatment of existing drill residues to quantify contained gold distribution
DISCIPLINE
Dynamic methodical approach using innovative multi geo-scientific exploration techniques Financial discipline to conserve cash and create value
DISCOVER
Leverage off substantial accumulated recent geological data & project knowledge for exploration planning Collaborate with government geological agencies (eg. Geological Survey of Victoria) Prioritise exploration effort within budget parameters
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Western Victoria Copper Project Multiple, largely untested targets in 130kms of volcanic rocks
Tenements Black Range Copper (Cu), Gold (Au) EL4590 and EL5426
Stavely Copper (Cu), Gold (Au) EL5425
Mitre Copper (Cu), Gold (Au) EL4973
Mineralisation Style Bulk tonnage porphyry copper (Cu) and gold (Au), VHMS (Cu, Pb, Zn, Au), epithermal base metals & gold
Deposit Analogues Cadia, Pebble, Grasberg, Mt Lyell
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Eclipse New geological thinking leads to recognition of porphyry
PREVIOUS EXPLORATION & TARGETING WAS BASED ON A VHMS MODEL
Eclipse geology similar to Mt Read Volcanics of NW Tasmania, host to Mt Lyell and several VHMS deposits such as Rosebery & Hellyer
276.1m @ 0.3% Zn & 0.1g Au/t in DD10BR001 from 1.3m depth to end of hole originally interpreted to be footwall alteration to VHMS system (see 2010 model below)
NEW PORPHYRY MODEL BETTER FITS GEOLOGY
Demagnetised geophysical feature co-incident with gravity low & anomalous base metal geochemistry
Massive zone of zinc mineralisation in DD10BR001 is common feature in margins of porphyry copper-gold deposits
Search for mineralisation on west-side of DD10BR001
Porphyry case studies reveal optimum method for detecting buried deposits
Copper-rich drill core from DD10BR001
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What is a porphyry?
Porphyry copper deposits are
large, relatively low-grade,
intrusion-related deposits that can
be mined using mass mining
techniques
Typical economic porphyry
deposits have reserves of
between 500Mt & several billion
tonnes of 0.3 - 2% copper & 0.2 –
2 g/t gold
Porphyry copper deposits are
usually associated with gold
and/or molybdenum
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Porphyry Model Metal zoning & alteration patterns
After Kouzmanov, 2012
Cross-section geology
Lexington erosional position?
Eclipse erosional position?
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Miga Arc speculated to be a subduction-related Andean-style magmatic arc related to the younger Macquarie Arc of central NSW
Miga Arc similar to Mt Read Volcanics based on age & rock type
Miga Arc is dominantly concealed below thin cover and remains under-explored – no deep drill holes
Magmatic arc systems are highly prospective for porphyry copper, VHMS & epithermal-style base metal and gold deposits, eg. Cadia, North Parkes
Fore-arc subduction
complex
Miga Arc – cross-section, after Cayley et al, 2011
Miga Arc Victoria’s new emerging copper belt
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Western Victoria Copper Project - Miga Arc Under-explored volcanic province containing large porphyry Cu-Au targets
130 kms of under-explored pacific rim style volcanic belt with no deep drill holes
Near established infrastructure (power, port, rail, highways, workforce & processing facility)
Porphyry-style copper mineralisation confirmed by drilling at Eclipse and Lexington prospects
>276 m of zinc + gold + pyrite hydrothermal alteration in DD10BR001 indicates proximity to porphyry core at Eclipse
Sole diamond hole at Lexington intersects primary copper up to 0.6% and Mo up to 800ppm in altered granodiorite host of Cambrian age
Navarre activities completed:
26 drill holes for 2,200m at Eclipse
Detailed aeromagnetic survey at Eclipse
Soils geochemistry, EM & IP geophysics surveys on Eclipse
Review of recently uncovered historic data for Lexington
Reconnaissance mapping, rock chip & soils at Lexington
50 targets developed for follow-up
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Eclipse prospect Partially concealed porphyry copper-gold system
Scale potential – large target area (2900m by 800m) demagnetised feature co-incident with gravity low & anomalous base metal geochemistry
Previous shallow high-grade intercepts include*:
15m @ 0.7% Cu, 1.9% Zn, 0.8g Au/t (RC92GM52)
13m @ 0.7% Cu, 0.2g Au/t, inc. 2m @ 2.2% Cu (RC92GM55)
2.0m @ 3.0% Cu, 2.0g Au/t (RC93GM65)
Alteration assemblages provide vectors to mineralised core
Graben feature a prime target for a porphyry
* See Navarre’s December 2010 prospectus Corbett, 1998
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Eclipse prospect Conceptual porphyry copper-gold model
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Eclipse prospect High-quality targets identified with soils geochemistry
First pass soils geochemistry generates high-quality anomalies containing an overlap of elements considered indicative of a porphyry core
Infill soils program underway to refine anomalies
Induced Polarisation (IP) geophysics follow-up
Drill design
Sn W
As
Mo Pb
Br
Bi
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Lexington prospect Porphyry copper-molybdenum system
Historic information reveals:
Previous exploration confirms porphyry system 15km south of Thursday’s Gossan supergene copper resource
Shallow air-core drilling outlines 500m x 700m >0.1% Cu halo with minor native copper
Co-incident circular magnetic low feature detected in geophysics
Sole diamond hole confirms:
Porphyry-style mineralisation & alteration *
Granodiorite host rock *
Primary copper up to 0.6% *
Molybdenum up to 800ppm *
* Source: GSV GEDIS Borehole System (open file data supplied by North Exploration) 15 of 22
Granodiorite porphyry core
Lexington Field reconnaissance highlights potential
Epithermal-style quartz
Sulphide in surface rocks Highly anomalous geochemistry
& associated quartz veining in NE quadrant of demagnetised zone
MAGNETIC IMAGE - LEXINGTON DIORITE COMPLEX
Pyrite
VICT3D1
Chalcocite
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2013-2014 Exploration Program Testing the porphyry copper and gold potential
WESTERN VICTORIA COPPER PROJECT
ECLIPSE
Infill soils
IP geophysics surveys
Drill targeting and planning
LEXINGTON
Assess historic information
Surface geochemical surveys
Geophysics surveys – magnetics & IP
Drill targeting and planning
REGIONAL
Regional reconnaissance geology & soils program over geophysical targets
Drill design
Eclipse drilling – March 2013
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Gold projects – update
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Bendigo North - Tandarra Testing the shallow open pit potential
Bendigo-style quartz reef gold under shallow cover
Multiple lines of quartz reef
29 targets detected by CSAMT geophysics
14 confirmed by AC drilling to contain anomalous gold
limited RC drill testing on 2 lines confirms continuity of mineralised structures
Scale potential from multiple shallow quartz reefs, open in most directions
Bulk sample testing of RC drill residues to assist understanding of gold grades
Potential for open pit and underground mining
Sample treatment plant – concentrate Sample plant - loading samples ACT151 gold 19 of 22
Navarre Board & Management Experience & results
Highly experienced leadership team with combined 60 years of exploration and operational experience in Victoria and track-record of bringing projects into production
Kevin Wilson - Chairman
John Dorward - Non-Executive Director
Colin Naylor - Non-Executive Director
Geoff McDermott - Managing Director
Jane Nosworthy - Company Secretary
Wess Edgar - Exploration Manager
Jodi Ford - Accountant
Marlene Erard - Office Manager
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Corporate
ASX code: NML (listed 31 March 2011)
Shares: 59.6 million
Share Price: AUD$0.035 (@ 13 September 2013)
Market Capitalisation: $2.1 million (AUD$0.035)
Major Shareholders: Crocodile Gold Corp. (owner of Fosterville & Stawell Gold Mines)
9%
Board & Management 25%
Top 20 shareholders 58%
Navarre Minerals Limited Share Price
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Geoff McDermott Navarre Minerals Limited
40 – 44 Wimmera Street Stawell
VIC Australia 3380 Tel: 03 5358 8625
Website: www.navarre.com.au
Email: [email protected]
For more information contact
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