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TALISMAN MINING LIMITED — Capital/Financing Update 2014
Oct 19, 2014
65926_rns_2014-10-19_21bca67b-f458-44b7-b4c1-683eb3466d53.pdf
Capital/Financing Update
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20[th] October 2014
Talisman to Acquire Sinclair Nickel Project
COMPANY SNAPSHOT
Key Points
Board of Directors
Alan Senior Non-Executive Chairman
Gary Lethridge Managing Director
Graeme Cameron Technical Director
Brian Dawes Non-Executive Director
Karen Gadsby Non-Executive Director
Contact Details
6 Centro Avenue Subiaco, Western Australia, 6008
Telephone: +61 8 9380 4230
Facsimile: + 61 8 9382 8200
Email: [email protected]
Website:
www.talismanmining.com.au
Capital Structure
Shares on Issue: 131,538,627 (TLM)
Options on Issue: 8,250,000 (Unlisted) ASX: TLM
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Talisman has reached a binding agreement with Xstrata Nickel Australasia Operations Pty Ltd, a subsidiary of Glencore, to acquire the Sinclair Nickel Project in WA for $8M plus a deferred $2M payment contingent upon a recommencement of mine production.
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Sinclair was placed on care & maintenance in August 2013.
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Sinclair is an advanced, high quality nickel sulphide project located in the Southern portion of WA’s Agnew-Wiluna Greenstone Belt. The acquisition includes:
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Extensive, near-new infrastructure and a 300,000tpa plant;
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o200-room accommodation village and associated facilities;oExisting open cut and underground mine; andoA ~2km sealed airstrip.
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The Project offers outstanding exploration upside with the potential to confirm an extension of the Sinclair nickel deposit along strike and beyond the end of existing mining development, where historical drilling has identified nickel sulphide mineralisation for a further 1km.
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Other immediate near-mine targets exist within the Stirling and Skye ultramafic channels, located adjacent to and below the Sinclair deposit.
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The broader Sinclair Nickel Project includes a highly prospective 300km[2] tenement package which hosts extensive ultramafic rock packages and numerous walk-up nickel sulphide drill targets.
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Sinclair Nickel Project – 300,000tpa process plant and concentrator
Talisman Mining Ltd ABN 71 079 536 495 6 Centro Avenue, SubiacoWestern Australia 6008 www.talismanmining.com.au
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Talisman Mining Ltd (ASX: TLM) is pleased to announce that it has secured an outstanding growth opportunity in one of the world’s premier nickel sulphide provinces after reaching agreement to acquire the Sinclair Nickel Project from Xstrata Nickel Australasia Operations Pty Ltd, a subsidiary of Glencore.
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Located in the prolific Agnew-Wiluna Greenstone Belt in WA’s Northeastern Goldfields (see Figure 1 ), Sinclair is an advanced nickel sulphide project with extensive, near-new and well-maintained infrastructure and, importantly, outstanding exploration upside.
The Project will provide Talisman with a unique combination of immediate exploration potential that, with success, offers optionality to fast-track a return to production, subject to prevailing nickel prices.
In light of the strong market outlook for nickel in the medium term, Talisman believes that this transaction – which follows an extensive search for suitable acquisition opportunities in Australia – represents a transformational opportunity for the company.
The acquisition of the Sinclair Nickel Project also complements Talisman’s existing Bryah Basin copper-gold portfolio, where leading Australian copper producer Sandfire Resources NL (ASX: SFR) is funding active exploration as part of its $15 million exploration joint venture farm-in to Talisman’s Doolgunna tenements (see Appendix 1 ).
Figure 1: The Sinclair Nickel Project showing regional geology nickel production centres and reported contained nickel of the Agnew-Wiluna Belt (MINDEX 2012)
Sinclair Nickel Project Overview
The Sinclair Nickel Project is located in the southern portion of the Agnew-Wiluna Belt in Western Australia, one of the world’s premier nickel provinces with over 9 million tonnes of reported contained nickel metal (see Figure 1 ).
The Sinclair nickel deposit was discovered by the former highly successful nickel miner and explorer, Jubilee Mines NL, in October 2005.
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The Sinclair nickel mine was developed and commissioned in 2008 and operated successfully before being placed on care and maintenance in August 2013, having produced approximately 38,500 tonnes of nickel at an average life-of-mine head grade of 2.44% Ni.
Sinclair offers an exceptional Australian nickel sulphide exploration opportunity, including potential immediate extensions of the Sinclair deposit itself, advanced near-mine targets within close proximity of the existing mine infrastructure, as well as a number of drill-ready emerging exploration prospects within a 30km radius of the mine.
Sinclair Nickel Project Infrastructure
The Sinclair Nickel Project includes extensive new-near infrastructure including an existing open-cut and underground mine, an on-site 300,000tpa Concentrator, sealed airstrip and +200-person accommodation village. The process plant and mine were placed on care and maintenance in August 2013 and have been maintained to a very high standard.
Key infrastructure associated with the Sinclair Nickel Project includes (see Figure 2 ):
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Open pit, decline and underground mine;
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Processing, crushing and screening plant;
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Nickel Concentrate plant; Run-of-Mine (“ROM”) pad; Waste dump and topsoil stockpiles;
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Tailings storage facility; 200-person accommodation village and facilities;
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Administration buildings; Fully-equipped maintenance and stores warehouse;
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Core yard and exploration offices;
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Borefield and pipelines; Mining contractor facilities; Reverse Osmosis plant and potable water pipelines; and
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Waste-water treatment plant.
The availability of this extensive, high quality infrastructure package represents a significant strategic advantage to Talisman, as subject to exploration success and the prevailing global nickel price; it provides optionality to potentially fasttrack a future production pathway.
Figure 2: Aerial photo of the Sinclair Nickel Project showing key mine and processing infrastructure
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Sinclair Nickel Deposit Extension
The Sinclair deposit comprises an elongated body of massive and heavily disseminated sulphide mineralisation with a shallow plunge of around 20 degrees to the north (see Figure 3 ). The underground operation mined the deposit to around 445m below surface and offers a near-mine nickel sulphide exploration opportunity within the down-plunge extensions of the Sinclair ore body.
Nickel mineralisation at Sinclair continues down-plunge beyond the current underground mine infrastructure and has been identified in drilling for a further 1km along strike from the end of actual mining development. The first 350m of this continuation has been drilled at a sufficient density to potentially enable Inferred Resource classification, but beyond that the continuation of the Sinclair down-plunge mineralisation has only limited drilling for a further 790m on a 100-200m spaced drill pattern (see Figure 3 ).
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Figure 3: Sinclair Nickel deposit longitudinal projection with mine development showing mineralised Ni drill intercepts greater than 2% Ni beyond the limit of existing mine development
Consequently, the nickel sulphide mineralisation in the down-plunge position, beyond the existing mine development, has not been classified at this time as being a JORC compliant resource (see Figure 3 ).
Significant intersections of nickel sulphide mineralisation beyond the current mine development include (see Table 1 and Appendix 2 ):
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CWD381 4.35m @ 2.38% Ni
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CWD381B 14.95m @ 1.64% Ni ( including 5.63m @ 2.64% Ni) CWD545A 18.44m @ 1.74% Ni ( including 9.33m @ 2.31% Ni) CWD535B 6.34m @ 3.32% Ni CWD546C 9.30m @ 2.77% Ni
Of note is that underground mining in some of the final mining levels yielded significant increases in mineralised volume compared with the geological model (as defined by surface diamond drilling). These additions were realised where the vertical extent of mineralisation was greater than could be identified with 1520m spaced drilling from surface.
The dip and orientation of the Sinclair ore body coupled with the existing broad drill spacing across the mine extension position is large enough to miss significant mineralisation, as demonstrated by the last four northernmost drill traverses which intersected high-grade mineralisation with grades greater than 2.5% Ni over widths of up to 6m.
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Future drill spacing on a 40m x 20m drill pattern, coupled with DHEM, could potentially define additional highgrade shoots associated with tight folding and remobilized massive nickel sulphides along the Sinclair deposit extension, as well as assist with future in-fill resource definition drilling away from these mineralised positions.
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Figure 4: Sinclair Nickel deposit longitudinal projection with mine development, drill traces and existing DHEM plates within the Sinclair deposit extension
In addition, there is a strong correlation between DHEM responses and nickel sulphide mineralisation at Sinclair, demonstrating that EM is an effective tool in identifying potential massive nickel sulphides. Multiple DHEM plates within the Sinclair deposit extension support the continuity of the mineralisation and the potential to identify additional mineralisation down-plunge and along strike from the existing mineral inventory (see Figure 4 ).
Talisman will undertake detailed assessment of this opportunity as part of its Sinclair deposit extension exploration strategy.
Near-Mine Exploration Potential – Skye and Stirling
The Sinclair Project also offers outstanding near-mine exploration potential along two additional mineralised ultramafic channels at the Skye and Stirling Prospects which have been identified to the south and trend underneath and parallel to the main Sinclair ore body (see Figure 5 ). Significantly, both occur within an ultramafic rock type similar in style to the Sinclair ultramafic, but at much greater volumes.
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Figure 5: Longitudinal projection showing Stirling, Skye ultra-mafic channels, nickel sulphide intercepts, late-time EM plates in close proximity to the existing Sinclair Mine infrastructure and areas not tested by drilling
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The Skye and Stirling mineralisation shows strong similarities to the Sinclair ore body and the two emerging channels are associated with at least two basal positions along a complexly folded high-MgO ultramafic body. Both prospects contain drilling on a 50m x 20m pattern at their near-surface positions, but are largely untested down-plunge and to the north beneath Sinclair (see Figure 5 ).
These two nickel sulphide bearing channels show good down-plunge continuity and several late time EM conductors remain to be tested for thicker and/or higher grade mineralisation beneath the Sinclair deposit (see Figure 5 ). These target areas represent the main exploration opportunity at the near-mine Skye and Stirling Prospects.
Mineralisation at Sinclair is known to pinch and swell; therefore, if these EM conductors are as extensive as their size and conductivity indicate, they could represent new nickel sulphide ore bodies proximal to the existing Sinclair mine infrastructure. Given that positions up-plunge and to the south of these EM conductors are known to carry massive nickel sulphide mineralisation, these EM targets present as highly prospective exploration targets.
Sinclair Trend – A pipeline of exploration opportunities
Within an 8km strike length along the Sinclair Trend, several exploration prospects contain substantial volumes of near-surface prospective high-MgO ultramafic rock, have coincident ground and down-hole EM targets and existing nickel sulphide intersections awaiting follow up.
Target areas include Delphi, Parnassus and Cody Well which are hosted along strike and within the Sinclair Trend (see Figure 6 ). An integrated and systematic exploration approach is required in these areas in order to test for significant massive nickel sulphide mineralisation away from previous drilling and associated with strongly conductive EM targets along the mineralised contact.
A prioritised review of the project’s electromagnetic data, is planned to be conducted (using expert geophysical analysis) to assist in developing and identifying potential drill targets.
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Figure 6: Sinclair Trend longitudinal projection showing 8km of strike extent, late-time EM plates and historical mineralised intercepts
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Regional Exploration
The Sinclair Nickel Project includes an extensive 300km[2 ] tenement package covering at least five known ultramafic volcanic sequences which are considered prospective for massive nickel sulphide mineralisation.
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Figure 8: Sinclair Nickel Project tenements showing at least 5 highly prospective ultra-
mafic trends and prospect areas
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Numerous nickel occurrences have been identified through historical drilling across the Project (see Figure 7 ) including at the following exploration prospects:
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Marriott’s;
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Babylon;
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Carthage;
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Antioch; and
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Schmitz Well Prospects
Other regional prospects (see Figure 7 ) including Schmitz Well South and Pink Well host several walk-up drilling targets associated with known EM anomalies with coincident surface nickel geochemistry.
Neither of these prospects have been drill tested to date and will form part of Talisman’s future regional exploration strategy at the Sinclair Nickel Project.
Figure 7: Sinclair Nickel Project showing known ultra-mafic volcanic sequences considered prospective for massive nickel sulphide mineralisation over regional geology
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Transaction Details
Talisman Nickel Pty Ltd, a wholly owned subsidiary of Talisman Mining Limited, has entered into a binding Sale and Purchase Agreement with Xstrata Nickel Australasia Operations Pty Ltd, a subsidiary of Glencore to acquire 100% of the Sinclair Nickel Project.
The consideration for the acquisition of the Sinclair Nickel Project consists of:
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a cash payment of $8 million payable at completion of the transaction; and
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a contingent deferred payment of $2 million triggered by production being recommenced within 6 years of transaction completion.
The contingent consideration is to be paid six months following the receipt of the first payment for the sale of nickel product (expiring in 2020 subject to completion occurring in 2014).
Talisman will assume all environmental liabilities and obligations associated with the Sinclair Nickel Project.
Talisman has agreed to grant Glencore the right to make an offer for off-take for the first 20,000 tonnes of contained nickel-in-concentrate produced from the Sinclair Nickel Project. Talisman may accept or reject this offer. Glencore has also been granted the right to match the best 3[rd] party off-take offer should Talisman elect to seek alternative offers.
Completion of the acquisition is subject to the following:
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Ministerial consent under the Mining Act 1978 (WA) to the transfer of tenements; and
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Potential relevant regulatory approvals (if any are required).
Management Comment
Commenting on the transaction, Talisman’s Chairman, Alan Senior, said: “Sinclair is as close to the perfect acquisition as we could have hoped for. It has an existing known deposit extension, huge untapped regional exploration potential and established mine infrastructure with two emerging exploration discoveries immediately adjacent to the existing mine. It fits perfectly with our skills and capabilities as a Company and positions us for a very exciting future.”
Talisman’s Managing Director, Gary Lethridge, said the acquisition of the Sinclair Nickel Project represented a transformational opportunity for Talisman to potentially join the nickel sulphide industry, bringing to a close an extensive business development search.
“Over the course of 2014, we have identified and conducted due diligence on a large number of resource assets,” Mr Lethridge said. “The Sinclair Nickel Project represents by far the best opportunity that we have seen. It offers a rare combination of exceptional exploration upside, an existing open-cut and underground mine, plus a well-maintained and near-new on-site processing plant and concentrator with extensive surface infrastructure – which removes a critical hurdle in terms of potentially advancing rapidly towards production in the future.
“The exploration potential includes both an immediate extension of the Sinclair nickel deposit, which has been identified in drilling for over 1km beyond the end of mining development, and near-mine targets such as Skye & Stirling which offer the potential to develop an entirely new mineralised system below the Sinclair deposit.
“The regional exploration picture is also very encouraging and will provide Talisman with a smorgasbord of exploration opportunities for several years to come.
“The combination of all of these factors gives Talisman great optionality in terms of the pace at which we wish to progress the project – as either an exploration play or a potentially more advanced near-production opportunity. This strategy will depend upon the results of exploration activities, the prevailing nickel price and the overall economic environment.”
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“In summary, we are delighted to have secured this exceptional opportunity and we look forward to working with Glencore to complete the acquisition as soon as possible and getting onto the ground to commence our exploration activities,” Mr Lethridge added.
“Moving forward, the Sinclair Nickel Project is now our clear principal corporate focus, although we should not forget that Talisman retains significant exposure to the world-class exploration potential of the Bryah Basin through our $15 million exploration joint venture farm-in with Sandfire Resources, where the current exploration activities are being funded and managed by Sandfire.”
ENDS
For further information, please contact: Gary Lethridge – Managing Director on +61 8 9380 4230
For media inquiries, please contact: Nicholas Read – Read Corporate on +61 419 929 046
Competent Persons’ Statement
Information in this ASX release that relates to Exploration Results and Mineral Resources is based on information compiled by Mr Graeme Cameron, who is a member of the Australasian Institute of Mining and Metallurgy. Mr Graeme Cameron is a full time employee of Talisman Mining Ltd and has sufficient experience which is relevant to the style of mineralisation and types of deposit under consideration and to the activities undertaken to qualify as a Competent Person as defined in the 2012 Edition of the “Australian Code for Reporting of Mineral Resources and Ore Reserves”. Mr Graeme Cameron consents to the inclusion in this report of the matters based on information in the form and context in which it appear.
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Table 1 – Intercepts greater than 2% Ni from the Sinclair Nickel Deposit Extension
| Hole ID | East (MGA) |
North (MGA) |
RL (MGA) |
Dip | Azimuth | From (m) |
Intersection |
|---|---|---|---|---|---|---|---|
| CWD405 | 290674 | 6861658 | 428.54 | -75.08 | 84.26 | 698.55 | [email protected]% Ni |
| CWD536D | 290613 | 6862160 | 432 | -74 | 76.41 | 947.84 | [email protected]% Ni |
| CWD541E | 290561 | 6862356 | 430 | -74 | 77 | 1058.13 | [email protected]% Ni |
| CWD535B | 290620 | 6861959 | 430.23 | -75 | 79.01 | 837.3 | [email protected]% Ni |
| CWD535A | 290620 | 6861959 | 430.23 | -75 | 79 | 833.99 | [email protected]% Ni |
| CWD536A | 290613 | 6862160 | 432 | -74 | 76.24 | 939.65 | [email protected]% Ni |
| CWD390 | 290708 | 6861558 | 428.18 | -73 | 83 | 609.7 | [email protected]% Ni |
| SUD704 | 290954 | 6861263 | -17.21 | -17 | 324 | 132.7 | [email protected]% Ni |
| CWD546C | 290626 | 6862058 | 425 | -74 | 79 | 873.32 | [email protected]% Ni |
| CWD543B | 290608 | 6861409 | 428.37 | -61 | 84 | 558.5 | [email protected]% Ni |
| CWD381B | 290749 | 6861459 | 427.98 | -73 | 85 | 522.45 | [email protected]% Ni |
| CWD541A | 290561 | 6862356 | 430 | -74 | 77 | 1030.32 | [email protected]% Ni |
| CWD405C | 290674 | 6861658 | 428.54 | -75.08 | 84.26 | 691.31 | [email protected]% Ni |
| CWD543B | 290608 | 6861409 | 428.37 | -61 | 84 | 554.09 | [email protected]% Ni |
| CWD382 | 290775 | 6861459 | 427.92 | -78 | 78 | 520.55 | [email protected]% Ni |
| CWD381 | 290749 | 6861459 | 427.98 | -73 | 85 | 549.18 | [email protected]% Ni |
| CWD535C | 290620 | 6861959 | 430.23 | -75 | 79 | 829.57 | [email protected]% Ni |
| CWD545A | 290663 | 6861860 | 431.88 | -74 | 79 | 780.72 | [email protected]% Ni |
| CWD541E | 290561 | 6862356 | 430 | -74 | 77 | 1046.22 | [email protected]% Ni |
| CWD381A | 290749 | 6861459 | 427.98 | -73 | 85 | 534.25 | [email protected]% Ni |
| CWD414 | 290686 | 6861758 | 429 | -74.81 | 81.97 | 742.46 | [email protected]% Ni |
| CWD405C | 290674 | 6861658 | 428.54 | -75.08 | 84.26 | 683.54 | [email protected]% Ni |
| CWD415 | 290736 | 6861758 | 428.47 | -74.97 | 80.99 | 703.61 | [email protected]% Ni |
| CWD541A | 290561 | 6862356 | 430 | -74 | 77 | 1026.1 | [email protected]% Ni |
| CWD415D | 290736 | 6861758 | 427 | -74.97 | 80.99 | 701.74 | [email protected]% Ni |
| CWD539A | 290751 | 6861609 | 428.02 | -77 | 83.91 | 624.5 | [email protected]% Ni |
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Appendix 1 – Talisman Mining Ltd Doolgunna Project locations
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Appendix 2 – JORC Table 1
Section 1 Sampling Techniques and Data (Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Sampling techniques | Nature and quality of sampling (e.g. cut channels, random chips, or specific specialised industry standard measurement tools appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc.). These examples should not be taken as limiting the broad meaning of sampling. |
The Sinclair Nickel Deposit Extension describes the Sinclair massive nickel sulphide mineralised position defined by diamond drilling beyond the current mine development i.e. from 6861350N to 6862350N. The Sinclair Nickel Deposit Extension was drilled by Xstrata Nickel Australasia Operations (XNAO) using surface diamond drilling methods. 74 diamond drill holes have been drilled along the Extension on 50m x 20m spacing stepping out to 100m/200m to the north of 6861750N. All diamond drill holes reported in this report were historically drilled by XNAO between 2007 and 2012. Drill hole locations were designed to allow for 20m- spaced intersections on sections across the Sinclair mineralised zone. |
| Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. |
Diamond core is HQ and NQ2 size, was sampled on geological intervals (0.2 m to 1.2 m), cut into half (NQ2) or quarter (HQ) core to give sample weights under 3 kg. Samples were crushed, dried and pulverised (total prep) to produce a sub sample for analysis by four acid digest with an ICP/OES or AAS finish. All drill hole collars were initially located using a handheld DGPS device and subsequently picked up by Mine Surveyors upon their completion. |
|
| Aspects of the determination of mineralisation that are Material to the Public Report. In cases where ‘industry standard’ work has been done this would be relatively simple (e.g. ‘reverse circulation drilling was used to obtain 1 m samples from which 3 kg was pulverised to produce a 30 g charge for fire assay’). In other cases more explanation may be required, such as where there is coarse gold that has inherent sampling problems. Unusual commodities or mineralisation types (e.g. submarine nodules) may warrant disclosure of detailed information. |
Diamond drilling at the Sinclair Nickel Deposit Extension was used to obtain 1 m or geologically selected core samples which were crushed, dried and pulverised to produce a 25g charge for 4-acid digest with an ICP-AES or AAS finish. A visual estimation of the percentage of mineralisation was gathered as part of the standard XNAO geological logging system. |
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| Drilling techniques | Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc.) and details (e.g. core diameter, triple or standard tube, depth of diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc.). |
74 diamond drill holes have been drilled along the Sinclair Nickel Deposit Extension on 50m x 20m spacing stepping out to 100m/200m to the north of 6861750N. All surface diamond drill holes along the Sinclair Nickel Deposit Extension were completed using wedge drilling techniques with up to 4 daughter holes drilled from a single parent drill hole. Both HQ and NQ2 diameter core was collected for logging and sampling purposes. All drill holes were routinely surveyed using downhole NSG Gyroscope survey tools. All drill core was routinely orientated at nominal 6m intervals using an EzyMark-OriBlock core orientation system. |
|---|---|---|
| Drill sample recovery | Method of recording and assessing core and chip sample recoveries and results assessed. |
Diamond core recoveries are logged and recorded in the Sinclair_Datashed_database. Core photography shows overall recoveries >95%. |
| Measures taken to maximise sample recovery and ensure representative nature of the samples. |
Diamond core was reconstructed into continuous runs on an angle iron cradle for orientation marking. Depths were checked against the depth given on the core blocks and rod counts were routinely carried out by the drillers. |
|
| Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential loss/gain of fine/coarse material. |
No indication of sample bias is evident or has been established. |
|
| Logging | Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. |
Logging of diamond core records lithology, mineralogy, mineralisation, alteration, structure, weathering, colour and other primary features of the rock samples. Specific Gravity measurements were taken for all diamond drill holes. |
| Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc.) photography. |
Core was photographed in both dry and wet form. | |
| The total length and percentage of the relevant intersections logged. |
All drill holes were logged in full to the end of each hole. | |
| Sub-sampling techniques and sample preparation |
If core, whether cut or sawn and whether quarter, half or all core taken. |
Diamond core is HQ and NQ2 size, sampled on geological intervals (0.2 m to 1.2 m), cut into half (NQ2) or quarter (HQ) core to give sample weights under 3 kg. |
| If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry. |
No non-core samples taken from the Sinclair Nickel Deposit Extension |
|
| For all sample types, the nature, quality and appropriateness of the sample preparation technique. |
The sample preparation follows industry best practice where all core samples are crushed and split to 1kg then dried , pulverized and (>85%) sieved through 75 microns to produce a 25g/30g charge for 4-acid digest with an ICP-AES or AAS finish. |
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| Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples. |
QAQC protocols for all diamond drill sampling involved the use of Certified Reference Material (CRM) as assay standards. The insertion ratio of CRM standards was 1 in 25 with a minimum of 2 per batch. OREAS and Geostats standards were selected on their grade range and mineralogical properties. All QAQC controls and measures were routinely reviewed and reported on a monthly, quarterly and annual basis by XNAO. |
|
|---|---|---|
| Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling. |
Duplicate samples were inserted at a frequency of 1 in 25, with placement determined by Ni grade and homogeneity. |
|
| Whether sample sizes are appropriate to the grain size of the material being sampled. |
Samples were selected to weigh less than 3kg to ensure total preparation at the pulverization stage. Sample size is considered adequate for the rocks and mineralisation styles encountered. |
|
| Quality of assay data and laboratory tests |
The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total. |
All drill core samples were submitted to ALS Laboratories in Perth for multi-element analysis using a 25g charge with a 4-acid digest and ICP-AES or AAS finish (OG62). Analytes include Al, Fe, Mg, Mn, S, Ti, Ag, As, Co, Cr, Cu, Ni, Pb, V, Zn, Zr All ore-zone sampling underwent gravimetric analysis at ALS Chemex via the OA-GRA08d method, which calculates SG by the weight of the solvent (acetone) in the pyncometer displaced. |
| For geophysical tools, spectrometers, handheld XRF instruments, etc., the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors applied and their derivation, etc. |
No handheld XRF results reported. Not applicable to reporting of laboratory assay data. |
|
| Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established. |
QAQC protocols for all diamond drill sampling involved the use of Certified Reference Material (CRM) as assay standards. The insertion ratio of CRM standards was 1 in 25 with a minimum of 2 per batch. OREAS and Geostats standards were selected on their grade range and mineralogical properties. All core assays were required to conform to the XNAO procedural QAQC guidelines as well as routine laboratory QAQC guidelines. All QAQC controls and measures were routinely reviewed and reported on a monthly, quarterly and annual basis. Generally excellent historic results for all standards and duplicates with most performing well within the 2 standard deviation limit. Lab checks (repeats) occurred at a frequency of 1 in 25. These alternate between both the pulp and crush stages. 5% of all pulps were routinely submitted monthly to Genalysis Laboratories in Perth for Umpire Sampling. |
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| Verification of sampling and assaying |
The verification of significant intersections by either independent or alternative company personnel. |
The Talisman Technical Director has verified significant drill intersections in drill hole data for the Sinclair Nickel Deposit Extensional drilling. |
|---|---|---|
| The use of twinned holes. | No twinned holes drilled. | |
| Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. |
Logging and Sampling Data was captured and imported using Maxwell’s LogChief software. All Drill hole, Sampling and Assay data is stored in a SQL server (Datashed) database. AssayData is reviewed via DataShed, QAQCR and other customised software and databases. All assay QAQC controls were checked on a monthly, quarterly and annual period, identifying any longer term trends or patterns. Datashed software has numerous validation checks which were completed at regular time intervals. XNAO database was audited annually by an external consultant to ensure compliance. |
|
| Discuss any adjustment to assay data. | No adjustments reported. | |
| Specification of the grid system used. | The coordinate system used is the Geocentric Datum of Australia (GDA) 1994. Coordinates are in the Map Grid of Australia zone 51 (MGA). |
|
| Quality and adequacy of topographic control. |
The relative level (RL) was determined using a DGPS and picked up by Mine Surveyors at a later date. |
|
| Data spacing and distribution |
Data spacing for reporting of Exploration Results. |
74 diamond drill holes have been drilled along the Sinclair Nickel Deposit Extension on 50m x 20m spacing stepping out to 100m/200m to the north of 6861750N. |
| Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied. |
Not applicable. No resources reported. | |
| Whether sample compositing has been applied. |
No sample compositing applied. | |
| Orientation of data in relation to geological structure |
Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. |
The orientation of drilling was designed to intersect either geophysical targets or geological contacts at a perpendicular angle in order to reflect the true width of stratigraphy. |
| If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. |
No known orientation-based sampling bias has been identified. |
|
| Sample security | The measures taken to ensure sample security. |
Samples were stored at the Sinclair Nickel Mine Site prior to submission under the supervision of the Senior Project Geologist. Samples were transported to ALS Perth by an accredited courier service. |
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Audits or reviews The results of any audits or reviews of None undertaken. sampling techniques and data.
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Section 2 Reporting of Exploration Results (Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Mineral tenement and land tenure status |
Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings. |
The Sinclair Nickel Deposit Extensional diamond drilling is located within M37/1275 and M37/816. Both tenements are subject to a binding Sale and Purchase Agreement whereby Talisman Nickel Pty Ltd (a wholly owned subsidiary of Talisman Mining Limited) is contracted to acquire a 100% interest in these tenements and form part of the Sinclair Nickel Project. There are no known Native Title Claims over the Sinclair Nickel Project. |
| The security of the tenure held at the time of reporting along with any known impediments to obtaining a license to operate in the area. |
M37/816 expires on the 27thMarch 2029. M37/1275 expires on the 279hJuly 2028. M37/1275 and M37/816 are in good standing and there are no existing known impediments to exploration or mining. |
|
| Exploration done by other parties |
Acknowledgment and appraisal of exploration by other parties. |
M37/1275 hosts the Sinclair Nickel Mine which was operated by XNAO from 2007-2013 and produced approximately 38,500 tonnes of contained nickel metal. The Sinclair Nickel Deposit was discovered in 2005 by Jubilee Mines NL drill testing a ground EM anomaly. Exploration work on M37/1275 and M37/816 has included diamond, RC and Aircore drilling, ground and downhole EM surveys, soil sampling, geological interpretation and other geophysics (magnetics, gravity). |
| Geology | Deposit type, geological setting and style of mineralisation. |
The Sinclair Nickel Deposit is an example of an Archaean- aged komatiite-hosted nickel deposit, with massive nickel- iron sulphides hosted at or near the basal contact of high- MgO ultramafic lava channels with footwall basaltic volcanic and sedimentary rocks. |
| Drill hole Information | A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes: easting and northing of the drill hole collar elevation or RL (Reduced Level – elevation above sea level in metres) of the drill hole collar dip and azimuth of the hole down hole length and interception depth hole length. If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case. |
Drillhole locations are shown in figures in body of text. Refer to Appendix 2 – Significant nickel intersections from the Sinclair Nickel Deposit Extension (greater than 2% Ni). |
| Data aggregation methods |
In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (e.g. cutting of high grades) and cut-off grades are usually Material and should be stated. |
Significant intersections along the Sinclair Nickel Deposit Extension were calculated using a weighted average method. A lower cut off value of 1% nickel was used with a minimum mineralised width of 0.1m, and maximum allowed internal waste of 2m. |
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| Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail. |
No aggregate intercepts reported. | |
|---|---|---|
| The assumptions used for any reporting of metal equivalent values should be clearly stated. |
No metal equivalent values reported. | |
| Relationship between mineralisation widths and intercept lengths |
These relationships are particularly important in the reporting of Exploration Results. If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported. If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (e.g. ‘down hole length, true width not known’). |
The Sinclair nickel ore body is a complexly folded, with elongate sub-horizontal to steeply dipping massive sulphide lenses, plunging to the north at -20 degrees. Surface diamond drill holes at the Sinclair extension were angled towards the east at an inclination of -70-80 degrees to intersect the Sinclair nickel mineralised terrace at a high angle. Consequently, the majority of significant surface diamond intercepts are inferred to be approximately equal to true width. |
| Diagrams | Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views. |
Refer to Figures and Tables in the body of text. |
| Balanced reporting | Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results. |
Refer to Figures and Tables in the body of text. Significant intersections along the Sinclair Nickel Deposit Extension are calculated by Talisman using a weighted average method. A lower cut off value of 1% nickel was used with a minimum mineralised width of 0.1m, and maximum allowed internal waste of 2m.NB: Only those intersections greater than 2% are reported in this report. |
| Other substantive exploration data |
Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances. |
All relevant exploration data is shown on figures in text. Downhole EM surveys were completed by Outer Rim Exploration using a Crone transmitter/receiver with 5-50m station spacing and a tx current of 20-35A. |
| Further work | The nature and scale of planned further work (e.g. tests for lateral extensions or depth extensions or large-scale step- out drilling). Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive. |
Refer to Figures and body of text. A complete review of the Sinclair database is currently underway to determine the nature and significance of historic exploration and mining results and to identify and prioritize future exploration targets for further work. |
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