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TALISMAN MINING LIMITED — Investor Presentation 2013
Dec 15, 2013
65926_rns_2013-12-15_694734bb-623f-4191-a4bf-5be781cd0ee3.pdf
Investor Presentation
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16[th] December 2013
COMPANY SNAPSHOT
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
Exploration Update – Nickel and CopperGold Projects
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Livingstone Project – first-pass RC drilling completed at Kerba Ni-Cu-PGE prospect, paving the way for potential follow-up exploration in 2014:
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Prospective high-magnesium ultramafic-mafic rock types intersected with potential to host magmatic Ni-Cu-PGE sulphide mineralisation
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Visible sulphides observed including trace amounts of nickel sulphide (pentlandite) and widespread disseminated copper sulphide (chalcopyrite)
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Strong Ni-Cu enrichment encountered in weathered rocks above Ni-Cusulphide bearing host rocks in hole LVRC001 with better results including:
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LVRC001: 6m @ 0.47% Ni from 6m; and
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LVRC001: 4m @ 0.45% Ni from 18m
-
Contact Details
6 Centro Avenue Subiaco, Western Australia, 6008 Australia
Telephone: + 61 8 9380 4230
Facsimile: + 61 8 9382 8200
Email:
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Springfield Project – Recent phases of exploration completed as part of an ongoing, multi-pronged strategy targeting VHMS and structurally controlled copper-gold mineralisation:
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Geological setting along the Jenkin Fault Zone (JFZ) identified as being prospective for structurally-controlled copper-gold mineralisation.
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Coherent copper anomalism associated with a major north-west fault zone defined by in-fill Aircore drilling across the Lovejoy Prospect on the JFZ.
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Ultra-detailed gravity survey completed over the Homer Volcanic Corridor to assist in defining key VHMS target horizons directly along strike from the DeGrussa mine. Processing and interpretation underway.
Website:
www.talismanmining.com.au
- Coherent, low-order Cu-Zn-Co anomaly defined by detailed soil sampling over the south-west portion of the JFZ target area.
Halloween West JV Project
Capital Structure
Shares on Issue: 131,538,627 (TLM)
Options on Issue: 9,050,000 (Unlisted)
ASX: TLM
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Detailed soil sampling and geological mapping programs completed over the western extension of the prospective Halloween VMS-target horizon
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Soil sampling and mapping also completed across a newly identified prospective copper-bearing horizon in the east of the project area.
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Assay results are awaited
Talisman Mining Ltd ABN 71 079 536 495 6 Centro Avenue, Subiaco Western Australia 6008 www.talismanmining.com.au
Exploration Update – December 2013
Livingstone Project (TLM 80%)
The Livingstone Project is located approximately 130km to the north-west of Meekatharra (see Appendix 1) and covers an area of 208km². The Project straddles the western extension of the prospective Bryah Basin at the northern margin of the Yilgarn Craton. A major shear zone traverses the entire Project with widespread gold intercepts returned by historic percussion drilling programs over a strike length of more than 31km.
Kerba Ni-Cu-PGE Prospect
Previous regional soil sampling undertaken by Talisman over the Kerba Prospect returned coherent nickelcopper-PGE anomalism over three 400m spaced lines. A detailed in-fill soil sampling program was completed across this broad zone earlier this year on a 100m x 50m grid with the aim of potentially defining a coherent nickel-copper-PGE geochemical target.
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Figure 1 – Kerba Prospect magnetic image showing completed RC drill-holes to test FLEM plates and 3D magnetic model
The in-fill soil programme defined a coherent east-west trending zone of anomalous nickel-in-soil of >1,000ppm Ni (see ASX Release – 31 July 2013) over a strike length of at least 1.8km. This anomaly was interpreted to transgress the Livingstone tenement boundary to the east and, consequently, Talisman moved to secure tenure over the eastern extension of the Kerba magnetic anomaly.
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Exploration Update – December 2013
A detailed FLEM (Fixed-Loop Electromagnetic) survey was also completed over the Kerba Prospect with the aim of testing highly conductive anomalies possibly associated with accumulations of massive nickel-copperPGE sulphides within the Kerba ultramafic intrusive body. Following detailed analysis and 3D modelling of the FLEM data, three priority EM targets were identified which were in part coincident with a coherent Ni-CuPt-in-soil anomaly and lie above the ovoid Kerba mafic-ultramafic intrusion (see Figure 1 ).
An initial 4-hole RC drilling programme for 983m has been completed at Kerba to test for the presence of nickel sulphide mineralisation as well as to establish a platform for deeper down-hole electromagnetic (DHEM) surveying. All drill-hole collar details are provided in Appendix 3.
Drill holes LVRC001, LVRC002 and LVRC003 were drilled to intersect three FLEM plates (see Figure 1 ) with associated Ni-Cu-PGE soil geochemistry, while LVRC004 was drilled down-dip of LVRC002, to provide a platform for DHEM at depth beyond the resolution of the FLEM survey data (see Figure 2 ).
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Figure 2– Kerba Prospect Cross Section on 564,300E with drill hole LVRC001 and LVRC004 drilled to test FLEM plate and 3D magnetic model.
All RC drill holes drilled through high-MgO lithologies including pyroxenite, chlorite-carbonate schists and gabbro before passing into a highly serpentinized, cumulate-textured peridotite body which is interpreted to represent the strongly magnetic Kerba intrusion observed in the regional datasets.
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Exploration Update – December 2013
Importantly, petrographic examination of the drill chips has noted widespread sulphide development within the mafic-ultramafic lithologies. Minor blebs of chalcopyrite and pyrite are preferentially developed in the pyroxenite unit and trace, fine-grained nickel sulphide (pentlandite) was observed at the pyroxeniteperidotite contact (see Figure 2 ), which could represent a prospective basal position for sulphide accumulation.
Down-hole electromagnetic (DHEM) surveys were completed, although no significant conductors were detected. A number of minor in-hole anomalies were returned but none of these are considered to be directly associated with a significant massive nickel sulphide target.
The original FLEM anomalies are interpreted to be a result of weathering effects, possibly deeper and clay enriched over the western part of the intrusion. Alternatively, there appears to be a significant amount of magnetite and pyrite in the system which in terms of the volume/extent may be the cause of the weakmoderate FLEM anomalies.
Better nickel (>0.3% Ni) and copper (>300 ppm Cu) results are listed in Table 1 below. It is important to note the strong Ni-Cu enrichment in LVRC001 within the saprolite horizon above the nickel-sulphide bearing ultramafic contact, with an intersection of up to 6m @ 0.47% Ni from 6m depth.
| Hole ID | Drill **Type ** |
East | North | RL | From (m) |
To (m) |
Down hole Width *(m) ** |
# Intercept |
|---|---|---|---|---|---|---|---|---|
| LVRC001 | RC | 564299 | 7176375 | 494 | 6 | 12 | 6 | 6m @ 0.47% Ni from 6m |
| 18 | 22 | 4 | 4m @ 0.45% Ni from 18m | |||||
| 6 | 16 | 10 | 10m @ 0.03% Cu from 6m | |||||
| LVRC002 | RC | 564001 | 7176296 | 493 | 26 | 28 | 2 | 2m @ 0.30% Ni from 26m |
| 0 | 22 | 22 | 22m @ 0.04% Cu from surface |
|||||
| 28 | 32 | 4 | 4m @ 0.04% Cu from 28m | |||||
| 46 | 50 | 4 | 4m @ 0.03% Cu from 46m | |||||
| 60 | 62 | 2 | 2m @ 0.03% Cu from 60m | |||||
| 68 | 70 | 2 | 2m @ 0.03% Cu from 68m | |||||
| LVRC003 | RC | 564504 | 7176272 | 498 | 4 | 6 | 2 | 2m @ 0.38% Ni from 4m |
| 140 | 142 | 2 | 2m @ 0.06% Cu from 140m | |||||
| LVRC004 | RC | 564319 | 7176522 | 487 | 82 | 84 | 2 | 2m @ 0.04%Cu from 82m |
| 146 | 148 | 2 | 2m @ 0.05% Cu from 146m | |||||
| 190 | 192 | 2 | 2m @ 0.07% Cu from 190m | |||||
| 200 | 202 | 2 | 2m @ 0.05% Cu from 200m |
Table 1 – Kerba Prospect; Significant nickel (>0.3% Ni) and copper (>300 ppm Cu) intersections in RC drilling, October 2013.
All RC samples collected over 2m composite intervals.
All samples analyzed for 33 elements at ALS laboratories using 4-acid digest ICP-AES method (ME-ICP61)
While these elevated results in the near-surface environment are the result of weathering processes, they may provide a useful vector to primary nickel-copper sulphides at depth elsewhere in the Kerba intrusion.
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Exploration Update – December 2013
Talisman is encouraged by the results of its 2013 exploration activities at Kerba and it is envisaged that further sampling via shallow drilling of the saprolite horizon may define further targets for deeper drilling in 2014; potentially elevating this project as part of Talisman’s planned exploration activities next year.
Springfield (TLM 100%)
The Springfield Project comprises a 303km² ground package located approximately 150km northeast of Meekatharra in the northern Murchison Goldfields region of Western Australia and 4km directly along strike from Sandfire Resources’ DeGrussa VMS Copper-Gold Mine (see Appendix 1).
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Figure 3 – Springfield Project simplified geology showing prospect locations
Previous exploration activities at Springfield have focused on systematically testing prospective stratigraphic horizons for DeGrussa-style Volcanic-hosted Massive Sulphide (VHMS) mineralization, primarily along the Homer (DeGrussa), Monty , and Central Volcanic Corridors, as well as first-pass reconnaissance-style exploration within the Southern Volcanic sequence (see Figure 3 ).
An in-depth, independent technical review completed early in 2013 identified that, in addition to DeGrussastyle VHMS mineralisation, the Springfield Project is highly prospective for a range of structurally-controlled copper-gold mineralisation styles. These alternate styles of mineralisation are evident at the nearby Thaduna and Green Dragon deposits, as well as other examples at the Mt Isa copper mine in Queensland and the Nifty copper mine in northern WA.
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Exploration Update – December 2013
Jenkin Fault Zone Summary
As a result of the technical review, a broad target area has been identified along the Jenkin Fault Zone (JFZ) comprising strongly deformed and silicified dolomitic sediments and carbonaceous black shale of the Yerrida Basin Windplain Formation in faulted contact with the Archaean Marymia granite (see Figure 4 ).
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Figure 4 – Springfield Project geology showing areas of recently completed work programmes at Jenkin Fault Zone and Homer Corridor
Importantly, it is interpreted that the Yerrida shales and dolomites may be “preferred host rocks” for structurally-controlled copper mineralization (i.e. in veins and breccia). It is also interpreted that the boundary between the Yerrida sediments and the overlying oxidised wackes and siltstones of the Karalundi Formation constitutes a major oxidation boundary that may be an important control on the deposition of copper sulphides.
Consequently, two geochemical sampling programmes have recently been completed along the JFZ to explore an area stretching over 6km in a direct line from the Lovejoy Prospect and terminating at Sandfire’s adjoining tenement boundary to the south-west (see Figure 4 ).
Lovejoy Prospect Infill Geochemical Drilling
An in-fill geochemical Aircore drilling programme was conducted at the Lovejoy Prospect comprising 43 vertical holes for 2580m on five 200m-spaced lines to test a late-time conductive MLEM anomaly associated
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Exploration Update – December 2013
with the structural confluence of a major NW trending gravity structure and the Jenkin Fault Zone (see Figure 5 ).
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Figure 5 – Lovejoy Prospect; Maximum down-hole copper results showing interpreted geology and MLEM conductance image
Drilling from south to north intersected altered and volcanic wackes and siltsones of the Karalundi formation before passing into highly-silicified dolomites and shale of the Johnson Cairn Formation, and then coarse Archaean granite to the north (see Figure 5 ) . The rocks show variable degrees of chlorite - silica alteration with abundant quartz-carbonate veins that may indicate the presence of a mineralising hydrothermal system.
The assay results clearly define a coherent east-west trending zone of copper anomalism to a maximum of 577 ppm Cu over a strike length of 600m along the Johnson Cairn-Karalundi contact, and broadly coincident with the MLEM anomaly . Furthermore, it is clear from the drilling results that a major NW fault zone exerts a strong control on the Lovejoy copper anomaly.
A complete review of the drilling data is underway to refine the geological interpretation, and to better define the anomalous trends for further possible target definition drilling. All drillhole collar positions are provided in Appendix 2 and better drilling results (>300ppm Cu) are listed in Table 2:
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Exploration Update – December 2013
| Hole | Drill Type |
East | North | RL | From | To | Down hole Width* (m) |
Copper (ppm)# |
Intercept |
|---|---|---|---|---|---|---|---|---|---|
| SPRB900 | RAB | 741492 | 7176854 | 546 | 36 | 39 | 3m | 577 | 3m @ 577ppm Cu |
| SPRB906 | AC | 741794 | 7176843 | 525 | 60 | 62 | 3m | 448 | 3m @ 448ppm Cu |
| SPRB927 | AC | 742206 | 7176404. | 514 | 69 | 78 | 9m | 309 | 9m @ 309ppm Cu |
| SPRB937 | AC | 742200 | 7176954 | 558 | 21 | 27 | 6m | 327 | 6m @ 327ppm Cu |
| SPRB941 | AC | 742400 | 7176379 | 524 | 63 | 66 | 3m | 322 | 3m @ 322ppm Cu |
Table 2 – Lovejoy Prospect; Significant results (>300ppm Cu) from aircore drilling programme, November 2013.
All samples collected over 3m composite intervals.
All samples analyzed for 33 elements at ALS laboratories using 4-acid digest ICP-AES method (ME-ICP61)
Jenkin Fault Zone Soil Sampling
Talisman has recently completed a detailed 100m x 25m soil sampling programme over the south-western portion of the JFZ target area (See Figure 4 ). The aim of this program was to define potential new target areas for follow-up geophysical and drilling programs.
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Figure 6 – Detailed soil sampling over Jenkin Fault Zone target with copper assays (points) over gridded zinc geochemical image and interpreted geology.
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Exploration Update – December 2013
Final assays have highlighted a coherent but low-order Cu-Zn-Co anomaly with a maximum Cu value of 30.5ppm (approximately double the background threshold). The anomalous zone is of the dimensions 300m x 300m and straddles the granite-sediment contact (see Figure 6 ). Field checking indicates the peak of the anomaly is largely over outcropping granite and most likely related to a series of cross-cutting NE-SW trending faults.
Further assessment is underway to determine the significance of these results.
DeGrussa Corridor - Detailed Gravity Survey
The quality of the nearby DeGrussa Volcanic-hosted Massive Sulphide (VHMS) system supports Talisman’s view that there is potential to discover additional DeGrussa-style copper-gold deposits in this region and more importantly, within the Company’s Springfield Project. Springfield is located just 4km to the east of the DeGrussa Copper Mine.
Following a detailed review of the Springfield drilling data, it is evident that there is widespread copper-iron sulphide deposition along the Homer (DeGrussa) volcanic corridor at multiple stratigraphic levels within the Narracoota volcanic succession.
The copper mineralization is mainly hosted by geological structures within chlorite-altered volcaniclastic sediments adjacent to basaltic flows and mafic sills that appear to have preferentially intruded along several sedimentary target horizons. Consequently, there is a need to clearly identify the key structural controls as well as the mafic units and adjacent sediments within the volcanic sequence.
Talisman has recently completed a comprehensive, ultra-detailed gravity survey along 50m and 100m spaced lines over the entire Homer Corridor (see Figure 4 ). This gravity survey was designed to identify and elucidate important structural controls, as well as to define the distribution and attitude of discrete dense geological units including mafic volcanic horizons, as well as less-dense target volcanic sediment horizons.
Processing and interpretation of this detailed gravity data together with re-logging of drill holes is continuing. This will result in a significantly refined geological framework for the Homer/DeGrussa volcanic corridor and potentially delineate further structural and stratigraphic targets within the Springfield Project for possible drill testing.
Halloween West JV
The Halloween West JV Project is underlain by the prospective Narracoota Volcanic Formation which hosts the DeGrussa copper-gold deposit, located some 20km along strike to the east of Halloween West (see Appendix 1). Talisman has previously completed several programs of diamond and RC drilling at its adjoining 100%-owned Halloween Project to test key VMS copper-gold targets along the Halloween VMS target horizon. This work returned encouraging high-grade gold and copper intercepts (see TLM ASX Release – 7th November 2012).
Previous first-pass RC drilling and soil sampling by Talisman at the Halloween West Joint Venture Project in late 2012 identified Cu-Au-Zn-Mn-Bi anomalism associated with a magnetic package of strongly sheared volcanic sediments, cherts and intercalated ultramafic volcanic rocks which are thought to be prospective for VMS and/or structurally controlled copper-gold mineralization.
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Exploration Update – December 2013
Halloween West JV Soil Sampling
The latest phase of exploration at the Halloween West JV comprised approximately 800 soil samples taken along 100m and 200m-spaced soil sampling traverses (see Figure 7 ). This exploration program was designed to test for the surface expression of copper-gold mineralization across two target areas including the western extension of the Halloween VMS target horizon and a malachite-bearing (secondary copper) sedimentary horizon in the east of the tenement.
In addition, the Company completed a program of geological mapping over the target horizons to identify and better define possible geological controls on potential mineralization. Samples have been sent to ACME laboratories in Vancouver for low level multi-element ICP-MS analysis. Final assays are awaited.
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Figure 7: Soil sampling grid over western extension of the Halloween VMS-target horizon and to test a malachite-bearing sedimentary unit to the north-east of the main trend.
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
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Exploration Update – December 2013
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.
Appendix 1 – Talisman Mining Ltd Project locations
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Exploration Update – December 2013
Appendix 2 – Lovejoy Prospect; Aircore Drillhole Collar Locations, October 2013.
| Hole ID | Hole Type | Grid ID | East | North | RL | Depth (m) |
Dip | Lease |
|---|---|---|---|---|---|---|---|---|
| SPRB900 | RAB | MGA94_50 | 741492 | 7176854 | 584 | 51 | -90 | E52/2313 |
| SPRB901 | RAB | MGA94_50 | 741493 | 7177016 | 582 | 45 | -90 | E52/2313 |
| SPRB902 | RAB | MGA94_50 | 741803 | 7176364 | 587 | 81 | -90 | E52/2313 |
| SPRB903 | RAB | MGA94_50 | 741796 | 7176437 | 588 | 59 | -90 | E52/2313 |
| SPRB904 | RAB | MGA94_50 | 741784 | 7176654 | 584 | 51 | -90 | E52/2313 |
| SPRB905 | RAB | MGA94_50 | 741798 | 7176759 | 580 | 65 | -90 | E52/2313 |
| SPRB906 | AC | MGA94_50 | 741794 | 7176843 | 586 | 62 | -90 | E52/2313 |
| SPRB907 | AC | MGA94_50 | 741798 | 7176910 | 586 | 42 | -90 | E52/2313 |
| SPRB908 | AC | MGA94_50 | 741797 | 7177002 | 585 | 42 | -90 | E52/2313 |
| SPRB909 | AC | MGA94_50 | 741800 | 7177080 | 587 | 46 | -90 | E52/2313 |
| SPRB910 | AC | MGA94_50 | 741798 | 7177159 | 582 | 55 | -90 | E52/2313 |
| SPRB911 | AC | MGA94_50 | 741789 | 7177244 | 576 | 64 | -90 | E52/2313 |
| SPRB912 | AC | MGA94_50 | 741798 | 7177319 | 580 | 58 | -90 | E52/2313 |
| SPRB913 | AC | MGA94_50 | 742018 | 7176439 | 586 | 71 | -90 | E52/2313 |
| SPRB914 | AC | MGA94_50 | 741993 | 7176518 | 569 | 70 | -90 | E52/2313 |
| SPRB915 | AC | MGA94_50 | 742003 | 7176599 | 586 | 89 | -90 | E52/2313 |
| SPRB916 | AC | MGA94_50 | 741992 | 7176689 | 584 | 74 | -90 | E52/2313 |
| SPRB917 | AC | MGA94_50 | 742000 | 7176765 | 585 | 59 | -90 | E52/2313 |
| SPRB918 | AC | MGA94_50 | 742003 | 7176839 | 584 | 36 | -90 | E52/2313 |
| SPRB919 | AC | MGA94_50 | 742004 | 7176923 | 584 | 60 | -90 | E52/2313 |
| SPRB920 | AC | MGA94_50 | 741999 | 7176993 | 584 | 50 | -90 | E52/2313 |
| SPRB921 | AC | MGA94_50 | 742000 | 7177076 | 582 | 46 | -90 | E52/2313 |
| SPRB922 | AC | MGA94_50 | 741998 | 7177160 | 577 | 43 | -90 | E52/2313 |
| SPRB923 | AC | MGA94_50 | 741996 | 7177242 | 583 | 48 | -90 | E52/2313 |
| SPRB924 | AC | MGA94_50 | 742202 | 7176198 | 590 | 86 | -90 | E52/2313 |
| SPRB925 | AC | MGA94_50 | 742211 | 7176271 | 591 | 77 | -90 | E52/2313 |
| SPRB926 | AC | MGA94_50 | 742203 | 7176352 | 589 | 56 | -90 | E52/2313 |
| SPRB927 | AC | MGA94_50 | 742206 | 7176404 | 585 | 87 | -90 | E52/2313 |
| SPRB928 | AC | MGA94_50 | 742206 | 7176512 | 594 | 107 | -90 | E52/2313 |
| SPRB929 | AC | MGA94_50 | 742196 | 7176590 | 585 | 80 | -90 | E52/2313 |
| SPRB930 | AC | MGA94_50 | 742195 | 7176685 | 589 | 89 | -90 | E52/2313 |
| SPRB931 | AC | MGA94_50 | 742202 | 7176757 | 587 | 86 | -90 | E52/2313 |
| SPRB932 | AC | MGA94_50 | 742196 | 7176829 | 583 | 71 | -90 | E52/2313 |
| SPRB933 | AC | MGA94_50 | 742197 | 7176915 | 580 | 77 | -90 | E52/2313 |
| SPRB934 | AC | MGA94_50 | 742206 | 7177080 | 587 | 64 | -90 | E52/2313 |
| SPRB935 | AC | MGA94_50 | 742198 | 7177166 | 581 | 42 | -90 | E52/2313 |
| SPRB936 | AC | MGA94_50 | 742205 | 7176997 | 579 | 56 | -90 | E52/2313 |
| SPRB937 | AC | MGA94_50 | 742200 | 7176954 | 581 | 49 | -90 | E52/2313 |
| SPRB938 | AC | MGA94_50 | 742409 | 7175894 | 585 | 80 | -90 | E52/2313 |
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Exploration Update – December 2013
| Hole ID | Hole Type | Grid ID | East | North | RL | Depth (m) |
Dip | Lease |
|---|---|---|---|---|---|---|---|---|
| SPRB940 | AC | MGA94_50 | 742404 | 7176218 | 581 | 80 | -90 | E52/2313 |
| SPRB941 | AC | MGA94_50 | 742400 | 7176379 | 589 | 95 | -90 | E52/2313 |
| SPRB942 | AC | MGA94_50 | 741800 | 7176805 | 579 | 47 | -90 | E52/2313 |
| SPRB943 | AC | MGA94_50 | 742010 | 7176798 | 585 | 47 | -90 | E52/2313 |
Appendix 3 – Kerba Prospect; RC Drillhole Collar Locations, November 2013.
| Hole ID | Hole Type | Grid ID | East | North | RL | Depth (m) |
Dip | Azimuth | Lease |
|---|---|---|---|---|---|---|---|---|---|
| LVRC001 | RC | MGA94_50 | 564299 | 7176375 | 494 | 203 | -60 | 180 | E52/2593 |
| LVRC002 | RC | MGA94_50 | 564001 | 7176296 | 493 | 222 | -60 | 180 | E52/2593 |
| LVRC003 | RC | MGA94_50 | 564504 | 7176272 | 498 | 204 | -60 | 180 | E52/2593 |
| LVRC004 | RC | MGA94_50 | 564319 | 7176522 | 487 | 354 | -60 | 180 | E52/2593 |
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Exploration Update – December 2013
Appendix 4 - 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 (eg 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 Kerba targets were sampled using Reverse Circulation (RC) drilling. A total of 4 RC holes were drilled for 983m on three lines spaced 200m apart. Each hole was drilled at an inclination of -60 degrees towards the south. The Aircore (AC) drilling at Lovejoy comprised43 vertical holes for 2580 m on five 200m-spaced lines. 600 soil samples were taken on a 100m x 25m grid pattern at the Jenkin Fault Zone. A handheld_Innov-X Delta_XRF device is used to analyze rock geochemistry for each 1m drill interval or soil sample site to provide an estimation of base metals and other geochemical pathfinders. |
| • Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used. |
RC drill samples were collected using a cone splitter for each metre drilled. A 2m composite sample was taken via a second sampling chute and collected into pre-numbered calico bags. 2m composite samples were sent for laboratory assaying while one metre samples were collected and stored on site for future reference. AC drill samples are collected on a metre by metre basis via a Cyclone collection device. Individual bulk metre samples are composited over a 3m interval using representative spear sampling techniques. All drillhole collars are initially located using a handheld GPS device and subsequently picked up by Surveyors upon their completion. |
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Exploration Update – December 2013
| Exploration Update – December 2013 | ||
|---|---|---|
| • 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 (eg ‘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 (eg submarine nodules) may warrant disclosure of detailed information. |
A visual estimation of the percentage of mineralization is gathered as part of the standard Talisman geological logging system. RC drilling at Kerba was used to obtain 1 m samples and 2m composites – of which approximately 3kg was crushed, dried and pulverised to produce a 25g charge for 4-acid digest with an ICP- AES and low-level ICP_MS (gold) finish Aircore drilling at Lovejoy was used to obtain 1 m samples and 3m composites – of which approximately 3kg was crushed, dried and pulverised to produce a 25g charge for 4-acid digest with an ICP-AES (33 elements) and low-level ICP_MS (gold) finish. Soil samples are sieved to produce a – minus 2mm fraction sample. All samples are crushed, dried and pulverized to produce a representative sample for Aqua Regia digestion and ICP-MS finish (36 elements). |
|
| Drilling techniques |
• Drill type (eg core, reverse circulation, open- | Reverse Circulation (RC) drilling at the Kerba Prospect using a 5.5 inch face- sampling hammer drill bit. Aircore (AC) drilling at Lovejoy Prospect using NQ aircore drill string and bit. |
hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg 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). |
||
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Exploration Update – December 2013
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Drill sample recovery |
• Method of recording and assessing core and chip sample recoveries and results assessed. |
For RC and AC drilling the volume of sample material collected is routinely inspected and recorded on a metre by metre basis, and indicates approximate sample recovery. Actual sample weights are routinely recorded at the laboratory and stored in the Talisman database. Overall drilling recoveries at both the Kerba and Lovejoy Prospects are good and there are no sample recovery problems. |
| • Measures taken to maximise sample recovery and ensure representative nature of the samples. |
RC samples are collected using a cone splitter for each metre drilled. A 2m composite sample is also taken via a second sampling chute and collected into pre-numbered calico bags. AC samples for each metre drilled are collected directly from the drill cyclone. Spear sampling techniques are employed across each 1m pile to produce a representative 3m composite sample. |
|
| • 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. |
The relationship between the potential loss of fine material and grade during wet drilling is unknown. All wet samples, where the fine fraction of the sample has potentially been reduced, have been logged and recorded in the Talisman database accordingly. |
|
| Logging | • Whether core and chip samples have been | All RC and AC drill holes have been logged as down-hole intervals recording all appropriate oxidation, weathering, lithological, textural and structural data to help assess potential mineralization. |
| geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies. |
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| • Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc) photography. |
Logging of RC and AC drill chips routinely recorded depth intervals, lithology, grainsize, texture, structure, alteration, veining, weathering/oxidation and mineralization. Every one metre interval was collected, sieved and retained in plastic chip trays for future reference. |
|
| • The total length and percentage of the relevant intersections logged. |
All drill holes are logged in full to the end of the hole. Geological logging routinely records down-hole intervals according to variations in geology. |
|
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Exploration Update – December 2013
| Exploration Update – December 2013 | |||
|---|---|---|---|
| Sub- sampling techniques and sample preparation |
• If core, whether cut or sawn and whether quarter, half or all core taken. |
No core was sampled. | |
| • If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry. |
At the Kerba Prospect, all RC samples were cone split into 2m composites. The majority of samples were dry. At the Lovejoy Prospect’ AC samples are collected for each metre drilled directly from the drill cyclone. Spear sampling techniques are employed equally across each 1m pile to produce a representative 3m composite sample. |
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| • For all sample types, the nature, quality and appropriateness of the sample preparation technique. |
The sample preparation of RC, AC drill chip and soil samples follows industry best-practice for sample preparation involving splitting, sieving, drying, and pulverizing of the total sample. |
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| • Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples. |
Field QC procedures for all drill and soil sampling programmes involve the use of Certified Reference Material (CRM) as assay standards. The insertion ratio of standards was 1:20. All QC/QA controls and measures are routinely reviewed and reported on at the completion of the programme. External laboratory QC/QA checks are routinely monitored and stored in the Talisman database. |
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| • 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. |
No field duplicates have been taken. Samples are selected to weigh less than 3kg to ensure total preparation at the pulverization stage. One metre drill spoil samples are collected in calico bags and/or stored on the ground for no longer than 6 months for future reference and resampling where necessary, and to ensure sample repeatability over 1m intervals. |
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| • Whether sample sizes are appropriate to the grain size of the material being sampled. |
Sample size is considered adequate for the rocks encountered, mineralization style and purpose of this program |
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Exploration Update – December 2013
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Quality of assay data and laboratory tests |
• The nature, quality and appropriateness of | All drill samples were submitted to ALS Laboratories in Perth for multi-element analysis using a 25g charge with a 4- acid digest and ICP-AES finish (ME- ICP61). Gold assaying comprised an Aqua Regia digest and ICP-MS finish with low-level detection (ST43). All soil samples were sent to ACME Laboratories, Vancouver for low level multi-element analysis by aqua- regia digestion with a ICP-MS finish (1DX). |
the assaying and laboratory procedures used and whether the technique is considered partial or total. |
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| • 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. |
A handheld_Olympus Innov-X Delta_XRF machine was used on all 1m drill sample piles and soil samples. Reading times are generally 60 seconds in “soil sampling” mode. The XRF unit was calibrated daily against Certified Reference Material. |
|
| • Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established. |
All drill and soil assays were required to conform to the Talisman procedural QA/QC guidelines as well as routine laboratory QA/QC guidelines. This has been achieved using laboratory standards and duplicates as well as company standards. QA/QC reports have been generated and all data is stored in the Talisman Database. |
|
| Verification of sampling and assaying |
• The verification of significant intersections by either independent or alternative company personnel. |
The Talisman Exploration Manager has verified significant intersections in drill hole data. |
| • The use of twinned holes. | No twinned holes drilled. | |
| • Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols. |
Field and laboratory data have been collected electronically and stored in the Talisman_Datashed_database The data is visually examined using_Micromine_ mining software. |
|
| • Discuss any adjustment to assay data. | None undertaken | |
| • Specification of the grid system used. | The coordinate system used was the Geocentric Datum of Australia (GDA) 1994. Coordinates are in the Map Grid of Australia zone 50 (MGA). |
|
| • Quality and adequacy of topographic control. | A handheld GPS has been used to determine local altitude. The final relative level (RL) is determined using a DGPS at a later date. |
|
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Exploration Update – December 2013
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Data spacing and distribution |
• Data spacing for reporting of Exploration Results. |
RC drilling at the Kerba Prospect was conducted on a hole by hole basis in areas of strong geochemical anomalism and coincident geophysical targets. AC drill spacing at Lovejoy Prospect was on a 200m by 80m grid pattern. Soil sampling along the Jenkin Fault Zone was on a nominal 100m by 25m grid pattern. |
| • 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 for first phase exploration drilling and soil sampling. |
|
| • Whether sample compositing has been applied. |
RC samples are collected using a cone splitter for each metre drilled. A 2m composite sample is taken via a second sampling chute and collected into pre- numbered calico bags. AC samples for each metre drilled are collected directly from the drill cyclone. Spear sampling techniques are employed across each 1m pile to produce a representative 3m composite sample. |
|
| Orientation of data in relation to geological structure |
• Whether the orientation of sampling achieves | 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. |
unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. |
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| • 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 prior to submission are stored in field under the supervision of the Project Geologist. Samples are transported by an accredited courier service to ALS Perth and ACME, Vancouver. |
| Audits or _reviews _ |
• The results of any audits or reviews of | None undertaken. |
sampling techniques and data. |
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Exploration Update – December 2013
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. |
AC drilling and soil sampling at Lovejoy was on the tenement E52/2313. This lease is part of Talisman’s 100% owned Springfield Project, 150km north-east of Meekatharra, WA. This tenement falls within the Department of Conservation-managed Doolgunna pastoral lease. RC drilling at Kerba was on E52/2593. The tenement is part of the Livingstone Project which is a joint venture between Talisman Mining Ltd (80%) and Zebina Minerals Pty Ltd (20%). |
| • 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. |
E52/2313 at Springfield expires on the 24th November 2014. The tenement is in good standing and there are no existing impediments to exploration. E52/2593 at Livingstone expires on the 17thApril 2016. The tenement is in good standing and there are no existing impediments to exploration. |
|
| Exploration done by other parties |
• Acknowledgment and appraisal of | Exploration work at Springfield completed prior to Talisman’s tenure included geochemical soil and rock chip sampling combined with geological mapping. Some targeted RC drilling was completed over gold and diamond targets. Historic exploration work at Kerba (Livingstone) included geological mapping, ground based Induced Polarization (IP) surveys, soil sampling and shallow percussion (RAB) drilling. |
exploration by other parties. |
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| Geology | • Deposit type, geological setting and style of mineralisation. |
Talisman’s Springfield and Livingstone Projects lie within the Proterozoic-aged Bryah rift basin enclosed between the Archaean Marymia Inlier to the north and the Proterozoic Yerrida basin to the south. The rocks comprise dolerites, basalt, and volcanic–derived sediments of the Narracoota Formation overlying shales, dolomite, siltstone and sandstones of the Karalundi and Windplain Formations. The principal exploration targets in the Springfield area are Volcanic Hosted Massive Sulphide (VHMS) and structurally-controlled base metal (copper) deposits with associated gold mineralization. The principal exploration targets in the Livingstone area are orogenic gold deposits and intrusive- related magmatic nickel-copper-PGE sulphide deposits. |
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Exploration Update – December 2013
| Drill hole Information |
• A summary of all information | Refer to Appendix 2 – Lovejoy AC Drillhole Collar Locations. Refer to Appendix 3 – Kerba RC Drillhole Collar Locations |
|---|---|---|
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. _ |
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Exploration Update – December 2013
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Data aggregation methods |
• In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated. |
A lower cut off value of 3000ppm (0.3%) was used to report significantnickel results at the Kerba Prospect. A lower cut off value of 300ppm was used to report significantcoppervalues at both the Kerba and Lovejoy Prospects. |
| • 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. |
Not applicable | |
| • The assumptions used for any reporting of metal equivalent values _should be clearly stated. _ |
Not applicable. No metal equivalent values reported. |
|
| Relationship between mineralisation widths and intercept lengths |
• These relationships are particularly | RC drill holes at Kerba were angled at an inclination of -60 degrees to intersect modeled geophysical targets and/or steeply dipping geological units at a high angle. Consequently, any significant downhole intercepts are inferred to be approximately equal to true width. Vertical AC drilling at Lovejoy is designed to test for horizontal geochemical dispersion in the regolith profile and does not reflect primary geological controls. |
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 (eg ‘down hole length, true width not known’). |
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| 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 | Refer to Figures and Tables in the body of text. |
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. _ |
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Exploration Update – December 2013
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| 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. |
Down-hole electro-magnetic (DHEM) surveys were completed on four RC drill holes at the Kerba Prospect (LVRC001-004). No significant anomalies were detected in any of the holes. |
| Further work | • The nature and scale of planned | See body of text. |
| further work (eg 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. _ |
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