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STRONG INITIAL ASSAYS CONFIRM QUALITY AND CONSISTENCY OF HIGH-GRADE APHRODITE UNDERGROUND RESOURCE
Results from first four diamond holes confirm new exploration model and support ongoing development studies – assays for remaining nine holes awaited
Key Points:
- Highly encouraging initial assay results received from recently completed 13-hole/6,149.4m resource in-fill and extensional diamond drilling program at the 100%-owned Aphrodite Gold Project near Kalgoorlie in WA.
- Results from the first four diamond holes have confirmed the continuity of the lower Alpha lode over the central portion, validating the Company’s updated geology model. Significant assays included:
- 18APD006 10m @ 3.99g/t Au from 377m including 3m @ 6.69g/t from 383m
22m @ 6.28g/t Au from 391m including 10m @ 11.57g/t Au from 393m
- 18APD003 16m @ 2.65g/t Au from 322m including 4m @ 5.13g/t Au from 322m
5m @ 3.21g/t Au from 330m
12m @ 11.53g/t Au from 377m
- 18APD001 17m @ 2.67g/t Au from 322m including 3m @ 4.21g/t Au from 325m
3m @ 6.02g/t Au from 336m
- 18APD002 2m @ 4.09g/t Au from 373m
- The drilling program was based on an upgraded geological model completed by consultants Model Earth and was designed to test and in-fill the lower Alpha and Phi lodes, with the aim of upgrading the substantial Underground Inferred Resource of 1.4Mt at 7.5g/t for 332,000oz.
- The drilling, together with other ongoing development studies at Aphrodite, will pave the way for a Feasibility Study on the Aphrodite Gold Project in the second half of this year.
- Further extensional diamond drilling planned to commence shortly targeting newly identified opportunities to expand the Underground Inferred Resource from the new geological model.
Spitfire Materials Limited (ASX: SPI) is pleased to advise that it has received highly encouraging initial results from the recently completed resource in-fill and extensional diamond drilling program at its flagship 100%-owned 1.26Moz Aphrodite Gold Project, located 65km north of Kalgoorlie in the Eastern Goldfields of WA (see Figure 4).
The results received so far have confirmed the quality and consistency of the mineralisation within the Underground Inferred Resource of 1.4Mt at 7.5g/t for 332,000oz (see ASX release dated 25 January 2018), supporting the Company’s objective of upgrading this Inferred Resource as the cornerstone of its development studies.
The drilling has also provided valuable geotechnical information and metallurgical samples for future underground feasibility work.
Assay results from the first four holes have confirmed the continuity of the lower section of the Alpha lode over 300m, with highlights including 17m @ 2.67g/t Au from 322m (18APD001), 12m @ 11.53g/t Au from 377m (18APD003) and 22m @ 6.28 g/t Au from 391m (18APD006). Assays from the remaining nine holes are expected over the next few weeks.
Spitfire’s Managing Director, Mr John Young, said: “We’re off to a great start at Aphrodite, having recently completed our maiden 13-hole diamond drilling program and received the first batch of assays. The drilling was specifically designed to test and in-fill the lower Alpha and Phi lodes, which contain a significant Inferred Resource of 1.4 million tonnes grading 7.5g/t Au for 332,000oz.
“The results clearly demonstrate the continuity and quality of the high-grade mineralisation within the key lodes. Importantly, the thick intercepts in holes 3 and 6 correlate with historical intercepts and reinforce the potential to upgrade the central part of the Underground Inferred Resource.
“The completion of a new geological model for the deposit has also been a key breakthrough, transforming our understanding of the geometry, orientation and controls on the mineralisation and highlighting a number of areas where we see clear potential to expand the current Resource. This potential will be tested by further diamond drilling, which is planned to commence shortly while we await the balance of the Phase 1 assays.”
Aphrodite Diamond Drilling Program
The HQ diamond drilling program has been completed at Aphrodite, with a total of 13 holes completed for 4959.6m of core and 1189.8m of RC/Mud Rotary. The results received to date indicate that the lower footwall zone in the Alpha lode is continuous. As a result, the Company intends to extend the current program with two further holes planned on the deeper extensions to the Alpha Lode.
Assay results have been received for the first four holes (18APD001-003, and 18APD006), which were designed to intersect the Alpha Lode between the 200mRL and the 100mRL within the Inferred section of the resource. Drilling here was spaced at 80m along section lines. Drilling along this section of the Alpha zone is now at 40m by 40m spacings (see Figures 1-3 which illustrate the drilling results received from the first four holes – sections 6659760mN to 6660000mN).
Hole 18APD002 returned an intercept of 2m @ 4.09 g/t Au from 373m along the footwall zone on section 6659840mN in a geologically similar position to 18APD003. Further investigation of the zone is required, detailed logging and resampling of this interval is underway. The lodes are structurally controlled and it is believed late stage folding and crenulation is responsible for large scale upright folds, these shallow north north-east plunging folds are believed to control the high grade ore geometry (shoots) of 20-25° towards 340°.
The high grade mineralization in the lower portion the Alpha orebody is generally related to a distinctive set of tension array of quartz veinlets associated with intense silica-sericite-biotite alteration. These higher grade (Au) narrow vein networks are associated with an increase in arsenopyrite and grades are often in excess of 10 g/t Au, this is clearly the case in the lower section of the footwall zone in 18APD006 (10m @ 11.57g/t Au from 393m).
The Alpha deeps style of mineralization is more closely aligned to the main Alpha shear (5-15m wide) and sits within the felsic volcaniclastic/porphyry host and has a steep linear geometry.
Highlights of the first four holes are as follows:
- 18APD001 17m @ 2.67 g/t Au from 322m, including
3m @ 4.21g/t Au from 325m; and
- 18APD002 3m @ 6.02g/t Au from 336m
2m @ 4.09 g/t Au from 373m
- 18APD003 16m @ 2.65 g/t Au from 322m, including
4m @ 5.13 g/t Au from 322m and
5m @ 3.21g/t Au from 330m; and
4m @ 4.38 g/t Au from 355m; and
12m @ 11.53 g/t Au from 377m
- 18APD006 2m @ 5.83 g/t Au from 45m; and
10m @ 3.99 g/t Au from 377m, including
3m @ 6.69 g/t Au from 383m
22m @ 6.28 g/t Au from 391m, including
10m @ 11.57 g/t Au from 393m
Figure 1: Cross Section 6,660,000mN
Figure 2: Cross Section
Figure 3: Drill Hole Location Plan
APHRODITE GOLD PROJECT – BACKGROUND
The Aphrodite Gold Project is located 65km north of Kalgoorlie in the Eastern Goldfields of Western Australia and has a long history of exploration and resource estimation by several parties dating from its discovery in the mid-1990s.
The Aphrodite deposit is covered by five contiguous Mining Leases which are 100%-owned by Aphrodite. All five tenements have been granted for a 21-year life, with the earliest expiry date in 2028.
The Aphrodite mineralisation and current Mineral Resource estimate is situated in the Kalgoorlie Terrane of the Yilgarn Craton, and within the Bardon Tectonic Zone – a high-strain zone in supracrustal rocks extending about 120km north of Kalgoorlie. The Aphrodite prospect comprises a suite of intermediate to felsic porphyries that have intruded a sequence of basalts and dominantly volcanic-derived epiclastic rocks. The main zones of mineralisation defined so far (the near vertically-dipping Alpha and Phi lodes) lie within a regional N-S sericite-pyrite-arsenopyrite alteration system that extends for about 3km along strike.
Figure 4: Aphrodite Gold Project, Geology and Location Plan
Domain | Indicated | Inferred | Indicated + Inferred | ||||||
Tonnes | Gold | Tonnes | Gold | Tonnes | Gold | ||||
(Mt) | (g/t) | (koz) | (Mt) | (g/t) | (koz) | (Mt) | (g/t) | (koz) | |
OP (0.5g/t cut-off) | 6.2 | 2.1 | 411 | 4.0 | 1.5 | 187 | 10.2 | 1.8 | 598 |
UG (3.0g/t cut-off) | 1.6 | 6.6 | 330 | 1.4 | 7.5 | 332 | 2.9 | 7.0 | 663 |
Total Resource | 7.8 | 3.0 | 741 | 5.3 | 3.0 | 520 | 13.1 | 3.0 | 1,261 |
McDonald Speijers Aphrodite Project Resource Estimation
The resource estimate was classified in accordance with the Australasian Code for Reporting of Identified Mineral Resources and Ore Reserves (JORC Code 2012) – Refer ASX Release 25 January 2018.
DISCLAIMERS AND FORWARD-LOOKING STATEMENTS
This announcement contains forward looking statements. Forward looking statements are often, but not always, identified by the use of words such as "seek", “target”, "anticipate", “forecast”, "believe", "plan", "estimate", "expect" and "intend" and statements that an event or result "may", "will", "should", "could" or "might" occur or be achieved and other similar expressions.
The forward-looking statements in this announcement are based on current expectations, estimates, forecasts and projections about Spitfire and the industry in which they operate. They do, however, relate to future matters and are subject to various inherent risks and uncertainties. Actual events or results may differ materially from the events or results expressed or implied by any forward-looking statements. The past performance of Spitfire is no guarantee of future performance.
None of Spitfire’s directors, officers, employees, agents or contractors makes any representation or warranty (either express or implied) as to the accuracy or likelihood of fulfilment of any forward-looking statement, or any events or results expressed or implied in any forward-looking statement, except to the extent required by law. You are cautioned not to place undue reliance on any forward-looking statement. The forward-looking statements in this announcement reflect views held only as at the date of this announcement.
For further information contact:
INVESTORS:
John Young Spitfire Materials Limited
Telephone: 0419 954 020
Email: admin@spitfirematerials.com.au
MEDIA:
Nicholas Read Read Corporate
Telephone: 0419 929 046
Email: info@readcorporate.com.au
Competent Person’s Statement
The Company confirms it is not aware of any new information or data that materially affects the information included in the 25 January 2018 Aphrodite Mineral Resource Estimate and that all material assumptions and technical parameters underpinning the estimate continue to apply and have not materially changed when referring to its resource announcement made on January 25, 2018.
The information in this announcement relating to Exploration Targets, Exploration Results and Mineral Resources is based on information compiled by the Company’s proposed Managing Director, Mr John Young, a competent person, who is a Member of the Australian Institute of Mining and Metallurgy. Mr Young has sufficient experience relevant to the style of mineralisation and to the type of activity described to qualify as a competent person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves.” Mr Young has disclosed to the Company that he is a substantial shareholder in the Company. Mr Young consents to the inclusion in this announcement of the matters based on his information in the form and content in which it appears.
Appendix 1
Table 1 – Drill Hole Location Table
Hole ID | Collar North (AMG84_51) | Collar East (AMG84_51) | Collar RL | Dip | Azi | Pre-collar Depth | Max Depth |
18APD001 | 6659760 | 329475 | 390 | -60 | 270 | 91 | 421 |
18APD002 | 6659840 | 329480 | 390 | -60 | 270 | 89 | 462.7 |
18APD003 | 6659920 | 329465 | 390 | -60 | 270 | 83.6 | 471.8 |
18APD004 | 6659960 | 329540 | 390 | -60 | 270 | 80 | 612.8 |
18APD005 | 6660000 | 329335 | 390 | -60 | 270 | 96 | 306.1 |
18APD006 | 6660000 | 329435 | 390 | -60 | 270 | 96 | 451.1 |
18APD007 | 6660000 | 329535 | 390 | -60 | 270 | 84 | 631.7 |
18APD008 | 6660060 | 329185 | 390 | -60 | 270 | 120.7 | 504.9 |
18APD009 | 6659720 | 329475 | 390 | -60 | 270 | 94 | 383 |
18APD010 | 6659680 | 329450 | 390 | -60 | 270 | 113.5 | 290.8 |
18APD011 | 6659560 | 328930 | 390 | -65 | 90 | 71 | 435.8 |
18APD012 | 6659600 | 328855 | 390 | -65 | 90 | 87 | 579.9 |
18APD013 | 6659880 | 329280 | 390 | -65 | 270 | 84 | 597.8 |
Table 2 - Significant Intersections (> 0.5g/t Au) Drilling
Hole_ID | From(m) | To(m) | Length(m) | Intersection >1 g/t Au (all uncut) |
18APD001 | 80 | 83 | 3 | 1.14 |
18APD001 | 267 | 269 | 2 | 4.41 |
18APD001 | 279 | 280 | 1 | 1.84 |
18APD001 | 287 | 290 | 3 | 1.43 |
18APD001 | 308 | 317 | 9 | 1.06 |
18APD001 | 322 | 339 | 17 | 2.67 |
including | 325 | 328 | 3 | 4.21 |
including | 336 | 339 | 3 | 6.02 |
18APD002 | 77 | 80 | 3 | 0.89 |
18APD002 | 134 | 136 | 2 | 1.23 |
18APD002 | 195 | 196 | 1 | 1.08 |
18APD002 | 254 | 255 | 1 | 3.94 |
18APD002 | 290 | 291 | 1 | 1.40 |
18APD002 | 316 | 318 | 2 | 1.23 |
18APD002 | 373 | 375 | 2 | 4.09 |
18APD002 | 381 | 382 | 1 | 1.14 |
18APD003 | 83.6 | 86 | 2.4 | 2.55 |
18APD003 | 89 | 91 | 2 | 1.91 |
18APD003 | 120 | 121 | 1 | 2.55 |
18APD003 | 264 | 274 | 10 | 0.82 |
including | 270 | 274 | 4 | 1.16 |
18APD003 | 322 | 338 | 16 | 2.65 |
including | 322 | 326 | 4 | 5.13 |
Including | 330 | 335 | 5 | 3.21 |
18APD003 | *355 | 359 | 4 | 4.38 |
18APD003 | 377 | 389 | 12 | 11.53 |
18APD006 | 45 | 47 | 2 | 5.83 |
18APD006 | 52 | 56 | 4 | 0.91 |
18APD006 | 62 | 68 | 6 | 0.90 |
18APD006 | 72 | 73 | 1 | 1.03 |
18APD006 | 374 | 375 | 1 | 1.12 |
18APD006 | 377 | 387 | 10 | 3.99 |
including | 383 | 386 | 3 | 6.69 |
18APD006 | 391 | 413 | 22 | 6.28 |
including | 393 | 403 | 10 | 11.57 |
18APD006 | 417 | 419 | 2 | 2.60 |
18APD006 | 428 | 435 | 7 | 1.73 |
18APD006 | 438 | 439 | 1 | 1.71 |
*Results from assays either side of this intersection have not been received as yet
JORC Code, 2012 Edition – Table 1 report - Aphrodite
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria | JORC Code explanation | Commentary |
Sampling techniques |
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Drilling techniques |
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Drill sample recovery |
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Logging |
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Sub-sampling techniques and sample preparation |
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Quality of assay data and laboratory tests |
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Verification of sampling and assaying |
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Location of data points |
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Data spacing and distribution |
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Orientation of data in relation to geological structure |
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Sample security |
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Audits or reviews |
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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 |
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Exploration done by other parties |
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Geology |
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Drill hole Information |
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Data aggregation methods |
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Relationship between mineralisation widths and intercept lengths |
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Diagrams |
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Balanced reporting |
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Other substantive exploration data |
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Further work |
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