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EVOLUTION MINING LIMITED — Regulatory Filings 2003
Oct 12, 2003
64885_rns_2003-10-12_c9d00456-f15a-4368-889d-7cdd2a289c37.pdf
Regulatory Filings
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13 October 2003
DEEPS INITIATIVE - STAGE ONE DRILLING RESULTS
HIGHLIGHTS
Stage One Deeps Initiative drilling program completed and best gold $\bullet$ results include:
0.9m @ 51.4 g/t from 632.7m 5.8m @ 21.6 g/t from 608.4m* 2.5m @ 21.1 g/t from 649.5m 1.5m @ 20.8 g/t from 281.0m * reported 6 August
Potential to delineate additional open pit resources below the currently $\bullet$ planned pit base
SYNOPSIS
Westonia Mines Limited advises that Stage One of the Deeps Initiative gold drilling program has been completed. During July and August, five diamond holes (Figure 1) were completed for a total of 2,620 metres of drilling. This program was designed to:
- test for gold mineralisation within the target Edna May Gneiss ("EMG") between 600 - 700 metres depth:
- test the model that the historically productive gold reefs which near the surface ٠ occur east of the main Edna May Reef may at depth be located to its west;
- test relatively shallow EMG below the western section of the proposed open pit.
Assay results from the five drill holes are reported in Table 1 and holes are depicted on sections in Figures 2 to 5.
| Diamond Drill | From - To | Final assay |
|---|---|---|
| Hole No. | (metres downhole) | (g/t gold) |
| WDD 096 | 476 - 478.5 | 2m @ 3.9 |
| 480 - 482 | 2m @ 6.8 | |
| 526 - 528 | 2m @ 5.5 | |
| $538 - 540$ | 2m @ 3.2 | |
| 546 - 548 | 2m @ 3.3 | |
| 588 - 602 | 14m @ 2.61 | |
| includes | 588 - 590 | 2m @ 7.6 |
| includes | 600 - 602 | 2m @ 4.3 |
| 632.7 - 633.6 | $0.9$ m @ 51.4 | |
| 649.5 - 652 | 2.5m @ 21.1 | |
| WDD 097 | 189 - 193 | 4m @ $5.2^*$ |
| 532 - 534 | 2m @ 3.1 | |
| 608.4 - 614.2 | 5.8m $@$ 21.6* | |
| WDD 098 | 396.4 - 397.2 | $0.8m$ @ $8.4$ |
| WDD 099 | 281 - 282.5 | 1.5m @ 20.8 |
| WDD 100 | 372 - 374 | 2m @ 3.8 |
| 406 - 408 | 2m @ 7.4 |
Table 1: Deeps Initiative Diamond Drill Assay Results
Assay results based on a cut-off of 3.0 g/t gold over a 2.0m downhole length # hangingwall to EMG
* previously reported grade of 21.3 g/t using partial extraction technique
DISCUSSION
The objectives for the Stage One drilling program were successfully met. A comprehensive interpretation of the results is in progress, however the Company makes the following initial summary comments.
WDD 099 and WDD 100 were designed to test the EMG in an area northwest of any previous deep drilling. The EMG intersected in both holes was not strongly mineralised, however a new area has been defined for follow-up drilling. The grade and distribution of the gold is similar to that found at shallower depths and in the proposed base case open pit. The drill intersections highlight the potential to delineate additional open pit resources below that base case pit in due course.
Drill holes WDD 096, WDD 097, WDD 098 and WDD 099 each intersected a reef at the contact between the EMG and the hangingwall units. That reef presents a new target which is well to the west of previous targets. It also occurs closer to surface than is usual as it is at the top (hangingwall) contact of the moderately dipping (average $45^{\circ}$ ) EMG, whereas most of the gold mineralisation is usually concentrated nearer to the deeper footwall contact.
It assayed 20.8g/t over 1.5m from 281m in WDD 099 and 2.4g/t over 1.5m from 294.3m in WDD 100
WDD 098 was drilled to test the model that the South Reef system exists to the west of the Edna May Reef at depth. However, the hole passed into footwall rock units after about 20 metres of drilling, most likely as a result of a major fault system.
WDD 096 targeted the concept of depth extensions of the Middle and Consolidated Reef systems to the west of the Edna May Reef. It was found to be well mineralised over the 190 metre intersection of EMG, with the contact reef grading $2m \omega$ 3.8 g/t gold. At shallower depths, the zone immediately west of the Edna May Reef is usually not well mineralised, so the strength of mineralisation in WDD 096 has highlighted a major new target for follow-up drilling and has considerably broadened the potential to delineate future mineable resources.
Preliminary assay results for WDD 097 were released to the market on 6 August 2003. The final assay result of 5.8m @ 21.6 g/t gold confirms a strongly mineralised reef position in the EMG. Follow-up drilling will be required to test this newly defined maior gold bearing reef structure.
FOLLOW UP DRILLING
Independent consultants have been commissioned to computer model all deep drilling information to aid in the delineation of Stage Two drilling targets.
Andrew Drummond Managing Director
Enquiries should be directed to the Managing Director and readers are encouraged to register on the Company's website (www.westoniamines.com.au) for automatic receipt of information.
Competent Person Declaration
The information on mineralisation in this report accurately reflects information prepared by competent persons (as defined by the Australasian Code of Reporting of Identified Mineral Resources and Ore Reserves). It is compiled by A.J. Drummond, an employee of the Company who is a Fellow of The Australasian Institute of Mining and Metallurgy with the requisite experience in the field of activity in which he is reporting.


~CAD Reference: G923

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