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ASX Announcement
ASX: G88
10 March 2022
Encouraging Drill Results at Yarrambee
Golden Mile Resources Limited (ASX: G88; "the Company") is pleased to advise that it has received the assay results from RC drilling at its Yarrambee Project (Fig 1). The drilling has successfully identified a promising new copper and zinc sulphide horizon at the TBW prospect and the potential for further base metal mineralisation at both the Tank & Chi targets located within the Narndee Cluster.
- 2m @ 2.29% copper and 5m @ 6433 ppm zinc (including 1m @ 2.0% zinc) at the TBW target
- Copper and zinc mineralisation intersected at TBW opens a new promising target horizon within the Narndee Cluster
- MLEM to be extended south at TBW where the EM conductors remain open
- Planned drilling to test the EM conductors identified in the MLEM at Narndee South, ND-4 and T5-9 targets is still to be completed
- The drilling at the Tank target was incomplete and the results received from the completed holes were inconclusive. Further drilling and downhole EM surveys are required
Figure 1. Golden Mile's Yarrambee Base Metals Project, Murchison Region, WA. Approximate outline of November 2021
MLEM survey & June 2021 HEM survey
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ASX Announcement
ASX: G88
As previously reported, Golden Mile Resources Ltd completed 7 reverse circulation ("RC") drill holes for 1,168m in December 20211. The RC drill programme was the commencement of the systematic testing of base metal (Cu, Ni, Zn, Pb) targets at the Company's 100% owned Yarrambee Project. A total of 48 bedrock conductors were identified following a geophysical helicopter airborne electromagnetic ("AEM") survey and a follow-up moving loop electromagnetic ground survey ("MLEM") was completed that covered part of the Narndee Cluster in the December 2021 Quarter2.
The initial drilling was focused on 7 higher priority EM conductors identified in these surveys located within the Narndee cluster3 (Table 1 & Figure 2 & 3). However, difficult ground conditions prevented the programme to be fully completed with the Narndee South, ND-4 and TB5-7 targets remaining untested and the drilling at the Tank target incomplete.
Table 1. Yarrambee MLEM targets.
Prospect | Target | Conductance (S) | Depth to top | Comment | |
(m) | |||||
Narndee South | Lower Conductor | 1,500-3,000 | ~75-100 | Clear local/discrete bedrock | |
conductors. Models as two plates, one | |||||
(Central | |||||
Upper Conductor | 2,000-4,000 | ~50-75 | main western conductor and another | ||
Anomaly) | |||||
immediately east and slightly shallower | |||||
TBW | Western Conductor | ~3,000-6,000 | 50-100 | Complex body with two sources with | |
Eastern Conductor | ~5,000-10,000 | ~50-75 | high conductance | ||
Tank | ~7,000- >>9,000 | ~175 | High conductance anomaly of | ||
reasonably large aerial size | |||||
Chi | ~3,000-6,000 | ~50-75 | Moderate to high conductance with | ||
shallow depth to top | |||||
Lambda C (SW Anomaly) | ~1,000-2,000 | ~60-100 | Clear local/discrete bedrock conductor | ||
with moderate conductance. | |||||
The best results from the RC drilling are summarised in Table 2 below:
Table 2. Summary of best RC drill results at Yarrambee
Hole No | From | To | Width | Au | Ag | Cu | Zn | Pb | Comments | Target | |
(g/t) | (g/t) | (ppm) | (ppm) | (ppm) | |||||||
YERC001 | 61 | 62 | 1 | 0.009 | 3.93 | 838 | 1515 | 1765 | 1m | @ 0.18% Pb and 0.15% Zn | Chi |
from 61m. | |||||||||||
YERC001 | 64 | 65 | 1 | 0.007 | 1.5 | 523 | 1345 | 170 | 1m | @ 0.13% Zn from 64m | Chi |
YERC001 | 70 | 72 | 2 | 0.009 | 2.03 | 1557 | 1192 | 69 | 2m | @ 0.16% Cu and 0.12% Zn | Chi |
from 70m | |||||||||||
YERC002 | 235 | 240 | 5 | 0.023 | 0.91 | 2954 | 216 | 6 | Tank 5m @ 0.3% Cu from 235m | Tank | |
YERC003 | 40 | 41 | 1 | 0.001 | 0.02 | 1110 | 140 | 3 | 1m | @ 0.11% Cu from 40m | Tank |
YERC003 | 42 | 43 | 1 | 0.018 | 0.18 | 1105 | 72 | 9 | 1m | @ 0.11% Cu from 42m | TBW |
YERC003* | 48 | 52 | 4 | 0.023 | 0.59 | 1290 | 185 | 3 | 4m | @ 0.13% from 48m | TBW |
YERC003 | 57 | 59 | 2 | 0.140 | 5.5 | 2.285 % | 241 | 8 | 2m @ 2.29% Cu and 5.5 g/t Ag | TBW | |
from 57m | |||||||||||
YERC003 | 79 | 80 | 1 | 0.013 | 0.19 | 1010 | 138 | 2 | 1m | @ 0.1% Cu from 79m | TBW |
YERC003 | 84 | 85 | 1 | 0.039 | 1.32 | 3080 | 224 | 1 | 1m | @ 0.3% Cu from 84m | TBW |
5m | @ 0.64% Zn and 0.24% Cu | ||||||||||
YERC004 | 120 | 125 | 5 | 0.014 | 0.89 | 2421 | 6433 | 2 | from 120m, including 1m @ 2.0% | TBW | |
Zn from 121m | |||||||||||
YERC004 | 133 | 134 | 1 | 0.003 | 0.25 | 1025 | 169 | 2 | 1m | @ 0.10% Cu from 133m | TBW |
Composites over > 1000 ppm Cu, Pb and Zn. *4m interval sample that needs to be resampled per 1m splits
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ASX Announcement
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TBW Prospect
At the TBW prospect the drilling identified a new promising copper, zinc, and silver target horizon in drill holes YERC003 (2m @ 2.29% Cu and 5.5 g/t Ag from 57m) and YERC004 (5m @ 0.64% Zn and 0.24% Cu from 120m, including 1m @ 2.0% Zn from 121m). See Figures 2 and 3.
Fortunately, downhole EM was completed on YERC003 however due to the poor ground conditions YERC004 collapsed before the survey could be conducted. Modelling of the down hole EM at YERC003 has not yet been completed however it should provide more accurate guidance for the planned follow up RC drilling.
Chi
Tank
ND1-4
TB5-7
TB8-9
Narndee
South
Lambda C
TBW
Figure 2. Location of targets, RC drillholes and those holes with the best intersections at the Narndee Cluster
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ASX Announcement
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Also, encouragingly at TBW the MLEM potentially maps the target horizon to the most southern extent of the survey and may therefore remain open in that direction. The Company geophysicist has recommended that the MLEM be extended further south to close off the EM anomaly in this direction prior to follow-up drilling.
The drilling at TBW not only directly demonstrates the potential for economic base metal at the prospect specifically but also indirectly the potential for new targets horizons to be discovered not only within the Narndee Cluster but also the larger Yarrambee project itself.
Tank & Chi Prospect
Only 2 of the 5 holes planned have been completed at the Tank and Chi prospects (Fig 2). Due to the difficult ground conditions the deeper planned hole YERC007 at Tank did not reach its target depth and both YERC007 and YERC002 collapsed before the downhole EM could be completed.
Due to the lack of downhole EM and no obvious geological intervals that may explain the EM anomaly the Company believes the drilling at Tank is inconclusive and that it is possible YERC007 may have not intersected the target.
The shorter YERC002 hole did make it to its target depth however because there was no downhole EM it cannot be confirmed whether it intersected the EM conductor or whether it was off hole and/or there are further nearby off hole targets. The drill hole was not planned to test the second deeper EM target which YERC007 was designed to intersect.
The Company believes the anomalous results (see Table 2) encountered in YERC002 (Tank target) and YERC001 (drilled at the nearby Chi target) is an indication that the potential remains for significant base metal within the Tank and Chi target areas and that the Company needs to complete the planned programme as well as revisit YERC007.
Narndee South, ND-4 and T5-9 Targets
Due to difficult ground conditions, that significantly slowed the drilling rate, the planned drilling at the Narndee South, ND-4 and T5-9 Targets was not completed. This work will now be completed when drilling resumes at the Narndee Cluster following up the above-mentioned programmes.
Further Work
- Interpretation and modelling of DHEM & FLEM
- Extend the MLEM survey south at TBW target
- follow-upRC drilling at TBW, Tank and Chi
- Complete planned RC drilling at the Narndee South, ND-4 and T5-9 Targets
- Planning is underway for follow-up RC drilling to start sometime in May
- Continue follow-up of targets identified in the AEM survey outside of the Narndee Cluster including Redhead
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Table 3. Drill Hole Collar Summary Table
Target | Hole No | Easting | Northing | Depth | Dip | Azimuth |
CHI | YERC001 | 615802 | 6801446 | 80 | -70 | 270 |
TANK | YERC002 | 615582 | 6801498 | 252 | -55 | 270 |
TBW | YERC003 | 616225 | 6798804 | 110 | -60 | 225 |
TBW | YERC004 | 616339 | 6798766 | 144 | -60 | 225 |
LAMDA-C | YERC005 | 614986 | 6798897 | 216 | -60 | 85 |
TB8-9 | YERC006 | 616158 | 6800437 | 162 | -60 | 10 |
TANK | YERC007 | 615522 | 6801617 | 204 | -60 | 270 |
References
1 | Yarrambee Drilling Update | 01 MAR 2022 |
2 | RC drilling underway at Golden Mile's Yarrambee Project | 01 DEC 2021 |
3 | Ground EM confirms high priority targets at Yarrambee | 08 NOV 2021 |
This Announcement has been approved for release by the Board of Golden Mile Resources Limited.
For further information please contact:
Grant Button - Non-Executive Director
Golden Mile Resources Ltd (ASX: G88)
ABN 35 614 538 402
- (08) 6383 6508
- info@goldenmileresources.com.au
- www.goldenmileresources.com.au
Note 1: Refer ASX announcement on the said date for full details of these results. Golden Mile is not aware of any new information or data that materially affects the information included in the said announcement.
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Golden Mile Resources Ltd. published this content on 09 March 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 09 March 2022 23:12:05 UTC.