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ASX Announcement
ASX: G88
01 March 2022
Yarrambee RC Drilling Update
Golden Mile Resources Ltd (ASX: G88; "the Company") would like to provide an update on the status of the Yarrambee RC drilling.
- Assay results expected in approximately 3 weeks
- Data from downhole and ground EM has been received
- Further ground MLEM required at TBW target
- Further drilling required within the Narndee Cluster
As previously reported, Golden Mile Resources Ltd completed 7 reverse circulation ("RC") drill holes for 1,168m in December 2021.1 In addition to the drilling the Company completed downhole electromagnetic geophysical surveys ("DHEM") on 4 of the holes as well as a fixed loop ground electromagnetic ("FLEM") geophysical survey at the TBW target.
The laboratory analysing the samples submitted from the Yarrambee RC drilling has indicated that the assay results are expected to be received by the Company in approximately 3 weeks. The data from downhole EM ("DEH") and fixed loop ground EM ("FLEM") carried out after the drilling was completed has now also been received by the Company's consultant geophysicist.
The RC drill programme was the commencement of the systematic testing of base metal (Cu, Ni, Zn, Pb) targets at Yarrambee identified in a geophysical helicopter airborne electromagnetic ("AEM") survey and follow-up moving loop electromagnetic ("MLEM") survey carried in the December 2021 Quarter.2 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).
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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Table 1. Yarrambee MLEM targets.
only | Prospect | Target | Conductance | Depth to | Comment |
(S) | top (m) | ||||
Lower Conductor | 1,500-3,000 | ~75-100 | Clear local/discrete bedrock | ||
Narndee | conductors. Models as two | ||||
South | plates, one main western | ||||
(Central | Upper Conductor | 2,000-4,000 | ~50-75 | conductor and another | |
Anomaly) | immediately east and slightly | ||||
shallower | |||||
Western Conductor | ~3,000-6,000 | 50-100 | Complex body with two | ||
TBW | sources with high | ||||
Eastern Conductor | ~5,000-10,000 | ~50-75 | |||
use | conductance | ||||
High conductance anomaly | |||||
Tank | ~7,000- >>9,000 | ~175 | of reasonably large aerial | ||
size | |||||
Moderate to high | |||||
Chi | ~3,000-6,000 | ~50-75 | conductance with shallow | ||
depth to top | |||||
Clear local/discrete bedrock | |||||
Lambda C (SW Anomaly) | ~1,000-2,000 | ~60-100 | conductor with moderate | ||
For personal | conductance. | ||||
Figure 2. Yarrambee MLEM survey and targets within the Narndee cluster with modelled conductance (Siemens). Main image is a CH30 B-field (Total Field) anomaly map with background 25Hz base CH23 B-field (Z component) from the XCITETM HEM survey.
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The RC holes were designed to test EM plates modelled from the MLEM data. The holes were sampled where there were anomalous base metal concentrations using the handheld XRF machine. The summary of the sample intervals, lithology ad description of sulphide types is summarised in Table 2 and locations shown on Figure 3.
Table 2. Drill Hole Sample Interval Summary for Yarrambee RC Drilling
Target | Hole ID | Fro | To | Width | Lithology | Sulphide style | Sulphides | DHEM |
m | Minerals | |||||||
CHI | YERC00 | 61 | 72 | 11 | Basalt, | Up to 40% | pyrite, sphalerite, | No |
1 | ultramafic | Disseminated | chalcopyrite | |||||
Tank | YERC00 | 235 | 240 | 5 | basalt | Up to 15% | pyrite, sphalerite | No |
2 | Disseminated | |||||||
TBW | YERC00 | 50 | 51 | 1 | basalt | Up to 10% | pyrite | Yes |
3 | Disseminated | |||||||
TBW | YERC00 | 122 | 125 | 3 | basalt | Up to 5% | pyrite | No |
4 | Disseminated | |||||||
Lambda- | YERC00 | 161 | 168 | 7 | Shale, rhyolite | Up to 5% | pyrite/pyrrhotite | Yes |
C | 5 | Disseminated | ||||||
YERC00 | Ironstone, | Up to 20% | ||||||
TB8-9 | 124 | 160 | 6 | ultramafic, | pyrite | Yes | ||
6 | Disseminated | |||||||
basalt | ||||||||
Tank | YERC00 | 193 | 201 | 8 | basalt | Up to 10% | pyrite, sphalerite, | No |
7 | Disseminated | chalcopyrite | ||||||
Ground conditions were difficult and 4 of the 7 holes collapsed before casing for DHEM could be installed resulting in only 3 holes surveyed. DHEM provides a more accurate assessment whether the target conductor was intersected, the nature of the conductor and whether there are areas off hole that require further drilling. An assessment whether further drilling is required to collect DHEM in some of these areas will be made once the results are received.
In addition to the DHEM a small ground FLEM survey was completed at the TBW target and is now recommended by the Company's geophysical consultant that the ground MLEM be extended south of this prospect where it is thought that there are possible additional conductors.
The poor ground conditions affected the drilling at the Tank target where it is not clear whether the target was intersected in the deeper YERC002 drill hole. Additionally, hole YERC007 does not appear to have reached a second deeper EM plate model.
The Company's Yarrambee Project covers prospective portions of the Narndee Igneous Complex ("NIC") approximately 500 km north-east of Perth, within the Murchison Region of Western Australia (Fig 1).
Golden Mile's Yarrambee Project is adjacent to tenements held by Aldoro Resources Ltd (ARN:ASX) and comprises more than 800 km2 of tenements covering the NIC. The Company considers the project prospective for Ni-Cu-PGE mineralisation (e.g., Voisey's Bay, Nova, Julimar), and Volcanogenic Massive Sulphide (VMS) Cu-Zn mineralisation (e.g., Golden Gove, DeGrussa).
Further Work
- Interpretation and modelling of DHEM & FLEM to commence once assays are received
- Follow-upRC drilling where required
- Extend the MLEM survey south at TBW target
- Continue follow-up of targets identified in the AEM survey outside of the Narndee Cluster including Redhead
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Figure 3. Plan showing location of drill holes and EM plate models at the Narndee Cluster
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Table 3. Drill Hole Location 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 | Quarterly Activities Report | 31 | JAN 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 28 February 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 01 March 2022 00:07:13 UTC.