Mann mit Smartphone und Tablet (Symbolbild).
Quelle: - © metamorworks / iStock / Getty Images Plus / Getty Images:
Google
PR Newswire  | 

Beta Hunt Drilling Update

Canada NewsWire

play Anhören
share Teilen
feedback Feedback
copy Kopieren
newsletter
font_big Schrift vergrößern
Westgold Resources Ltd 3,88 $ Westgold Resources Ltd Chart -0,31%
Zugehörige Wertpapiere:

Fletcher Drilling Continues to Impress while Mason Zone Emerges

PERTH, Western Australia, Feb. 18, 2025 /CNW/ - Westgold Resources Limited (ASX: WGX) (TSX: WGX) (Westgold or the Company) is pleased to provide an update on resource development drilling activities at the Beta Hunt mine at Kambalda, Western Australia. This includes further results from Westgold's inaugural drilling program at the Fletcher Zone and details of planned drilling of the potential southern extension of Fletcher (the Mason Zone target).

Highlights

BETA HUNT (Fletcher Zone)

  • Additional large, high-grade drilling intervals returned at Fletcher including:
    • 41.00m at 7.99 g/t Au and 19.00m at 5.95 g/t Au in hole FF475SP-62AE; and
    • 38.00m at 6.80 g/t Au in hole WF440VD-55AE.
  • Five drill rigs operating at Fletcher
  • Maiden Mineral Resource Estimate - to be released to the market late Q4,FY25.

BETA HUNT (Mason Zone)

  • Mason zone target interpreted as the southern fault offset extension of the Fletcher zone with the combined strike length of the two zones (Mason + Fletcher) now ~4km
    • Mason drill programs expected to commence in Q4 FY25

Westgold Managing Director and CEO Wayne Bramwell commented:

"Westgold is mining two zones at Beta Hunt now - Fletcher will be the third. We already have access into Fletcher and once drilled, it will be an additional and independent source of ore production.

At Mason, it is too early to speculate on its scale and significance. The historical drilling results here are encouraging, with some of the better results including 19.00m @ 10.73g/t Au, 35.35m @ 3.50g/t Au, 38.00m @ 2.87g/t Au and 5.20m @ 20.67g/t Au. Our early interpretation is Mason is the faulted offset of the Fletcher Zone, and if so would take the combined strike length to circa 4km.

Unlocking value at Beta Hunt requires building a robust understanding of the various Beta Hunt orebodies with a long term mine plan focussed on maximising cash flow. The next step is to deliver a mineral resource estimate for Fletcher which we expect to announce to the market late in Q4 FY25."

BETA HUNT EXPLORATION UPDATE

Since acquiring the Beta Hunt operation, the Company has moved quickly to identify and test priority exploration targets. This work commenced with the Stage 1 Fletcher Zone Resource Definition program in November 2024 with two drill rigs, and has continued into 2025 with five drill rigs now in operation.

In addition to the Fletcher program, the Exploration Team has been compiling historical data and building a new 3D geological model for the entire sublease area. While this work continues, the Mason Zone has been identified as an early priority target with drill testing to commence in Q4 FY25.

Fletcher Zone

Drilling focused on defining Stage 1 Exploration Target

In September 2024, Westgold announced a JORC and NI43-101 compliant Exploration Target for the Fletcher Zone at Beta Hunt[1]. This included a Stage 1 Exploration Target (Table 1) which is a subset of the Global Fletcher Exploration Target and located at the southern half of the currently identified ~2km of strike which is the subject of Westgold's initial drilling program (Figures 1 & 2).

Table 1 – Fletcher Zone Stage 1 Exploration Target (A subset of the Global Exploration Target).

Tonnes (Mt)

Low

Tonnes (Mt)

High

Grade (g/t Au)

Low

Grade (g/t Au)

High

Contained Gold (Moz)

Low

Contained Gold (Moz)

High

12.0

16.0

2.1

2.5

0.8

1.2

 

The potential quantity and grade of the Exploration Target is conceptual in nature and, as such, there has been insufficient exploration drilling conducted to estimate a Mineral Resource. At this stage it is uncertain if further exploration drilling will result in the estimation of a Mineral Resource. The Exploration Target has been prepared in accordance with the JORC Code (2012).

______________________________________________
1
Refer Westgold ASX/TSX release of 16 September 2024 – "Fletcher Exploration Target Defined at 1.6 - 2.1Moz Au"

Drilling Results - Highlights

Since its acquisition of Beta Hunt, Westgold has been rapidly increasing the drill fleet available to site, enabling improved rates of drilling and data capture. Seven drill rigs are now operating at Beta Hunt, with three of these rigs being Westgold owned and operated. Five drill rigs are actively drilling Fletcher with better results subsequent to the end of Q2 FY25, including:

  • 41.00m at 7.99 g/t Au from 426m and 19.00m at 5.95 g/t Au from 331m in FF475SP-62AE;
  • 38.00m at 6.80 g/t Au from 274m in WF440VD-55AE[2].

Results previously released in the Q2 FY25 Quarterly Report include[3]:

  • 31m at 5.63 g/t Au from 228m in WF440VD-54AE; and
  • 37m at 4.28 g/t Au from 477m in WF440DD-31AE.

Particularly high-grade intercepts include:

  • 6.6m at 41.84 g/t Au from 516m in WF440N1-05AE;
  • 4.00m at 22.45 g/t Au from 421m in WF440N1-01AR; and
  • 5.50m at 15.59 g/t Au from 165m in WF440N1-06AE.

These results highlight the quality and scale of the mineralisation being encountered at Fletcher.

______________________________________________
2
Q2 FY25 interval extended by additional assays received post quarter.

3 Refer Westgold ASX/TSX release Q2 FY25 Quarterly Report released to ASX on 23 January 2025

Mason Zone

Since taking ownership of the Beta Hunt operation, the Company has been compiling and reinterpreting the available extensive historical drilling information with the aim of building a new comprehensive 3D geological model of the entire Beta Hunt lease area. While this work is well advanced, a significant number of historical Western Mining Corporation (WMC) nickel drill holes that have never been assayed for gold were identified.

These drill holes represent an outstanding exploration data source that Westgold has commenced re-logging and assaying for gold in key areas within the sub-lease boundary to allow completion of the new 3D model.

During the 3D model building process, the significance of the Mason Zone target area was highlighted and is now interpreted to be the southern extension of the Fletcher Zone, south of the Alpha Island Fault (AIF) (Figures 1 & 5). This is consistent with the known movement on this important fault where the Larkin Zone is interpreted to be the southern continuation of Western Flanks.

The Mason Zone, which is interpreted to be ~1.8km long, has been intersected by a modest number of historical drill holes with most of these in a fan at the northern end of the zone, proximal to the AIF.

The identified historical drill holes at Mason have returned some outstanding gold intersections which are summarised below, shown on Figure 5 and detailed in Appendix B:

  • 19.00m @ 10.73g/t Au in hole BM1941SP3-01AE;
  • 13.00m @ 5.97g/t Au in hole BM1890-25AE;
  • 8.00m @ 13.03g/t Au in hole BM1740-19AE;
  • 18.00m @ 2.47g/t Au in hole BM1941SP3-14AE;
  • 5.00m @ 10.88g/t Au in hole BM1941SP3-03AE;
  • 5.20m@ 20.67g/t Au in hole LD4005;
  • 35.35m @ 3.50g/t Au in hole BE19-292;
  • 16.74m @ 3.17g/t Au in hole BE19-311;
  • 21.00m @ 2.13g/t Au in hole BE19-314; and
  • 38.00m @ 2.87g/t Au in hole BE19-313.

Looking Forward

Fletcher will be a separate and independent source of production, and the maiden MRE will be the basis of developing a robust mine plan and infrastructure strategy capable of supporting the natural production rate of the mineralised system.

Westgold's Stage 1 drilling program at Fletcher has been designed with the intent to produce sufficient data to allow the development of a maiden MRE for Fletcher. With 74% of the program completed to date, Westgold is steadily advancing on this goal, and the Company remains focused on acquiring enough data to enable a maiden MRE to be undertaken for the Fletcher zone as soon as possible.

On completion of the Stage 1 drilling of Fletcher, drilling will commence at Mason. By thoroughly exploring Mason, Westgold aims to confirm its potential as a faulted offset of the Fletcher Zone and to extend the known strike length of this under drilled mineralised gold system.

This announcement is authorised for release to the ASX by the Board.

Appendix - Beta Hunt Background

The Beta Hunt operation, located at Kambalda 600km east of Perth, was acquired by Westgold as part of the August 2024 merger with TSX listed Karora Resources (Karora).

Fletcher is a substantial discovery made by Karora at Beta Hunt. Fletcher is interpreted to represent the fault offset extension to the Mason mineralised structure paralleling the ~1.6Moz Western Flanks deposit, approximately 300m to the west. Like in Western Flanks, mineralisation is comprised of sheared albite-biotite-pyrite altered and irregularly quartz veined basalt.

While discovered in 2016, resource definition drilling only commenced in earnest in 2023 with 32 holes having been drilled into the +2km long mineralised system prior to the Westgold – Karora merger.

Fletcher's position and scale presents a significant opportunity for Westgold to enhance output from Beta Hunt. Revealed geology to date suggest that the Fletcher zone mineralisation is comparable in scale to the current Beta Hunt footprint (Figure 1), and the offset from current Western Flanks and A Zone mining areas suggests that production from Fletcher will be independent from the rest of the mine and could be decoupled from the current production sequence (Figure 3).

______________________________________________
4
Westgold's Beta Hunt mine is hosted within a sub-lease where overlying tenure is held by the St. Ives Gold Mining Company.

Competent/Qualified Person Statements

Exploration Results and Mineral Resource Estimates

The information in this release that relates to Fletcher Exploration results and Mineral Resource Estimates is compiled by Westgold technical employees and contractors under the supervision of Mr. Jake Russell B.Sc. (Hons), who is a member of the Australian Institute of Geoscientists and who has verified, reviewed and approved such information. Mr Russell is a full-time employee of the Company and has sufficient experience which is relevant to the styles of mineralisation and types of deposit under consideration and to the activities which he is undertaking 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 (the "JORC Code") and as a Qualified Person as defined in the CIM Guidelines and National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101"). Mr. Russell is an employee of the Company and, accordingly, is not independent for purposes of NI 43-101. Mr Russell consents to and approves the inclusion in this release of the matters based on his information in the form and context in which it appears. Mr Russell is eligible to participate in short- and long-term incentive plans of the company.

The information in this release that relates to Mason Exploration results is compiled by Westgold technical employees and contractors under the supervision of Mr. Simon Rigby B.Sc. (Hons), who is a member of the Australian Institute of Geoscientists and who has verified, reviewed and approved such information. Mr Rigby is a full-time employee of the Company and has sufficient experience which is relevant to the styles of mineralisation and types of deposit under consideration and to the activities which he is undertaking 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 (the "JORC Code") and as a Qualified Person as defined in the CIM Guidelines and National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101"). Mr. Rigby is an employee of the Company and, accordingly, is not independent for purposes of NI 43-101. Mr Rigby consents to and approves the inclusion in this release of the matters based on his information in the form and context in which it appears. Mr Rigby is eligible to participate in short- and long-term incentive plans of the company.

General

Mineral Resources, Ore Reserve Estimates and Exploration Targets and Results are calculated in accordance with the JORC Code. The other technical and scientific information in this release has been prepared in accordance with the Canadian regulatory requirements set out in NI 43-101 and has been reviewed on behalf of the company by Qualified Persons, as set forth above.

This release contains references to estimates of Mineral Resources. The estimation of Mineral Resources is inherently uncertain and involves subjective judgments about many relevant factors. Mineral Resources that are not Ore Reserves do not have demonstrated economic viability. The accuracy of any such estimates is a function of the quantity and quality of available data, and of the assumptions made and judgments used in engineering and geological interpretation, which may prove to be unreliable and depend, to a certain extent, upon the analysis of drilling results and statistical inferences that may ultimately prove to be inaccurate. Mineral Resource estimates may require re-estimation based on, among other things: (i) fluctuations in the price of gold; (ii) results of drilling; (iii) results of metallurgical testing, process and other studies; (iv) changes to proposed mine plans; (v) the evaluation of mine plans subsequent to the date of any estimates; and (vi) the possible failure to receive required permits, approvals and licenses.

The key inputs and assumptions are provided in Appendix D to this release including Section 1 – Sampling Techniques and Data, Section 2 – Reporting of Exploration Results, Section 3 – Estimation and Reporting of Mineral Resources and Section 4 – Estimation and Reporting of Ore Reserves.

Forward looking statements

These materials prepared by Westgold Resources Limited include forward looking statements. Often, but not always, forward looking statements can generally be identified by the use of forward looking words such as "may", "will", "expect", "intend", "believe", "forecast", "predict", "plan", "estimate", "anticipate", "continue", and "guidance", or other similar words and may include, without limitation, statements regarding plans, strategies and objectives of management, anticipated production or construction commencement dates and expected costs or production outputs.

Forward looking statements inherently involve known and unknown risks, uncertainties and other factors that may cause the Company's actual results, performance and achievements to differ materially from any future results, performance or achievements. Relevant factors may include, but are not limited to, changes in commodity prices, foreign exchange fluctuations and general economic conditions, increased costs and demand for production inputs, the speculative nature of exploration and project development, including the risks of obtaining necessary licenses and permits and diminishing quantities or grades of reserves, political and social risks, changes to the regulatory framework within which the Company operates or may in the future operate, environmental conditions including extreme weather conditions, recruitment and retention of personnel, industrial relations issues and litigation.

Forward looking statements are based on the Company and its management's good faith assumptions relating to the financial, market, regulatory and other relevant environments that will exist and affect the Company's business and operations in the future. The Company does not give any assurance that the assumptions on which forward looking statements are based will prove to be correct, or that the Company's business or operations will not be affected in any material manner by these or other factors not foreseen or foreseeable by the Company or management or beyond the Company's control.

Although the Company attempts and has attempted to identify factors that would cause actual actions, events or results to differ materially from those disclosed in forward looking statements, there may be other factors that could cause actual results, performance, achievements or events not to be as anticipated, estimated or intended, and many events are beyond the reasonable control of the Company. In addition, the Company's actual results could differ materially from those anticipated in these forward looking statements as a result of the factors outlined in the "Risk Factors" section of the Company's continuous disclosure filings available on SEDAR+ or the ASX, including, in the Company's current annual report, half year report or most recent management discussion and analysis.

Accordingly, readers are cautioned not to place undue reliance on forward looking statements. Forward looking statements in these materials speak only at the date of issue. Subject to any continuing obligations under applicable law or any relevant stock exchange listing rules, in providing this information the Company does not undertake any obligation to publicly update or revise any of the forward-looking statements or to advise of any change in events, conditions or circumstances.

APPENDIX A – WESTGOLD FLETCHER DRILL RESULTS

All widths are downhole. Coordinates are for hole collars. Grid is MGA 1994 Zone 50. Significant intervals are = >5g/m for areas of known resources and >2g/m for exploration.

Results in bold are subsequent to FY2025 Q2 and are previously unreported.

Hole

Collar N

Collar E

Collar RL

Intercept (Downhole)

From (m)

Dip

 Azi

EFDDSP1-49AE

6,543,700

375,633

-502

23.00m at 1.95g/t Au

708

-30

238





47.00m at 1.65g/t Au

760







4.00m at 1.32g/t Au

823







10.00m at 1.51g/t Au

928







9.00m at 1.15g/t Au

951







6.00m at 1.05g/t Au

1,001







18.40m at 0.8g/t Au

1,049







5.50m at 1.24g/t Au

1,076



EFDDSP1-51AE

6,543,700

375,633

-502

4.00m at 1.80 g/t Au

681

-35

239





36.00m at 0.99 g/t Au

775







6.00m at 2.19 g/t Au

834







12.00m at 0.98 g/t Au

856



FF475SP-61AE

6,543,693

375,042

-474

3.00m at 2.78 g/t Au

99







8.00m at 0.67 g/t Au

161







23.00m at 1.24 g/t Au

238







7.00m at 2.23 g/t Au

265







6.00m at 2.02 g/t Au

388



FF475SP-62AE

6,543,693

375,042

-474

11.00m at 1.53 g/t Au

124

-52

225





8.00m at 0.87 g/t Au

146







10.00m at 3.55 g/t Au

229







13.00m at 0.47 g/t Au

270







19.00m at 5.95 g/t Au

331







41.00m at 7.99 g/t Au

426







7.00m at 1.37 g/t Au

596







7.00m at 0.80 g/t Au

629







15.00m at 4.02 g/t Au

643







5.45m at 2.04 g/t Au

684



WF440DD-22AR

6,543,666

375,051

-433

NSI




WF440DD-26AE

6,543,651

375,056

-433

15.00m at 4.63g/t Au

219

-41

245





9.00m at 0.73g/t Au

294







19.00m at 1.19g/t Au

339







3.00m at 3.11g/t Au

411







6.00m at 1.91g/t Au

484







20.00m at 0.61g/t Au

620







6m at 6.89g/t Au

667







17m at 6.65g/t Au

676



WF440DD-27AE

6,543,651

375,056

-433

4m at 2.29g/t Au

138

-50

225





22.7m at 1.67g/t Au

154







4m at 2.04g/t Au

179







12m at 0.46g/t Au

270







19m at 3.69g/t Au

335







11m at 0.84g/t Au

362







5.4m at 1.88g/t Au

398







3m at 2.67g/t Au

488







4m at 1.92g/t Au

509







3m at 2.01g/t Au

559







27m at 1.5g/t Au

582







45m at 0.75g/t Au

647



WF440DD-31AE

6,543,651

375,056

-433

11m at 0.76g/t Au

149

-60

220





7.9m at 0.68g/t Au

168







28m at 0.73g/t Au

179







11m at 0.9g/t Au

248







3m at 2.16g/t Au

298







12m at 4.13g/t Au

459







37m at 4.28g/t Au

477







7m at 1.93g/t Au

544







10m at 2.54g/t Au

609







8m at 0.93g/t Au

704







15m at 2.06g/t Au

717



WF490DD-42AE

6,543,672

374,950

-484

17m at 2.05g/t Au

206

-34

247





15m at 3.51g/t Au

307



WF490DD-46AE

6,543,672

374,950

-484

7m at 3.35g/t Au

152

-49

251





27.64m at 0.92g/t Au

306







7.05m at 4.8g/t Au

354







11m at 1.65g/t Au

369







4m at 2.01g/t Au

500







11m at 2.41g/t Au

561







14m at 2.34g/t Au

588







3m at 2.01g/t Au

611



WF440N1-01AR

6,543,788

375,045

-437

5.00m at 2.78g/t Au

-

-14

254





1.00m at 7.00g/t Au

54







5.00m at 4.14g/t Au

304







3.00m at 1.94g/t Au

316







4.65m at 7.71g/t Au

333







8.00m at 5.26g/t Au

342







4.00m at 3.24g/t Au

353







8.12m at 7.52g/t Au

371







2.45m at 2.65g/t Au

412







4.00m at 22.45g/t Au

421



WF440N1-02AR

6,543,788

375,045

-437

4.00m at 1.53g/t Au

52

-22

255

WF440N1-03AR

6,543,788

375,045

-437

7.00m at 2.67g/t Au

-

-29

254





4.00m at 3.51g/t Au

433







1.00m at 5.17g/t Au

442







7.00m at 3.36g/t Au

497







15.00m at 3.07g/t Au

507







5.00m at 2.83g/t Au

667







3.00m at 1.70g/t Au

676







4.05m at 1.97g/t Au

688







1.00m at 5.01g/t Au

740



WF440N1-04AE

6,543,788

375,045

-437

6.00m at 6.39g/t Au

-

-20

263





6.00m at 1.89g/t Au

435







1.00m at 8.21g/t Au

503



WF440N1-05AE

6,543,787

375,045

-437

7m at 2.68g/t Au

-

-27

263





16.7m at 0.31g/t Au

75







14.2m at 1.16g/t Au

117







4m at 2.74g/t Au

461







38m at 0.73g/t Au

476







6.6m at 41.84g/t Au

516







7m at 0.92g/t Au

550







9m at 0.68g/t Au

575







17m at 1.2g/t Au

602







3m at 1.77g/t Au

636







3m at 3.7g/t Au

654







8m at 3.16g/t Au

862



WF440N1-06AE

6,543,788

375,045

-437

6.00m at 7.86g/t Au

-

-32

262





0.40m at 17.51g/t Au

152







5.50m at 15.59g/t Au

165







7.00m at 1.98g/t Au

255







4.40m at 2.48g/t Au

456







5.00m at 6.76g/t Au

468







6.00m at 4.87g/t Au

477







1.00m at 6.34g/t Au

503







3.90m at 2.13g/t Au

587







11.60m at 1.92g/t Au

594







2.35m at 2.23g/t Au

625







6.20m at 1.65g/t Au

636







4.00m at 1.92g/t Au

660







5.00m at 2.40g/t Au

682



WF440DD-09AR

6,543,667

375,051

-433

NSI

-

-14

234

WF440N1-21AE

6,543,788

375,045

-437

7.00m at 3.20g/t Au

-

-22

254





5.00m at 1.62g/t Au

50







5.00m at 10.95g/t Au

368







4.00m at 7.17g/t Au

376







1.00m at 18.69g/t Au

389







7.00m at 7.97g/t Au

454







3.00m at 5.16g/t Au

573







4.90m at 1.73g/t Au

588







6.00m at 1.24g/t Au

596







2.20m at 3.81g/t Au

632



WF440VD-53AE

6,543,694

374,992

-437

8.5m at 2.12g/t Au

188

-10

249

WF440VD-54AE

6,543,694

374,992

-437

31m at 5.63g/t Au

228

-10

265





7m at 0.83g/t Au

266







4m at 6.15g/t Au

279







36m at 1.5g/t Au

293



WF440VD-55AE

6,543,694

374,992

-437

38.00m at 6.80 g/t Au

274

-10

278





3.00m at 13.46 g/t Au

330







13.00m at 2.05 g/t Au

341







10.00m at 1.26 g/t Au

417







3.00m at 1.91 g/t Au

443



APPENDIX B – HISTORICAL MASON DRILL RESULTS

All widths are downhole. Coordinates are for hole collars. Grid is MGA 1994 Zone 50. Significant intervals are = >5g/m for areas of known resources and >2g/m for exploration.

Hole

Collar N

Collar E

Collar RL

Intercept (Downhole)

From (m)

Dip

 Azi

EOH

BE19-451

654237

37539

-415

14.00m @ 7.47 g/t Au

44

-17

227

80





8.60m @ 1.08 g/t Au

61




BLB16-06AE

6541997

375929

-458

2.00m @ 0.30 g/t Au

87

-27

232

507





14.00m @ 2.31 g/t Au

138








4.00m @ 1.12 g/t Au

195








4.50m @ 2.32 g/t Au

263.5




BM1740-19AE

6542823

375332

-392

12.50m @ 0.81 g/t Au

0

-31

255

693





5.00m @ 1.06 g/t Au

17








9.00m @ 2.66 g/t Au

33








2.00m @ 7.95 g/t Au

45








7.00m @ 2.70 g/t Au

78








11.00m @ 1.22 g/t Au

88








2.00m @ 1.66 g/t Au

136








18.00m @ 2.46 g/t Au

151








2.39m @ 4.96 g/t Au

181.61








9.00m @ 1.27 g/t Au

188








2.00m @ 2.99 g/t Au

272








9.00m @ 6.29 g/t Au

377








8.00m @ 13.03 g/t Au

483








5.00m @ 5.75 g/t Au

507








6.75m @ 4.36 g/t Au

560




BM1890-21AE

6542769

375339

-387

29.80m @ 0.96 g/t

1.3

-17

227

317





3.35m @ 0.42 g/t

81.35








6.40m @ 0.27 g/t

90.6








16.00m @ 3.12 g/t

100








3.00m @ 2.40 g/t

171








17.00m @ 1.04 g/t

204








3.90m @ 0.91 g/t

227.1




BM1890-22AE

6542769

375339

-388

2.00m @ 1.52 g/t

115

-36

295

347





24.00m @ 1.33 g/t

120








45.00m @ 1.94 g/t

199








26.00m @ 3.00 g/t

250




BM1890-23AE

6542767

375338

-387

13.50m @ 3.67 g/t

62.5

-40

296

438





13.00m @ 1.49 g/t

94








3.00m @ 1.03 g/t

118








21.00m @ 1.09 g/t

125








7.00m @ 1.37 g/t

149








6.00m @ 1.53 g/t

187








7.00m @ 2.40 g/t

244




BM1890-24AE

6542766

375338

-387

6.60m @ 1.74 g/t

0

-24

277

383





21.00m @ 2.47 g/t

42








16.00m @ 1.38 g/t

66








14.00m @ 1.67 g/t

142








4.00m @ 2.32 g/t

167








9.00m @ 1.13 g/t

222








14.00m @ 1.33 g/t

249








4.60m @ 1.52 g/t

293




BM1890-25AE

6542766

375338

-388

9.00m @ 2.06 g/t

0

-44

237

432





2.00m @ 1.62 g/t

179








19.70m @ 1.21 g/t

273








3.50m @ 1.39 g/t

299.5








13.00m @ 5.97 g/t

414




BM1941SP3-01AE

6542439

375424

-406

8.00m @ 2.31 g/t

92

-51

247

399





19.00m @ 10.73 g/t

302




BM1941SP3-02AE

6542438

375425

-405

2.00m @ 1.77 g/t

12

-39

220

366





6.00m @ 1.22 g/t

62








11.00m @ 3.67 g/t

88








10.00m @ 7.54 g/t

157








4.95m @ 7.00 g/t

244.05




BM1941SP3-03AE

6542439

375424

-405

4.00m @ 2.01 g/t

0

-33

274

339





15.00m @ 1.74 g/t

33








6.50m @ 1.57 g/t

51.5








3.00m @ 1.66 g/t

110








5.00m @ 10.88 g/t

191








3.00m @ 19.10 g/t

256








11.00m @ 1.82 g/t

296








8.00m @ 1.01 g/t

330




BM1941SP3-08AE

6542440

375424

-405

2.00m @ 2.48 g/t

52

-39

287

450





11.68m @ 2.79 g/t

109.32








10.00m @ 1.46 g/t

311








3.00m @ 3.43 g/t

416








15.00m @ 2.92 g/t

423




BM1941SP3-09AE

6542439

375424

-4062

5.00m @ 1.44 g/t

151

-54

270

483





5.00m @ 4.25 g/t

241








14.00m @ 2.31 g/t

366








8.80m @ 5.24 g/t

401.2








3.00m @ 9.04 g/t

422




BM1941SP3-11AE

6542436

375428

-406

7.00m @ 2.71 g/t

10

-45

198

487





3.00m @ 2.76 g/t

79








9.40m @ 2.31 g/t

153.6








3.00m @ 3.29 g/t

169








7.00m @ 1.91 g/t

190








6.00m @ 1.27 g/t

272








10.00m @ 1.07 g/t

310








5.00m @ 3.79 g/t

391




BM1941SP3-12AE

6542436

375428

-405

NSA





BM1941SP3-13AE

6542440

375424

-405

7.00m @ 1.68 g/t

53

-18

288

477





16.00m @ 1.07 g/t

64








10.00m @ 1.95 g/t

83








6.00m @ 1.51 g/t

372








3.00m @ 3.04 g/t

404








3.00m @ 3.22 g/t

430




BM1941SP3-14AE

6542440

375424

-405

11.00m @ 2.64 g/t

60

-31

283

428





5.00m @ 4.42 g/t

82








5.00m @ 11.90 g/t

90








6.00m @ 1.00 g/t

104








3.00m @ 2.63 g/t

274








18.00m @ 2.47 g/t

341








8.00m @ 7.12 g/t

367




BMB13-05AE

6542350

375841

-401

9.70m @ 1.73 g/t

109.3

-24

235

735





7.00m @ 1.47 g/t

167








18.00m @ 1.74 g/t

238








5.00m @ 0.42 g/t

266








4.00m @ 1.38 g/t

278








2.00m @ 0.46 g/t

335








4.00m @ 1.44 g/t

349








9.00m @ 1.46 g/t

388








10.50m @ 2.78 g/t

418








2.06m @ 3.01 g/t

465.94




BMB16-08AE

6541899

375982

-471

5.00m @ 0.93 g/t

241

-23

218

486





17.00m @ 1.23 g/t

306








2.40m @ 5.26 g/t

436




K90C-01NE

6541642

374865

288

6.00m @ 0.57 g/t

1070

-63

58

1178

K90C-01NE-W1

6541642

374865

288

NSA


-63

58

1095

K90C-01NE-W1A

6541642

374865

288

Not Assayed


-63

58

1048

K90C-01NE-W1B

6541642

374865

288

NSA


-63

58

1135

BE19-292

6542325

375533

-415

15.30m @ 9.79 g/t

162.1

-4

268

332





35.35m @ 50.50 g/

245




BE19-311

6542439

375424

-405

2.00m @ 0.60 g/t

28.7

-0

252

245





16.74m @ 3.17 g/t

84.5




BE19-313

6542439

375424

-405

38.00m @ 2.87 g/t

68

-3

297

299





41.00m @ 1.01 g/t

120




BE19-314

6542439

375424

-405

39.00m @ 1.97 g/t

69

-7

288

307





3.80m @ 1.19 g/t

230




BE19-315

6542439

375424

-405

21.00m @ 2.13 g/t

77

-0

288

254





7.00m @ 2.56 g/t

108








7.80m @ 4.76 g/t

208.3




LD4005

6541472

375758

288

5.20m @ 20.67 g/t

780.8

-90

0

850





3.00m @ 4.41 g/t

796








33.00m @ 0.70 g/t

817




 

APPENDIX C – JORC 2012 TABLE 1 – GOLD DIVISION

SECTION 1: SAMPLING TECHNIQUES AND DATA

(Criteria in this section apply to all succeeding sections.)

Criteria

JORC Code Explanation

Commentary

Sampling techniques

 

 

 

Drilling techniques

 

 

 

Drill sample recovery

  • Nature and quality of sampling (e.g. 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.
  • Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.
  • 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 (e.g. '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 (e.g. submarine nodules) may warrant disclosure of detailed information.
  • Drill type (e.g. core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc.) and details (e.g. 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.).
  • Method of recording and assessing core and chip sample recoveries and results assessed.
  • Measures taken to maximise sample recovery and ensure representative nature of the samples.
  • 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.

 

  • Diamond Drilling

A significant portion of the data used in resource calculations has been gathered from diamond core. Multiple sizes have been used historically. This core is geologically logged and subsequently halved for sampling. Grade control holes may be whole-cored to streamline the core handling process if required.

 

  • Face Sampling

At each of the major past and current underground producers, each development face / round is horizontally chip sampled. The sampling intervals are domained by geological constraints (e.g. rock type, veining and alteration / sulphidation etc.). The majority of exposures within the orebody are sampled.

 

  • Sludge Drilling

Sludge drilling at is performed with an underground production drill rig. It is an open hole drilling method using water as the flushing medium, with a 64mm (nominal) hole diameter. Sample intervals are ostensibly the length of the drill steel. Holes are drilled at sufficient angles to allow flushing of the hole with water following each interval to prevent contamination. Sludge drilling is not used to inform resource models.

 

  • RC Drilling

Drill cuttings are extracted from the RC return via cyclone. The underflow from each interval is transferred via bucket to a four-tiered riffle splitter, delivering approximately three kilograms of the recovered material into calico bags for analysis. The residual material is retained on the ground near the hole. Composite samples are obtained from the residue material for initial analysis, with the split samples remaining with the individual residual piles until required for re-split analysis or eventual disposal.

 

  • RAB / Aircore Drilling

Combined scoops from bucket dumps from cyclone for composite. Split samples taken from individual bucket dumps via scoop. RAB holes are not included in the resource estimate.

 

  • Blast Hole Drilling

Cuttings sampled via splitter tray per individual drill rod. Blast holes not included in the resource estimate.

All geology input is logged and validated by the relevant area geologists, incorporated into this is assessment of sample recovery. No defined relationship exists between sample recovery and grade. Nor has sample bias due to preferential loss or gain of fine or coarse material been noted.

Logging

 

 

  • Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate Mineral Resource estimation, mining studies and metallurgical studies.
  • Whether logging is qualitative or quantitative in nature. Core (or costean, channel, etc.) photography.
  • The total length and percentage of the relevant intersections logged

 

  • Westgold surface drill-holes are all orientated and have been logged in detail for geology, veining, alteration, mineralisation and orientated structure. Westgold underground drill-holes are logged in detail for geology, veining, alteration, mineralisation and structure. Core has been logged in enough detail to allow for the relevant mineral resource estimation techniques to be employed.
  • Surface core is photographed both wet and dry and underground core is photographed wet. All photos are stored on the Company's servers, with the photographs from each hole contained within separate folders.
  • Development faces are mapped geologically.
  • RC, RAB and Aircore chips are geologically logged.
  • Sludge drilling is logged for lithology, mineralisation and vein percentage.
  • Logging is both qualitative and quantitative in nature.
  • All holes are logged completely, all faces are mapped completely.

 

Sub-sampling techniques and sample preparation

  • If core, whether cut or sawn and whether quarter, half or all core taken.
  • If non-core, whether riffled, tube sampled, rotary split, etc. and whether sampled wet or dry.
  • For all sample types, the nature, quality and appropriateness of the sample preparation technique.
  • Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.
  • 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.
  • Whether sample sizes are appropriate to the grain size of the material being sampled.

 

  • Blast holes -Sampled via splitter tray per individual drill rods.
  • RAB / AC chips - Combined scoops from bucket dumps from cyclone for composite. Split samples taken from individual bucket dumps via scoop.
  • RC - Three tier riffle splitter (approximately 5kg sample). Samples generally dry.
  • Face Chips - Nominally chipped horizontally across the face from left to right, sub-set via geological features as appropriate.
  • Diamond Drilling - Half-core niche samples, sub-set via geological features as appropriate. Grade control holes may be whole-cored to streamline the core handling process if required.
  • Chips / core chips undergo total preparation.
  • Samples undergo fine pulverisation of the entire sample by an LM5 type mill to achieve a 75µ product prior to splitting.
  • QA/QC is currently ensured during the sub-sampling stages process via the use of the systems of an independent NATA / ISO accredited laboratory contractor. A significant portion of the historical informing data has been processed by in-house laboratories.
  • The sample size is considered appropriate for the grain size of the material being sampled.
  • The un-sampled half of diamond core is retained for check sampling if required. For RC chips regular field duplicates are collected and analysed for significant variance to primary results.

 

Quality of assay data and laboratory tests

  • The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is considered partial or total.
  • 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.
  • Nature of quality control procedures adopted (e.g. standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (i.e. lack of bias) and precision have been established.

 

  • Recent sampling was analysed by fire assay as outlined below;
    • A 40g – 50g sample undergoes fire assay lead collection followed by flame atomic adsorption spectrometry.
    • The laboratory includes a minimum of 1 project standard with every 22 samples analysed.
    • Quality control is ensured via the use of standards, blanks and duplicates.
  • No significant QA/QC issues have arisen in recent drilling results.
  • Photon Assay was introduced in 2023 for Beta Hunt grade control samples. PhotonAssay™ technology (Chrysos Corporation Limited) is a rapid, non-destructive analysis of gold and other elements in mineral samples. It is based on the principle of gamma activation, which uses high energy x-rays to excite changes to the nuclear structure of selected elements. The decay is then measured to give a gold analysis. Each sample is run through two cycles with a radiation time of 15s. This methodology is insensitive to material type and thus does not require fluxing chemicals as in the fire assay methodology. Highlights of the PhotonAssay™ process are as follows:
    • The process is non-destructive; the same sample accuracy can be determined by repeat measurements of the same sample. In addition, the instrument runs a precision analysis for each sample relating to the instrument precision
    • The process allows for an increased sample size, about 500 g of crushed product.
  • The crushed material is not pulverised, as in the fire assay process; this ensures that gold is not smeared or lost during pulverisation (especially important if there is an expectation of visible gold that is being analysed)
  • Historical drilling has used a combination of Fire Assay, Aqua Regia and PAL analysis.
  • These assay methodologies are appropriate for the resources in question.

 

Verification of sampling and assaying

  • The verification of significant intersections by either independent or alternative company personnel.
  • The use of twinned holes.
  • Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.
  • Discuss any adjustment to assay data.

 

  • No independent or alternative verifications are available.
  • Virtual twinned holes have been drilled in several instances across all sites with no significant issues highlighted. Drillhole data is also routinely confirmed by development assay data in the operating environment.
  • Primary data is collected utilising LogChief. The information is imported into a SQL database server and verified.
  • All data used in the calculation of resources and reserves are compiled in databases (underground and open pit) which are overseen and validated by senior geologists.
  • No adjustments have been made to any assay data.

 

Location of data points

  • Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other locations used in Mineral Resource estimation.
  • Specification of the grid system used.
  • Quality and adequacy of topographic control.

 

  • All data is spatially oriented by survey controls via direct pickups by the survey department. Drillholes are all surveyed downhole, deeper holes with a Gyro tool if required, the majority with single / multishot cameras.
  • All drilling and resource estimation is preferentially undertaken in local mine grid at the various sites.
  • Topographic control is generated from a combination of remote sensing methods and ground-based surveys. This methodology is adequate for the resources in question.

 

Data spacing and distribution

Für dich aus unserer Redaktion zusammengestellt

Dein Kommentar zum Artikel im Forum

Jetzt anmelden und diskutieren Registrieren Login

Hinweis: ARIVA.DE veröffentlicht in dieser Rubrik Analysen, Kolumnen und Nachrichten aus verschiedenen Quellen. Die ARIVA.DE AG ist nicht verantwortlich für Inhalte, die erkennbar von Dritten in den „News“-Bereich dieser Webseite eingestellt worden sind, und macht sich diese nicht zu Eigen. Diese Inhalte sind insbesondere durch eine entsprechende „von“-Kennzeichnung unterhalb der Artikelüberschrift und/oder durch den Link „Um den vollständigen Artikel zu lesen, klicken Sie bitte hier.“ erkennbar; verantwortlich für diese Inhalte ist allein der genannte Dritte.


Weitere Artikel des Autors

Themen im Trend