AI assistant
RAND MINING LIMITED Interim / Quarterly Report 2020
65721_rns_2020-07-22_911ee509-85d9-4d57-a89e-6433c1507415.pdf
Interim / Quarterly Report
Open in viewerOpens in your device viewer
ASX ANNOUNCEMENT
23 July 2020
EKJV Exploration Report June 2020 Quarter
Rand Mining Ltd (ASX code: RND) has pleasure in providing the Quarterly EKJV Exploration Report.
The EKJV is located 25km west north west of Kalgoorlie and 47km north east of Coolgardie. The EKJV is between Rand (12.25%), Tribune Resources Ltd (36.75%) and Northern Star Resources Ltd (51%).
This report has been released with the approval of the Board of Rand Mining Ltd.
-ENDS-
For further information, please contact: Brett Tucker Joint Company Secretary E: [email protected] Ph: + 61 8 9482 0500
For Media and Broker Enquiries Peter Klinger Cannings Purple E: [email protected] Ph: + 61 411 251 540
ASX:RND
Board of Directors
Mr Otakar Demis Chairman & Joint Company Secretary
Mr Anton Billis Managing Director
Mr Gordon Sklenka Non-Executive Director
Mr Brett Tucker & Mr Roland Berzins Joint Company Secretaries
EAST KUNDANA JOINT VENTURE
June 2020 Quarterly EKJV Exploration Report
For distribution to JV Partners:
- Northern Star Resources Limited
- Tribune Resources Limited
- Rand Mining Limited
CONTENTS
| 1 | EXECUTIVE SUMMARY 2 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | EXPLORATION ACTIVITY 3 | ||||||||||||
| 2.1 | Rubicon-Hornet-Pegasus-Falcon (RT/DT) 3 | ||||||||||||
| 2.2 | Golden Hind (DT) 5 | ||||||||||||
| 3 | EXPLORATION RESULTS 7 | ||||||||||||
| 3.1 | Hornet-Rubicon-Pegasus 7 | ||||||||||||
| 3.2.1 | Falcon 7 | ||||||||||||
| 3.2.2 | Startrek 9 | ||||||||||||
| 3.2.3 | Raleigh 12 | ||||||||||||
| 4 | Future Work 12 | ||||||||||||
| 4.1 | In-mine Exploration 12 | ||||||||||||
| 4.2 | Regional Exploration 12 | ||||||||||||
| 5 | APPENDIX 1 13 |
TABLES AND FIGURES
| Table 1 - EKJV exploration activity for the June 2020 Quarter 3 | |
|---|---|
| Table 2: Drilling physicals for the in-mine exploration at Hornet-Rubicon-Pegasus project during | |
| Q4 FY19/20 4 | |
| Table 3. Drilling summary for the Golden Hind Project, June 2020. 5 | |
| Table 4: Summary of significant assays results for Falcon 8 | |
| Table 5: Summary of significant assays results for Startrek 11 |
| Figure 1: Overview of Hornet-Rubicon-Pegasus and Raleigh projects showing in-mine |
|---|
| exploration drilling programs targeting the Falcon prospect drilled during the June quarter 4 |
| Figure 2: Overview of Hornet-Rubicon-Pegasus projects showing in-mine exploration drilling |
| programs targeting the Startrek prospect drilled during the June quarter. 5 |
| Figure 3. Location map of Golden Hind in relation to Raleigh and Rubicon open pits 6 |
| Figure 4. Golden Hind RC drilling collar positions 6 |
| Figure 5: Plan view of Rubicon-Hornet-Pegasus and Raleigh project showing in-mine exploration |
| programs targeting the Falcon lodes that have returned significant intercepts in the June |
| quarter 7 |
| Figure 6: Plan view of Falcon and core photos of significant results in FALDT20045, FALRT20028, |
| FALRT20036 and FALRT20041 8 |
| Figure 7: Plan view and core photos of significant results in STKRT20035, STKRT20040, STKRT20055 |
| and STKRT20056. 12 |
1 EXECUTIVE SUMMARY
Exploration activity in the June 2020 quarter across the East Kundana Joint Venture focused on the Falcon Corridor and the Startrek prospect. Exploration drill holes are defined by Drill Targeting or Resource Targeting designations (Table 1).
| Project | Prospect | Tenement | RAB/ACMetres | RAB/ACSamples | RCMetres | RCSamples | DDMetres | DDSamples | MESamples |
|---|---|---|---|---|---|---|---|---|---|
| Hornet | Falcon | M16/309 | - | - | - | - | 6,111 | 5,888 | - |
| Rubicon | Falcon | M15/993 | - | - | - | - | 6,627 | 4,262 | - |
| Pegasus | Startrek | M16/309 | - | - | - | - | 10,934 | 15,921 | - |
| Regional | GoldenHind | M16/309 | - | - | 516 | 516 | 516 | 516 | - |
| Total | - | - | 516 | 516 | 23,672 | 26,071 | - |
Table 1: EKJV exploration activity for the June 2020 Quarter
2 EXPLORATION ACTIVITY
In-mine underground exploration at EKJV consisted of programs targeting the Falcon Corridor and Startrek prospect. Regional exploration consisted of an RC drilling program late in the quarter to further assess open pit opportunities in the area.
2.1 Rubicon-Hornet-Pegasus-Falcon
A total of 61 underground diamond drill holes for 23,672 metres were completed during the quarter (Table 2) focused on the Falcon Corridor and Startrek prospect. Underground drilling targeting Falcon was conducted from drill platforms in the Rubicon 5980 drill drive, Pegasus 5920 drill drive, Raleigh 6136 ore drive south and Raleigh 5718 stockpile.
| Hole ID | Depth(m) | East(MGA) | North(MGA) | RL(MGA) | HoleType | Dip | Azimuth(MGA) |
|---|---|---|---|---|---|---|---|
| FALDT20043 | 462 | 333243 | 6597624 | -18 | DD | -10 | 267 |
| FALDT20044 | 411 | 333243 | 6597624 | -19 | DD | -22 | 222 |
| FALDT20045 | 345 | 333244 | 6597621 | -18 | DD | -5 | 229 |
| FALDT20046 | 481 | 333243 | 6597622 | -19 | DD | -27 | 249 |
| FALDT20047 | 500 | 333243 | 6597622 | -19 | DD | -39 | 050 |
| FALDT20048 | 522 | 331844 | 6598482 | -283 | DD | 1 | 079 |
| FALDT20049 | 600 | 331844 | 6598482 | -283 | DD | -7 | 079 |
| FALDT20050 | 505 | 331844 | 6598482 | -283 | DD | -8 | 063 |
| FALDT20051 | 366 | 331844 | 6598482 | -283 | DD | -15 | 282 |
| FALDT20078 | 469 | 333243 | 6597624 | -19 | DD | -25 | 267 |
| FALDT20079 | 500 | 333243 | 6597624 | -18 | DD | -5 | 267 |
| FALDT20080 | 400 | 333243 | 6597622 | -19 | DD | -24 | 249 |
| FALDT20081 | 417 | 333245 | 6597620 | -19 | DD | -15 | 249 |
| FALRT20026 | 393 | 332033 | 6598676 | 142 | DD | -27 | 212 |
| FALRT20027 | 458 | 332033 | 6598676 | 142 | DD | -55 | 058 |
| FALRT20028 | 444 | 332034 | 6598676 | 143 | DD | -6 | 067 |
| FALRT20031 | 375 | 332034 | 6598676 | 142 | DD | -19 | 096 |
| FALRT20032 | 417 | 332034 | 6598676 | 142 | DD | -41 | 079 |
| FALRT20033 | 470 | 332033 | 6598676 | 142 | DD | -39 | 065 |
| FALRT20034 | 451 | 332034 | 6598676 | 142 | DD | -48 | 087 |
| FALRT20035 | 533 | 332034 | 6598676 | 142 | DD | -46 | 088 |
| FALRT20036 | 495 | 332034 | 6598676 | 142 | DD | -22 | 103 |
| FALRT20037 | 597 | 332034 | 6598676 | 142 | DD | -13 | 105 |
| FALRT20038 | 312 | 332760 | 6598365 | -96 | DD | 16 | 110 |
| FALRT20039 | 360 | 332759 | 6598367 | -97 | DD | -5 | 248 |
| FALRT20040 | 326 | 332760 | 6598365 | -97 | DD | -4 | 266 |
| FALRT20041 | 345 | 332760 | 6598366 | -97 | DD | -28 | 243 |
| FALRT20042 | 473 | 332760 | 6598366 | -97 | DD | -39 | 250 |
| FALRT20053 | 309 | 332759 | 6598367 | -96 | DD | 5 | 255 |
| STKRT20019A | 369 | 332937 | 6598323 | 221 | DD | -24 | 267 |
| STKRT20020 | 393 | 332937 | 6598323 | 221 | DD | -35 | 063 |
| STKRT20033 | 222 | 333360 | 6597634 | -162 | DD | -54 | 055 |
| STKRT20034 | 256 | 333357 | 6597637 | -160 | DD | 14 | 102 |
| STKRT20035 | 383 | 333393 | 6597627 | -62 | DD | 11 | 017 |
| STKRT20036 | 362 | 333393 | 6597627 | -62 | DD | 23 | 019 |
| STKRT20037 | 219 | 333392 | 6597628 | -63 | DD | 2 | 024 |
| STKRT20038 | 375 | 333392 | 6597628 | -62 | DD | 21 | 031 |
| Depth | East | North | RL | Hole | Azimuth | ||
|---|---|---|---|---|---|---|---|
| Hole ID | (m) | (MGA) | (MGA) | (MGA) | Type | Dip | (MGA) |
| STKRT20039 | 216 | 333357 | 6597637 | -160 | DD | 18 | 040 |
| STKRT20040 | 219 | 333393 | 6597627 | -63 | DD | 7 | 062 |
| STKRT20041 | 327 | 333393 | 6597626 | -62 | DD | 23 | 059 |
| STKRT20042 | 423 | 333394 | 6597626 | -62 | DD | 20 | 061 |
| STKRT20043 | 404 | 333394 | 6597626 | -62 | DD | 10 | 075 |
| STKRT20044 | 462 | 333394 | 6597625 | -62 | DD | 14 | 075 |
| STKRT20045 | 582 | 333394 | 6597625 | -63 | DD | 0 | 085 |
| STKRT20046 | 192 | 333394 | 6597625 | -63 | DD | -9 | 087 |
| STKRT20047 | 267 | 333394 | 6597625 | -64 | DD | -17 | 076 |
| STKRT20048 | 294 | 333394 | 6597625 | -64 | DD | -35 | 092 |
| STKRT20049 | 228 | 333359 | 6597635 | -161 | DD | 0 | 097 |
| STKRT20050 | 267 | 333357 | 6597638 | -162 | DD | -30 | 084 |
| STKRT20051 | 248 | 333361 | 6597633 | -162 | DD | -33 | 352 |
| STKRT20052 | 246 | 333360 | 6597634 | -162 | DD | -72 | 112 |
| STKRT20053 | 489 | 333394 | 6597625 | -63 | DD | -3 | 067 |
| STKRT20055 | 314 | 333361 | 6597633 | -162 | DD | -35 | 106 |
| STKRT20056 | 180 | 333360 | 6597634 | -162 | DD | -41 | 122 |
| STKRT20058 | 254 | 333486 | 6597502 | 76 | DD | 9 | 086 |
| STKRT20059 | 550 | 333488 | 6597501 | 75 | DD | 9 | 035 |
| STKRT20060 | 540 | 333488 | 6597501 | 75 | DD | 9 | 063 |
| STKRT20061 | 468 | 333490 | 6597499 | 75 | DD | -11 | 074 |
| STKRT20062 | 352 | 333490 | 6597499 | 75 | DD | -31 | 090 |
| STKRT20065 | 453 | 333490 | 6597498 | 76 | DD | -10 | 094 |
| STKRT20066 | 381 | 333489 | 6597498 | 74 | DD | -53 | 097 |
Table 2: Drilling physicals for the in-mine exploration at Hornet-Rubicon-Pegasus project during Q4 FY19/20
Figure 1: Overview of Hornet-Rubicon-Pegasus and Raleigh projects showing in-mine exploration drilling programs targeting the Falcon prospect drilled during the June quarter.
Figure 2: Overview of Hornet-Rubicon-Pegasus projects showing in-mine exploration drilling programs targeting the Startrek prospect drilled during the June quarter.
2.2 Golden Hind
An RC drill program was completed at Golden Hind to upgrade the mineralisation model for the area under evaluation for open pit development. The Golden Hind prospect is the southern extension of the Strzelecki structure mined at Raleigh. Fourteen holes were drilled for 516 metres, with results expected in July.
| Hole ID | StartDate | EndDate | Depth(m) | East | North | RL | HoleType | Dip(degrees) | Azimuth(degrees) |
|---|---|---|---|---|---|---|---|---|---|
| GHRC20001 | 14-Jun-20 | 14-Jun-20 | 72 | 332818 | 6597070 | 345 | RC | -60 | 60 |
| GHRC20002 | 14-Jun-20 | 14-Jun-20 | 48 | 332835 | 6597080 | 345 | RC | -60 | 60 |
| GHRC20003 | 15-Jun-20 | 15-Jun-20 | 42 | 332843 | 6597085 | 345 | RC | -60 | 60 |
| GHRC20004 | 15-Jun-20 | 15-Jun-20 | 42 | 332852 | 6597090 | 345 | RC | -60 | 60 |
| GHRC20005 | 15-Jun-20 | 15-Jun-20 | 30 | 332861 | 6597095 | 345 | RC | -60 | 60 |
| GHRC20006 | 15-Jun-20 | 15-Jun-20 | 18 | 332869 | 6597100 | 345 | RC | -60 | 60 |
| GHRC20007 | 15-Jun-20 | 15-Jun-20 | 30 | 332878 | 6597105 | 345 | RC | -60 | 60 |
| GHRC20008 | 15-Jun-20 | 15-Jun-20 | 60 | 332869 | 6596922 | 345 | RC | -60 | 62 |
| GHRC20009 | 16-Jun-20 | 16-Jun-20 | 54 | 332887 | 6596931 | 345 | RC | -60 | 62 |
| GHRC20010 | 16-Jun-20 | 16-Jun-20 | 36 | 332896 | 6596936 | 345 | RC | -60 | 62 |
| GHRC20011 | 16-Jun-20 | 16-Jun-20 | 30 | 332905 | 6596941 | 345 | RC | -60 | 62 |
| GHRC20012 | 16-Jun-20 | 16-Jun-20 | 24 | 332916 | 6596919 | 345 | RC | -60 | 62 |
| GHRC20013 | 16-Jun-20 | 16-Jun-20 | 18 | 332925 | 6596927 | 345 | RC | -60 | 62 |
| GHRC20014 | 16-Jun-20 | 16-Jun-20 | 12 | 332932 | 6596933 | 345 | RC | -60 | 62 |
Table 3. Drilling summary for the Golden Hind Project.
Figure 3. Location map of Golden Hind in relation to Raleigh and Rubicon open pits.
Figure 4. Golden Hind RC drilling collar positions
3 EXPLORATION RESULTS
3.1 Hornet-Rubicon-Pegasus
3.2.1 Falcon
Fourteen diamond holes targeting Falcon returned intersections of significant gold mineralisation during the quarter (Table 4 and Figure 5). Significant intersections were primarily in holes proximal to the known mineralisation, west of Pegasus. Strong visual results were also returned for FALDT20049. Drilled from Raleigh, this hole tested the Falcon Corridor at depth intersecting Falcon-style quartz mineralisation with coarse visible gold (assays pending).
Figure 5: Plan view of Rubicon-Hornet-Pegasus and Raleigh project showing in-mine exploration programs targeting the Falcon lodes that have returned significant intercepts in the June quarter.
| Hole ID | East(MGA) | North(MGA) | RL(AHD) | Dip(deg) | Azi(MGA) | HoleDepth(m) | From(m) | To(m) | DHWidth(m) | Gradeg/t Au | TrueWidth(m) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| FALDT20043 | 333243 | 6597624 | -18 | -10 | 267 | 462 | 274.65 | 275.25 | 0.6 | 3.8 | 0.4 |
| FALDT20044 | 333243 | 6597624 | -19 | -22 | 222 | 411 | Pending | ||||
| FALDT20045 | 333244 | 6597621 | -18 | -5 | 229 | 345 | 121.52 | 122 | 0.5 | 9.8 | 0.4 |
| 127.21 | 128.5 | 1.3 | 3.7 | 1.2 | |||||||
| 260.0 | 261.0 | 1.0 | 2.5 | 0.9 | |||||||
| FALDT20046 | 333243 | 6597622 | -19 | -27 | 249 | 481 | NSI | ||||
| FALDT20047 | 333243 | 6597622 | -19 | -39 | 50 | 500 | Pending | ||||
| FALDT20048 | 331844 | 6598482 | -283 | 1 | 79 | 522 | 438.4 | 438.75 | 0.4 | 3.5 | 0.3 |
| 481.8 | 482.25 | 0.5 | 6.8 | 0.4 | |||||||
| FALDT20049 | 331844 | 6598482 | -283 | -7 | 79 | 600 | Pending | ||||
| FALDT20050 | 331844 | 6598482 | -283 | -8 | 63 | 505 | Pending | ||||
| FALDT20051 | 331844 | 6598482 | -283 | -15 | 282 | 366 | Pending | ||||
| FALDT20078 | 333243 | 6597624 | -19 | -25 | 267 | 469 | Pending | ||||
| FALDT20079 | 333243 | 6597624 | -18 | -5 | 267 | 500 | Pending | ||||
| FALDT20080 | 333243 | 6597622 | -19 | -24 | 249 | 400 | Pending | ||||
| FALDT20081 | 333245 | 6597620 | -19 | -15 | 249 | 417 | Pending | ||||
| FALRT20020 | 331954 | 6598964 | 142 | 8 | 9 | 378 | 278.73 | 279.33 | 0.6 | 2.8 | 0.4 |
| 283.92 | 286.65 | 2.7 | 8.4 | 1.6 | |||||||
| 290.69 | 291.11 | 0.4 | 2.4 | 0.3 | |||||||
| 293.7 | 294.0 | 0.3 | 4.7 | 0.2 | |||||||
| 295.54 | 296.08 | 0.5 | 3.2 | 0.3 | |||||||
| 300 | 300.32 | 0.3 | 3.2 | 0.2 | |||||||
| FALRT20021 | 331954 | 6598964 | 142 | 2 | 357 | 421 | 334.11 | 334.49 | 0.4 | 11.6 | 0.2 |
| 338.54 | 338.9 | 0.4 | 3.0 | 0.2 | |||||||
| 340.97 | 341.27 | 0.3 | 2.6 | 0.1 | |||||||
| FALRT20022 | 331954 | 6598964 | 141 | -9 | 4 | 390 | 287.4 | 288.1 | 0.7 | 3.2 | 0.4 |
| FALRT20023 | 331953 | 6598964 | 141 | -12 | 353 | 405 | 351.4 | 351.7 | 0.3 | 7.1 | 0.1 |
| FALRT20024 | 331954 | 6598964 | 141 | -27 | 354 | 400 | 282.0 | 283.0 | 1.0 | 2.1 | 0.5 |
| FALRT20025 | 332033 | 6598677 | 143 | -15 | 50 | 337 | NSI |
| Hole ID | East(MGA) | North(MGA) | RL(AHD) | Dip(deg) | Azi(MGA) | HoleDepth(m) | From(m) | To(m) | DHWidth(m) | Gradeg/t Au | TrueWidth(m) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| FALRT20026 | 332033 | 6598676 | 142 | -27 | 212 | 393 | NSI | ||||
| FALRT20027 | 332033 | 6598676 | 142 | -55 | 58 | 458 | NSI | ||||
| FALRT20028 | 332034 | 6598676 | 143 | -6 | 67 | 444 | 382.09 | 382.58 | 0.5 | 16.7 | 0.4 |
| FALRT20030 | 332033 | 6598677 | 143 | -7 | 61 | 327 | 292.68 | 292.98 | 0.3 | 3.6 | 0.3 |
| FALRT20031 | 332034 | 6598676 | 142 | -19 | 96 | 375 | 290.54 | 290.83 | 0.3 | 3.0 | 0.3 |
| 307.28 | 307.58 | 0.3 | 2.0 | 0.3 | |||||||
| FALRT20032 | 332034 | 6598676 | 142 | -41 | 79 | 417 | 298.62 | 298.92 | 0.3 | 2.2 | 0.3 |
| FALRT20033 | 332033 | 6598676 | 142 | -39 | 65 | 470 | NSI | ||||
| FALRT20034 | 332034 | 6598676 | 142 | -48 | 87 | 451 | Pending | ||||
| FALRT20035 | 332034 | 6598676 | 142 | -46 | 88 | 533 | 442.5 | 443.0 | 0.5 | 3.0 | 0.2 |
| FALRT20036 | 332034 | 6598676 | 142 | -22 | 103 | 495 | 379.0 | 379.7 | 0.7 | 4.8 | 0.5 |
| 382.96 | 383.26 | 0.3 | 18.5 | 0.2 | |||||||
| 395.6 | 396.0 | 0.4 | 4.6 | 0.3 | |||||||
| FALRT20037 | 332034 | 6598676 | 142 | -13 | 105 | 597 | 452.77 | 453.25 | 0.5 | 4.2 | 0.3 |
| 454.88 | 455.35 | 0.5 | 2.2 | 0.1 | |||||||
| FALRT20038 | 332760 | 6598365 | -96 | 16 | 110 | 312 | 12.7 | 13.3 | 0.6 | 2.2 | 0.6 |
| 232.0 | 232.3 | 0.3 | 5.4 | 0.3 | |||||||
| 239.68 | 240.3 | 0.6 | 7.0 | 0.6 | |||||||
| 241.2 | 242.0 | 0.8 | 13.6 | 0.8 | |||||||
| 243.0 | 244.0 | 1.0 | 2.2 | 1.0 | |||||||
| 252.0 | 252.68 | 0.7 | 11.8 | 0.7 | |||||||
| FALRT20039 | 332759 | 6598367 | -97 | -5 | 248 | 360 | Pending | ||||
| FALRT20040 | 332760 | 6598365 | -97 | -4 | 266 | 326 | 19.13 | 20.26 | 1.1 | 3.0 | 1.1 |
| 137.3 | 138.86 | 1.6 | 1.5 | 1.5 | |||||||
| 140.45 | 141.05 | 0.6 | 2.0 | 0.6 | |||||||
| 180.94 | 181.29 | 0.4 | 10.1 | 0.3 | |||||||
| 217.24 | 217.8 | 0.6 | 2.7 | 0.5 | |||||||
| FALRT20041 | 332760 | 6598366 | -97 | -28 | 243 | 345 | 99.19 | 108.7 | 9.5 | 2.5 | 7.0 |
| 111.84 | 112.54 | 0.7 | 8.1 | 0.5 | |||||||
| 263.58 | 263.88 | 0.3 | 19.3 | 0.2 | |||||||
| 264.4 | 265 | 0.6 | 2.3 | 0.4 | |||||||
| 310.3 | 310.92 | 0.6 | 5.0 | 0.5 | |||||||
| FALRT20042 | 332760 | 6598366 | -97 | -39 | 250 | 473 | 193.8 | 194.19 | 0.4 | 2.2 | 0.2 |
| 389.09 | 389.28 | 0.2 | 10.2 | 0.1 | |||||||
| 392.7 | 392.92 | 0.2 | 9.3 | 0.1 | |||||||
| 430.0 | 431.0 | 1.0 | 5.5 | 0.6 | |||||||
| FALRT20053 | 332759 | 6598367 | -96 | 5 | 255 | 309 | 214.7 | 215.0 | 0.3 | 80.7 | 0.3 |
| 219.58 | 220.0 | 0.4 | 6.1 | 0.4 | |||||||
| 228.95 | 229.76 | 0.8 | 4.2 | 0.7 | |||||||
| 239.37 | 239.75 | 0.4 | 7.9 | 0.3 | |||||||
| 241.25 | 243.56 | 2.3 | 3.7 | 2.0 | |||||||
| 272.58 | 273.0 | 0.4 | 3.2 | 0.4 |
Table 4: Summary of significant assays results for Falcon
Figure 6: Plan view of Falcon and core photos of significant results in FALDT20045, FALRT20028, FALRT20036 and FALRT20041.
3.2.2 Startrek
Twenty-one underground diamond drill holes targeting the Startrek prospect intersected zones of gold mineralisation during the quarter (Table 5 and Figure 7). Mineralisation was predominately hosted in narrow, irregular quartz veins within the footwall volcanosedimentary package. STKRT20035 returned strong assay results in veins within the sediments in addition to an intersection of 0.3m (tw) at 51.3g/t Au in a laminated quartz vein within dolerite host rock.
| Hole | East | North | RL | Dip | Azi | Hole | From | To | DH | Grade | True |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | (MGA) | (MGA) | (AHD) | (deg) | (MGA) | Depth | (m) | (m) | Width | g/t Au | Width |
| (m) | (m) | (m) | |||||||||
| STKRT20008 | 333095 | 6598136 | 33 | 11 | 44 | 332 | 27.0 | 28.0 | 1.0 | 3.4 | 0.9 |
| 34.93 | 35.65 | 0.7 | 4.2 | 0.6 | |||||||
| 168.78 | 169.3 | 0.5 | 2.8 | 0.4 | |||||||
| 200.7 | 201.3 | 0.6 | 40.7 | 0.5 | |||||||
| STKRT20009 | 333095 | 6598135 | 33 | 22 | 41 | 369 | 0.0 | 0.88 | 0.9 | 3.8 | 0.7 |
| 87.18 | 87.65 | 0.5 | 2.1 | 0.4 | |||||||
| 88.6 | 89.57 | 1.0 | 2.9 | 0.7 | |||||||
| 168.0 | 169.0 | 1.0 | 10.6 | 0.3 | |||||||
| 179.0 | 179.71 | 0.7 | 2.4 | 0.5 | |||||||
| 246.0 | 246.5 | 0.5 | 2.7 | 0.4 | |||||||
| STKRT20010 | 333095 | 6598135 | 32 | -24 | 34 | 261 | 148.05 | 148.45 | 0.4 | 4.5 | 0.4 |
| STKRT20011 | 333095 | 6598135 | 32 | -19 | 57 | 209 | 15.0 | 15.5 | 0.5 | 2.5 | 0.5 |
| 130.82 | 131.12 | 0.3 | 5.7 | 0.3 | |||||||
| 153.41 | 153.83 | 0.4 | 11.8 | 0.4 | |||||||
| 180.67 | 181.03 | 0.4 | 2.3 | 0.3 | |||||||
| STKRT20012 | 333095 | 6598136 | 32 | -41 | 19 | 252 | 48.4 | 48.75 | 0.4 | 2.4 | 0.2 |
| STKRT20013 | 333095 | 6598135 | 32 | -43 | 49 | 293 | NSI | ||||
| STKRT20015 | 332937 | 6598323 | 222 | -11 | 57 | 426 | 75.0 | 76.0 | 1.0 | 2.2 | 1.0 |
| 79.96 | 80.48 | 0.5 | 4.5 | 0.5 | |||||||
| 118.0 | 118.4 | 0.4 | 3.6 | 0.4 | |||||||
| 156.9 | 157.9 | 1.0 | 10.2 | 1.0 | |||||||
| 198.64 | 199.05 | 0.4 | 4.0 | 0.4 | |||||||
| 201.35 | 201.95 | 0.6 | 5.0 | 0.6 | |||||||
| 205.61 | 205.91 | 0.3 | 5.4 | 0.3 | |||||||
| 214.94 | 215.74 | 0.8 | 15.5 | 0.8 | |||||||
| 285.84 | 286.26 | 0.4 | 14.7 | 0.4 | |||||||
| 373.75 | 374.08 | 0.3 | 5.5 | 0.3 | |||||||
| 386.11 | 386.64 | 0.5 | 2.8 | 0.5 | |||||||
| STKRT20017 | 332937 | 6598323 | 222 | -13 | 71 | 406 | 89.45 | 90.4 | 1.0 | 2.4 | 0.9 |
| 169.58 | 169.91 | 0.3 | 2.3 | 0.3 | |||||||
| 172.36 | 172.75 | 0.4 | 16.4 | 0.3 | |||||||
| 274.92 | 275.52 | 0.6 | 13.6 | 0.5 | |||||||
| 307.08 | 307.54 | 0.5 | 5.2 | 0.4 | |||||||
| 312.09 | 312.39 | 0.3 | 2.3 | 0.3 | |||||||
| 343.65 | 344.0 | 0.4 | 2.0 | 0.3 | |||||||
| 351.0 | 351.3 | 0.3 | 14.3 | 0.3 | |||||||
| 356.04 | 356.34 | 0.3 | 2.3 | 0.3 | |||||||
| STKRT20018 | 332937 | 6598323 | 221 | -21 | 49 | 433 | 17.03 | 17.36 | 0.3 | 14.9 | 0.3 |
| 81.08 | 81.49 | 0.4 | 7.8 | 0.4 | |||||||
| 329.24 | 329.55 | 0.3 | 12.0 | 0.3 | |||||||
| 389.78 | 390.25 | 0.5 | 4.8 | 0.4 | |||||||
| 414.25 | 414.87 | 0.6 | 3.5 | 0.6 | |||||||
| STKRT20019A | 332937 | 6598323 | 221 | -24 | 267 | 369 | Pending | ||||
| STKRT20020 | 332937 | 6598323 | 221 | -35 | 63 | 393 | 86.46 | 87.16 | 0.7 | 9.4 | 0.6 |
| 133.0 | 133.3 | 0.3 | 2.8 | 0.3 | |||||||
| 258.63 | 258.93 | 0.3 | 3.5 | 0.3 | |||||||
| 272.12 | 272.42 | 0.3 | 3.8 | 0.3 | |||||||
| 314.62 | 315.73 | 1.1 | 1.4 | 1.0 | |||||||
| 381.65 | 382.46 | 0.8 | 2.7 | 0.7 | |||||||
| 155.0 | 155.5 | 0.5 | 7.4 | 0.3 | |||||||
| STKRT20031 | 333358 | 6597636 | -162 | -44 | 58 | 159 | 11.79 | 12.23 | 0.4 | 2.4 | 0.4 |
| 18.96 | 19.28 | 0.3 | 11.3 | 0.3 | |||||||
| 84.85 | 85.15 | 0.3 | 7.9 | 0.3 | |||||||
| 103.8 | 104.1 | 0.3 | 2.1 | 0.3 | |||||||
| 105.32 | 105.62 | 0.3 | 36.1 | 0.3 | |||||||
| 106.3 | 106.78 | 0.5 | 16.7 | 0.4 | |||||||
| 110.3 | 110.88 | 0.6 | 10.1 | 0.5 | |||||||
| 128.76 | 129.06 | 0.3 | 12.1 | 0.3 | |||||||
| 135.71 | 136.35 | 0.6 | 7.3 | 0.5 |
| HoleID | East(MGA) | North(MGA) | RL(AHD) | Dip(deg) | Azi(MGA) | HoleDepth | From(m) | To(m) | DHWidth | Gradeg/t Au | TrueWidth |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (m) | (m) | (m) | |||||||||
| STKRT20032 | 333360 | 6597634 | -162 | -25 | 93 | 234 | 137.433.65 | 138.314.0 | 0.90.4 | 35.72.3 | 0.70.3 |
| 5.3 | 7.0 | 1.7 | 7.1 | 1.4 | |||||||
| 13.44 | 13.74 | 0.3 | 7.9 | 0.2 | |||||||
| 24.81 | 25.28 | 0.5 | 2.9 | 0.4 | |||||||
| 76.0 | 77.55 | 1.6 | 5.0 | 1.3 | |||||||
| STKRT20033 | 333360 | 6597634 | -162 | -54 | 55 | 222 | 87.8 | 88.1 | 0.3 | 6.3 | 0.2 |
| 102.3 | 102.78 | 0.5 | 5.4 | 0.3 | |||||||
| 120.7 | 121.5 | 0.8 | 3.5 | 0.5 | |||||||
| 168.39 | 168.72 | 0.3 | 5.0 | 0.2 | |||||||
| 169.52 | 170.4 | 0.9 | 5.1 | 0.5 | |||||||
| STKRT20034 | 333357 | 6597637 | -160 | 14 | 102 | 256 | 70.9 | 71.25 | 0.4 | 2.7 | 0.2 |
| 102.7 | 103.0 | 0.3 | 3.0 | 0.2 | |||||||
| 105.65 | 106.0 | 0.4 | 5.0 | 0.2 | |||||||
| 124.8 | 125.4 | 0.6 | 2.5 | 0.2 | |||||||
| 173.3 | 174.1 | 0.8 | 2.6 | 0.5 | |||||||
| 174.8 | 175.15 | 0.4 | 2.8 | 0.2 | |||||||
| 178.85 | 179.15 | 0.3 | 2.7 | 0.2 | |||||||
| STKRT20035 | 333393 | 6597627 | -62 | 11 | 17 | 383 | 108.05 | 108.95 | 0.9 | 6.4 | 0.6 |
| 208.87 | 209.52 | 0.7 | 2.6 | 0.5 | |||||||
| 226.94 | 227.54 | 0.6 | 7.2 | 0.4 | |||||||
| STKRT20036 | 333393 | 6597627 | -62 | 23 | 19 | 362 | 366.5915.75 | 366.916.14 | 0.30.4 | 51.34.6 | 0.30.3 |
| 73.73 | 74.1 | 0.4 | 3.6 | 0.2 | |||||||
| 88.93 | 89.93 | 1.0 | 2.4 | 0.6 | |||||||
| 101.76 | 102.1 | 0.3 | 2.0 | 0.2 | |||||||
| 158.24 | 161.2 | 3.0 | 4.6 | 1.9 | |||||||
| 163.6 | 163.96 | 0.4 | 6.5 | 0.2 | |||||||
| 165.29 | 165.6 | 0.3 | 6.5 | 0.2 | |||||||
| 166.9 | 170.4 | 3.5 | 4.0 | 2.2 | |||||||
| 178.65 | 180.48 | 1.8 | 4.4 | 1.2 | |||||||
| 190.52 | 190.82 | 0.3 | 3.5 | 0.2 | |||||||
| 246.9 | 247.56 | 0.7 | 7.3 | 0.4 | |||||||
| 256.84 | 257.15 | 0.3 | 5.5 | 0.2 | |||||||
| STKRT20037 | 333392 | 6597628 | -63 | 2 | 24 | 219 | 18.28 | 18.58 | 0.3 | 3.0 | 0.3 |
| 49.16 | 49.76 | 0.6 | 3.1 | 0.5 | |||||||
| 150.58 | 151.73 | 1.2 | 4.3 | 1.0 | |||||||
| STKRT20038 | 333392 | 6597628 | -62 | 21 | 31 | 375 | 56.82 | 57.32 | 0.5 | 2.3 | 0.4 |
| 117.85 | 118.53 | 0.7 | 2.3 | 0.5 | |||||||
| 169.63 | 169.93 | 0.3 | 3.6 | 0.2 | |||||||
| 179.74 | 180.04 | 0.3 | 3.1 | 0.2 | |||||||
| 288.9 | 289.37 | 0.5 | 7.0 | 0.4 | |||||||
| 292.65 | 293.14 | 0.5 | 4.8 | 0.3 | |||||||
| 320.5 | 320.8 | 0.3 | 2.2 | 0.2 | |||||||
| STKRT20039 | 333357 | 6597637 | -160 | 18 | 40 | 216 | 106.85 | 108.0 | 1.2 | 2.5 | 1.0 |
| 116.08132.45 | 116.48133.27 | 0.40.8 | 3.03.5 | 0.20.7 | |||||||
| 187.06 | 188.3 | 1.2 | 2.7 | 1.1 | |||||||
| 189.0 | 189.44 | 0.4 | 4.7 | 0.4 | |||||||
| STKRT20040 | 333393 | 6597627 | -63 | 7 | 62 | 219 | 20.0 | 20.3 | 0.3 | 2.2 | 0.3 |
| 46.0 | 46.3 | 0.3 | 5.6 | 0.3 | |||||||
| 89.0 | 89.4 | 0.4 | 13.2 | 0.4 | |||||||
| STKRT20041 | 333393 | 6597626 | -62 | 23 | 59 | 327 | 59.0 | 59.36 | 0.4 | 2.6 | 0.3 |
| 108.11 | 108.82 | 0.7 | 2.4 | 0.6 | |||||||
| 116.1 | 116.57 | 0.5 | 5.3 | 0.4 | |||||||
| 210.12 | 211.14 | 1.0 | 2.6 | 0.8 | |||||||
| 221.12 | 221.55 | 0.4 | 2.3 | 0.4 | |||||||
| STKRT20042 | 333394 | 6597626 | -62 | 20 | 61 | 423 | Pending | ||||
| STKRT20043 | 333394 | 6597626 | -62 | 10 | 75 | 404 | Pending | ||||
| STKRT20044 | 333394 | 6597625 | -62 | 14 | 75 | 462 | 0.0 | 0.3 | 0.3 | 2.0 | 0.2 |
| 7.34 | 9 | 1.7 | 3.2 | 1.3 | |||||||
| 38.47 | 38.77 | 0.3 | 8.4 | 0.2 | |||||||
| 58.0 | 59.0 | 1.0 | 2.9 | 0.8 | |||||||
| 71.8 | 72.1 | 0.3 | 20.3 | 0.2 | |||||||
| STKRT20045 | 333394 | 6597625 | -63 | 0 | 85 | 582 | 0.4 | 1.3 | 0.9 | 6.1 | 0.8 |
| 3.85 | 4.23 | 0.4 | 6.1 | 0.3 | |||||||
| 20.65 | 21.0 | 0.4 | 2.9 | 0.3 |
| EKJVMANAGEMENT PTY LTD |
|---|
| HoleID | East(MGA) | North(MGA) | RL(AHD) | Dip(deg) | Azi(MGA) | HoleDepth | From(m) | To(m) | DHWidth | Gradeg/t Au | TrueWidth |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (m) | (m) | (m) | |||||||||
| 21.7413.92 | 22.0414.34 | 0.30.4 | 2.82.2 | 0.30.4 | |||||||
| 540 | 540.82 | 0.8 | 3.1 | 0.7 | |||||||
| 551 | 552.76 | 1.8 | 6.0 | 1.5 | |||||||
| STKRT20046 | 333394 | 6597625 | -63 | -9 | 87 | 192 | 2.0 | 3.0 | 1.0 | 18.3 | 1.0 |
| 41.46 | 42.33 | 0.9 | 2.6 | 0.8 | |||||||
| STKRT20047 | 333394 | 6597625 | -64 | -17 | 76 | 267 | Pending | ||||
| STKRT20048 | 333394 | 6597625 | -64 | -35 | 92 | 294 | 117.62 | 118.01 | 0.4 | 5.5 | 0.3 |
| 124.0 | 124.3 | 0.3 | 3.2 | 0.2 | |||||||
| 231.51 | 231.81 | 0.3 | 3.1 | 0.2 | |||||||
| 232.27 | 233.0 | 0.7 | 3.4 | 0.5 | |||||||
| STKRT20049 | 333359 | 6597635 | -161 | 0 | 97 | 228 | 0.0 | 1.0 | 1.0 | 3.9 | 0.9 |
| 1.95 | 2.63 | 0.7 | 2.5 | 0.6 | |||||||
| 5.22 | 5.7 | 0.5 | 2.2 | 0.4 | |||||||
| 6.7 | 7.0 | 0.3 | 6.0 | 0.3 | |||||||
| 12.0 | 12.67 | 0.7 | 3.0 | 0.6 | |||||||
| 106.1 | 106.5 | 0.4 | 2.1 | 0.4 | |||||||
| STKRT20050 | 333357 | 6597638 | -162 | -30 | 84 | 267 | NSI | ||||
| STKRT20051 | 333361 | 6597633 | -162 | -33 | 352 | 248 | 102.0 | 102.3 | 0.3 | 6.0 | 0.2 |
| 164.95 | 165.32 | 0.4 | 3.3 | 0.2 | |||||||
| 175.3 | 175.66 | 0.4 | 12.2 | 0.2 | |||||||
| 179.51 | 180.85 | 1.3 | 3.8 | 0.8 | |||||||
| 180.85 | 183.1 | 2.3 | 3.1 | 1.4 | |||||||
| 183.6 | 183.9 | 0.3 | 6.4 | 0.2 | |||||||
| 217.8 | 218.1 | 0.3 | 5.5 | 0.2 | |||||||
| STKRT20052 | 333360 | 6597634 | -162 | -72 | 112 | 246 | 101.0 | 102.2 | 1.2 | 3.0 | 0.6 |
| 104.5 | 104.95 | 0.5 | 54.2 | 0.2 | |||||||
| 105.35 | 105.65 | 0.3 | 4.1 | 0.2 | |||||||
| 106.25 | 107.18 | 0.9 | 2.4 | 0.5 | |||||||
| 107.18 | 107.68 | 0.5 | 2.2 | 0.3 | |||||||
| 108.3 | 108.7 | 0.4 | 2.1 | 0.2 | |||||||
| 140.0 | 141.15 | 1.2 | 3.9 | 0.6 | |||||||
| 141.5 | 141.96 | 0.5 | 6.9 | 0.2 | |||||||
| 148.0 | 148.7 | 0.7 | 4.1 | 0.4 | |||||||
| STKRT20053 | 333394 | 6597625 | -63 | -3 | 67 | 489 | Pending | ||||
| STKRT20055 | 333361 | 6597633 | -162 | -35 | 106 | 314 | 12.64 | 13.19 | 0.6 | 2.4 | 0.3 |
| 31.85 | 32.3 | 0.5 | 3.6 | 0.2 | |||||||
| 105.72 | 106.14 | 0.4 | 3.2 | 0.2 | |||||||
| 108.72 | 109 | 0.3 | 2.4 | 0.1 | |||||||
| 158.86 | 159.16 | 0.3 | 10.8 | 0.2 | |||||||
| STKRT20056 | 333360 | 6597634 | -162 | -41 | 122 | 180 | 16.87 | 17.32 | 0.5 | 6.8 | 0.4 |
| 134.27 | 134.57 | 0.3 | 10.2 | 0.2 | |||||||
| 139.38 | 139.68 | 0.3 | 3.9 | 0.2 | |||||||
| 145.58 | 146.25 | 0.7 | 9.6 | 0.5 | |||||||
| STKRT20058 | 333486 | 6597502 | 76 | 9 | 86 | 254 | Pending | ||||
| STKRT20059 | 333488 | 6597501 | 75 | 9 | 35 | 550 | Pending | ||||
| STKRT20060 | 333488 | 6597501 | 75 | 9 | 63 | 540 | Pending | ||||
| STKRT20061 | 333490 | 6597499 | 75 | -11 | 74 | 468 | 218.6 | 219.32 | 0.7 | 1.9 | 0.7 |
| 267.39 | 268.32 | 0.9 | 6.1 | 0.9 | |||||||
| STKRT20062 | 333490 | 6597499 | 75 | -31 | 90 | 352 | NSI | ||||
| STKRT20065 | 333490 | 6597498 | 76 | -10 | 94 | 453 | Pending | ||||
| STKRT20066 | 333489 | 6597498 | 74 | -53 | 97 | 381 | NSI |
Table 5: Summary of significant assays results for Startrek
Figure 7: Plan view and core photos of significant results in STKRT20035, STKRT20040, STKRT20055 and STKRT20056.
3.2.3 Raleigh
Exploration drilling at Raleigh during the quarter targeted the Falcon corridor and is included under the Falcon section.
4 Future Work
4.1 In-mine Exploration
Exploration drilling will continue to test the Falcon corridor to the west of the Rubicon and Hornet mines (15250N – 16700N), testing at depth from the H5776 drill platform and higher up from the Rubicon Link.
Exploration drilling to test Falcon at depth east of Raleigh will continue. Drill spacing will be reduced from 160m to 80m after promising visual results in initial exploration holes (assays pending) and additional 160m spaced holes will be drilled to test the extents of Falcon proximal to these intercepts.
At Startrek, drilling will continue to reduce the drill hole spacing between positive intersections east of Rubicon and commence wide space drill targeting east of Hornet that is currently untested.
4.2 Regional Exploration
Results are expected for the Golden Hind Drilling which will require follow-up evaluation and interpretation.
Competency statement
The information in this report relating to Exploration Results is based on information compiled by Dr Rick Gordon who is a Member of the Australian Institute of Geoscientists and has sufficient exploration experience which is relevant to the style of mineralisation under consideration 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'. Dr Gordon is a full-time employee of Northern Star Resource Limited and consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
5 APPENDIX 1
JORC Code, 2012 Edition – Table 1
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Sampling techniques | Nature and quality of sampling (e.g. cut channels, random chips, orspecific specialised industry standard measurement tools appropriate tothe minerals under investigation, such as down hole gamma sondes, orhandheld XRF instruments, etc.). These examples should not be taken aslimiting the broad meaning of sampling. Include reference to measures taken to ensure sample representivityand the appropriate calibration of any measurement tools or systemsused. Aspects of the determination of mineralisation that are Material to thePublic Report. In cases where 'industry standard' work has been done this would berelatively simple (e.g. 'reverse circulation drilling was used to obtain 1 msamples from which 3 kg was pulverised to produce a 30g charge for fireassay'). In other cases, more explanation may be required, such aswhere there is coarse gold that has inherent sampling problems. Unusualcommodities or mineralisation types (e.g. submarine nodules) maywarrant disclosure of detailed information. | Sampling was completed using combination of Reverse Circulation (RC) and diamond drill core(DD). RC samples were split using a rig-mounted cone splitter on 1m intervals to obtain a sample for assay.These 1m samples were submitted for assay within 24 hours Diamond core was transferred to core trays for logging and sampling. Half core or full core sampleswere nominated by the geologist from HQ or NQ diamond core, with a minimum sample width of20cm and a maximum width of 120cm. Samples were transported to various analysis laboratories in Kalgoorlie for preparation by drying,crushing to <3mm, and pulverizing the entire sample to <75μm. 300g Pulp splits were analysed in laboratories in both Kalgoorlie and Perth for 40-50g Fire assaycharge and AAS analysis for gold. |
| Drilling techniques | Drill type (e.g. core, reverse circulation, open-hole hammer, rotary airblast, auger, Bangka, sonic, etc.) and details (e.g. core diameter, tripleor standard tube, depth of diamond tails, face-sampling bit or othertype, whether core is oriented and if so, by what method, etc.). | For underground drilling, NQ2 (50.6mm) diameter core was used. Core was orientated using an electronic 'back-end tool' core orientation system. RC Drilling was completed using a 5.75" drill bit, downsized to 5.25" at depth. |
| Drill sample recovery | Method of recording and assessing core and chip sample recoveriesand results assessed. Measures taken to maximise sample recovery and ensure representativenature of the samples. Whether a relationship exists between sample recovery and grade andwhether sample bias may have occurred due to preferential loss/gainof fine/coarse material. | Moisture content and sample recovery are recorded for each RC sample. For diamond drilling the contractors adjust their rate of drilling and method if recovery issues arise.All recovery is recorded by the drillers on core blocks. This is checked and compared to themeasurements of the core by the geological team. Any issues are communicated back to thedrilling contractor. RC drilling contractors adjust their drilling approach to specific conditions to maximize samplerecovery. Moisture content and sample recovery are recorded for each RC sample. No recoveryissues were identified during 2020 RC drilling. Recovery was poor at the very beginning of each hole,as is normal for this type of drilling in overburden Recovery was excellent for diamond core and no relationship between grade and recovery wasobserved. |
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Logging | Whether core and chip samples have been geologically andgeotechnically logged to a level of detail to support appropriate MineralResource estimation, mining studies and metallurgical studies. | All diamond core is logged for regolith, lithology, veining, alteration, mineralisation and structure.Structural measurements of specific features are taken through oriented zones. All logging isquantitative where possible and qualitative elsewhere. A photograph is taken of every core tray. |
| Whether logging is qualitative or quantitative in nature. Core (orcostean, channel, etc.) photography. | RC sample chips are logged in 1m intervals. For the entire length of each hole. Regolith, Primarylithology, alteration, veining and mineralisation are all recorded. | |
| The total length and percentage of the relevant intersections logged. | ||
| Sub-sampling techniques and | If core, whether cut or sawn and whether quarter, half or all core taken. | All diamond core that was half-core sampled was cut longitudinally with an automated core saw. |
| sample preparation | If non-core, whether riffled, tube sampled, rotary split, etc. and whethersampled wet or dry. | All RC samples are split using a rig-mounted cone splitter to collect a 1m sample 3-4kg in size.Moisture content of the sample is recorded and noted if wet samples are obtained |
| For all sample types, the nature, quality and appropriateness of thesample preparation technique. | Sample preparation was conducted at various laboratories in Kalgoorlie, commencing with sorting,checking and drying at less than 110°C to prevent sulphide breakdown. Samples are jaw crushed | |
| Quality control procedures adopted for all sub-sampling stages tomaximise representivity of samples. | to a nominal -6mm particle size. The entire crushed sample is then pulverized to 90% passing 75μm,using a bowl or ring-mill pulveriser. 300g Pulp subsamples are then taken with an aluminium scoopand stored in labelled pulp packets. | |
| Measures taken to ensure that the sampling is representative of the insitu material collected, including for instance results for fieldduplicate/second-half sampling. | Grind checks are performed at both the crushing stage (3mm) and pulverising stage (75μm),requiring 90% of material to pass through the relevant size to ensure consistent sample preparation. | |
| Whether sample sizes are appropriate to the grain size of the materialbeing sampled. | ||
| Quality of assay data andlaboratory tests | The nature, quality and appropriateness of the assaying and laboratoryprocedures used and whether the technique is considered partial ortotal. | A 40-50g fire assay charge is used with a lead flux, dissolved in the furnace. The prill is totally digestedin HCl and HNO3 acids before Atomic Absorption Spectroscopy (AAS) determination for goldanalysis. This method ensures total gold is reported appropriately. |
| For geophysical tools, spectrometers, handheld XRF instruments, etc., the | No geophysical tools were used to determine any element concentrations | |
| parameters used in determining the analysis including instrument makeand model, reading times, calibrations factors applied and theirderivation, etc. | Certified Reference Materials (CRMs) are inserted into the sample sequence randomly at a rate of1 per 20 composite samples to ensure correct calibration. Any values outside of 3 standarddeviations are scrutinised and re-assayed with a new CRM if the failure is deemed genuine. | |
| Nature of quality control procedures adopted (e.g. standards, blanks,duplicates, external laboratory checks) and whether acceptable levelsof accuracy (i.e. lack of bias) and precision have been established. | Blanks are inserted into the sample sequence at a rate of 1 per 20 composite samples. Failures above0.2g/t are scrutinised and re-assayed if required. New pulps are prepared if failures remain. | |
| All sample QAQC results are assessed by geologists to ensure the appropriate level of accuracy andprecision when the results have been returned from the laboratory. | ||
| Field duplicates are taken for all RC samples (1 in 50 samples) | ||
| Verification of sampling andassaying | The verification of significant intersections by either independent oralternative company personnel. | All significant intersections are verified by the project geologist and senior geologist during the drillhole validation process. |
| The use of twinned holes. | No holes were twinned as part of the programmes in this report. | |
| Documentation of primary data, data entry procedures, dataverification, data storage (physical and electronic) protocols. | Geological logging was captured using Acquire database software. Both a hardcopy andelectronic copy of these are stored. Assay files are received in csv format and loaded directly intothe database by the supervising geologist who then checks that the results have inserted correctly. |
Discuss any adjustment to assay data.
Hardcopy and electronic copies of these are also kept. No adjustments are made to this assay data.
| EKJV MANAGEMENT PTY LTD |
|---|
| -------------------------------- |
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Location of data points | Accuracy and quality of surveys used to locate drill holes (collar anddown-hole surveys), trenches, mine workings and other locations used inMineral Resource estimation. Specification of the grid system used. Quality and adequacy of topographic control. | All collars for underground drilling are located in the local mine grid by a mine surveyor using a lasertheodolite. A planned RC hole is pegged using a hand-held GPS by the geologist. The final collar is picked upafter hole completion by Differential GPS in the MGA 94 Zone 51 grid. During drilling, single-shotsurveys are taken every 30m as a minimum standard to ensure the hole remains close to design witha further survey taken at the end of hole. A continuous north-seeking gyro tool is used. A moredetailed survey (i.e. more survey stations) is generally conducted upon completion of the hole.Results are uploaded to an online server, where they can be downloaded and imported intoNorthern Star's Acquire database. |
| Data spacing and distribution | Data spacing for reporting of Exploration Results. Whether the data spacing and distribution is sufficient to establish thedegree of geological and grade continuity appropriate for the MineralResource and Ore Reserve estimation procedure(s) and classificationsapplied. Whether sample compositing has been applied. | Surface drill hole spacing is variable and dependent on the interpreted geometries of geology andmineralisation at individual prospects. In-mine diamond drill holes spacings are also variable from 80m apart through to isolated single drillholes. Closer spaced drilling is considered operational drilling, beyond the scope of this report. |
| Orientation of data in relationto geological structure | Whether the orientation of sampling achieves unbiased sampling ofpossible structures and the extent to which this is known, considering thedeposit type. If the relationship between the drilling orientation and the orientation ofkey mineralised structures is considered to have introduced a samplingbias, this should be assessed and reported if material. | All drilling both underground and surface is oriented as close as practical to perpendicular to thetarget structures. The orientation of all in-mine target structures is well known and drill holes are onlydesigned where meaningful intercept angles can be achieved. No sampling bias is considered to have been introduced by the drilling orientation. |
| Sample security | The measures taken to ensure sample security. | Prior to laboratory submission samples are stored by Northern Star in a secure yard. Once submittedto the laboratories they are stored in a secure fenced compound and tracked through their chainof custody via audit trails. |
| Audits or reviews | The results of any audits or reviews of sampling techniques and data. | No audits or reviews have recently been conducted on sampling techniques; however, lab auditsare conducted on a regular basis. |
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 landtenure status | Type, reference name/number, location and ownership includingagreements or material issues with third parties such as joint ventures,partnerships, overriding royalties, native title interests, historical sites,wilderness or national park and environmental settings. | All diamond holes mentioned in this report are located within the M16/309 and M15/993 Miningleases held by The East Kundana Joint Venture (EKJV). The EKJV is majority owned and managed byNorthern Star Resources Ltd (51%). The minority holding in the EKJV is held by Tribune Resources Ltd(36.75%) and Rand Mining Ltd (12.25%). |
| The security of the tenure held at the time of reporting along with anyknown impediments to obtaining a licence to operate in the area. | M16/309 is subject to two royalty agreements; however, neither of these is applicable to theProspects described in this report. The agreements concerned are the Kundana‐ Hornet CentralRoyalty and the Kundana Pope John Agreement No. 2602‐13. No known impediments exist and thetenement is in good standing | |
| Exploration done by otherparties | Acknowledgment and appraisal of exploration by other parties. | Underground drilling on the Raleigh and Hornet-Rubicon-Pegasus mines extends the mineralisedtrends from older drilling including that of previous operators of those mines including Barrick Gold,Placer Dome Asia-Pacific, Aurion Gold, Goldfields Limited and other predecessors. |
| Geology | Deposit type, geological setting and style of mineralisation. | The Kundana camp is situated within the Norseman-Wiluna Greenstone Belt, in an area dominatedby the Zuleika Shear Zone, which separates the Coolgardie domain from the Ora Banda domain.The Zuleika Shear Zone in the Kundana area comprises multiple anastomosing shears the mostimportant of which are the K2, the K2A and Strzelecki Shears. |
| Raleigh and Golden Hind mineralisation are hosted on the Strzelecki Structure. Strzeleckimineralisation consists of very narrow, very high-grade mineralisation on a laminated vein hosted inthe camp-scale Strzelecki Shear which abuts a differentiated mafic intrusive, the Powder SillGabbro against intermediate volcanoclastic rocks (Black Flag Group). A thin 'skin' ofvolcanogenic lithic siltstone-sandstone lies between the gabbro and the Strzelecki shear. Beingbound by an intrusive contact on one side and a sheared contact on the other, the thickness ofthe sedimentary package is highly variable from absent to about forty metres true width. | ||
| The Hornet-Rubicon-Pegasus mineralisation consists primarily of high-grade laminated vein hostedgold on the K2 plane of the Zuleika shear with additional mineralisation on associated lower-orderstructures. The Falcon target is a related mineralised zone in the hangingwall to Pegasus andbetween the two main Zuleika structures, the K2 and Strzelecki structures. |
| Criteria | JORC Code Explanation | Commentary | ||
|---|---|---|---|---|
| Drill hole Information | A summary of all information material to the understanding of the | Refer to the various tables in the body of this report. | ||
| exploration results including a tabulation of the following information forall material drill holes: | Exploration results that are not material to this report are excluded for some drill programmes, | |||
| easting and northing of the drill hole collar | however, the drill physicals are all detailed for all drilling regardless of the outcome. | |||
| elevation or RL (Reduced Level – elevation above sea level inmetres) of the drill hole collar | ||||
| dip and azimuth of the hole | ||||
| down hole length and interception depth | ||||
| hole length. | ||||
| If the exclusion of this information is justified on the basis that theinformation is not Material and this exclusion does not detract from theunderstanding of the report, the Competent Person should clearlyexplain why this is the case. | ||||
| Data aggregation methods | In reporting Exploration Results, weighting averaging techniques,maximum and/or minimum grade truncations (e.g. cutting of highgrades) and cut-off grades are usually Material and should be stated. | All drill results are reported as aggregates across the target zone. | ||
| Where aggregate intercepts incorporate short lengths of high-graderesults and longer lengths of low-grade results, the procedure used forsuch aggregation should be stated and some typical examples of suchaggregations should be shown in detail. | ||||
| The assumptions used for any reporting of metal equivalent valuesshould be clearly stated. | ||||
| Relationship betweenmineralisation widths and | These relationships are particularly important in the reporting ofExploration Results. | The orientation of target structures is well known for all in-mine exploration targets and true widthscan be accurately calculated and are reported accordingly. | ||
| intercept lengths | If the geometry of the mineralisation with respect to the drill hole angleis known, its nature should be reported. | Both the downhole width and true width have been clearly specified when used. | ||
| If it is not known and only the down hole lengths are reported, thereshould be a clear statement to this effect (e.g. 'down hole length, truewidth not known'). | ||||
| Diagrams | Appropriate maps and sections (with scales) and tabulations ofintercepts should be included for any significant discovery beingreported. These should include, but not be limited to a plan view of drillhole collar locations and appropriate sectional views. | Refer to the figures the body of this report for the spatial context of all holes planned and drilled todate. | ||
| Balanced reporting | Where comprehensive reporting of all Exploration Results is notpracticable, representative reporting of both low and high gradesand/or widths should be practised to avoid misleading reporting ofExploration Results. | Exploration results that are not material to this report are excluded for some drill programmes,however, the drill physicals are all detailed for all drilling regardless of the outcome. |
| Criteria | JORC Code Explanation | Commentary |
|---|---|---|
| Other substantive explorationdata | Other exploration data, if meaningful and material, should be reportedincluding (but not limited to): geological observations; geophysicalsurvey results; geochemical survey results; bulk samples – size andmethod of treatment; metallurgical test results; bulk density,groundwater, geotechnical and rock characteristics; potentialdeleterious or contaminating substances. | No other material exploration data has been collected for this drill program. |
| Further work | The nature and scale of planned further work (e.g. tests for lateralextensions or depth extensions or large-scale step-out drilling). Diagrams clearly highlighting the areas of possible extensions, includingthe main geological interpretations and future drilling areas, providedthis information is not commercially sensitive. | Further planned work is referenced in the report body |