+100m Wide Gold Intercepts at Northern Zone
12 December 2023
Oracle Power PLC
("Oracle", the "Company")
+100m Wide Gold Intercepts at Northern Zone Project
Oracle Power PLC (AIM:ORCP), is pleased to report that its potential farm-in partner, Riversgold Ltd (ASX:RGL) ("RGL"), has received the assay results from a diamond drilling programme at the Northern Zone Intrusive Hosted Gold Project, which is located 26km east of Kalgoorlie in Western Australia. Refer to Figure 1 for location. The Riversgold news release can be viewed on its website at www.riversgold.com.au.
Highlights:
o Diamond drilling of entire gold-mineralised central cross-section to 450m vertical depth has validated previous Exploration Model
o Previously announced Exploration Target of 200Mt - 250Mt at a grade of 0.4 g/t Au - 0.6 g/t Au for an exploration target of 2.5Moz - 4.8Moz of gold
o High gold recovery of 92.9% (average) after 24-hour bottle roll cyanide extraction1
o Drill programme has:
o Confirmed the gold mineralisation style
o Confirmed gold mineralisation widths and gold grades; and
o Structural orientation of the gold mineralisation
o Significant results from 2023 diamond drilling confirmation programme include:
§ 110m at 0.60 g/t Au from 208m (RSDD02)
• including 2m @ 2.64g/t Au from 208m,
§ 5m @ 3.03g/t Au from 221m
§ 1m @ 4.77g/t Au from 248m
§ 1m @ 5.26g/t Au from 262m
§ 13m @ 1.29g/t Au from 274m
§ 16.4m @ 0.45g/t Au from 83.6m (RSDD003)
§ 13m @ 0.48g/t Au from 135m (RSDD003)
§ 11m @ 0.49g/t Au from 197m (RSDD003)
§ 26m @ 0.44g/t Au from 231m (RSDD003
§ 47m at 0.48g/t Au from 216m (RSDD01)
• including 1m at 4.74g/t Au from 244m
§ 1m at 4.04g/t Au from 262m
§ 8m at 0.55g/t Au from 127m (RSDD02)
§ 84m @ 0.42g/t Au from 315m (RSDD003)
• including 3.32m @ 2.73g/t Au from 332m,
§ 4m @ 0.52g/t Au from 34m (RSDD04)
§ 8m @ 0.43g/t Au from 77m (RSDD04)
§ 4m @ 0.47g/t Au from 92m (RSDD04)
o Significant results from 2021 and prior RC drilling include:
§ 154m at 0.58g/t Au from 98m (21OPRC004)
• including 4m at 5.39g/t Au from 182m
§ 142m at 0.42g/t Au from 62m (BNRC081)
§ 330m at 0.49 g/t Au from 30m (BNRC066)
• including 54.79m at 1.15g/t Au from 213m
§ 117.7m at 0.35g/t Au from 120.3m (BNRC034)
§ 66m at 0.89g/t Au from 30m (BNRC069)
§ 38m at 0.47g/t Au from 73m (BNRC084)
§ 29m at 1.84g/t Au from 33m (BNRC01)
Naheed Memon, CEO of Oracle, commented:
"With the Australian dollar gold price now pushing through A$3,100 an ounce, the commerciality of these types of large-scale lower grade gold deposits becomes significantly more viable. The potential scale of this project linked to its good indicative conventional gold recoveries and its great location, being so close to Kalgoorlie, makes Northern Zone a highly attractive project to drill out. The four diamond drill holes on this cross-section confirmed the gold prospectivity of the Northern Zone Project and we look forward to drilling further along strike to start building a maiden JORC compliant resource early in the new year."
The Northern Zone Project has an Exploration Target of 200 to 250 million tonnes at a grade of 0.4 g/t to 0.6 g/t for an Exploration Target of 2.5 to 4.8 million oz of gold, as announced by RGL on 9 May 2023.
The announcement published by Riversgold today is set out below without material adjustment and can be found at https://www.riversgold.com.au.
Riversgold Limited (ASX: RGL, Riversgold or the Company) announces that it has received the assay results from its maiden diamond drilling program at the Northern Zone Intrusive Hosted Gold Project located 25 km east of Kalgoorlie in Western Australia. Refer to Figure 1 for location.
On the 9 May 2023, RGL announced the 80% earn-in to the Northern Zone Gold Project with London listed Oracle Power Plc.1 RGL undertook a 4-hole diamond drill program for 1,379m (with orientated core) to specifically test the exploration model of +100m wide gold mineralisation. The drilling was completed on 21 August 2023 and all of the core was sent to ALS in Perth for core photographs, cutting and assaying. Assays results have now been received and interpreted and the work confirms the original mineralisation model, style, widths and grades.
Oracle have been informed of these results and will be furnished with the expenditure reports shortly that confirms the minimum requirements have been met for the 80% earn-in.
Located 175km due north of Northern Zone, Saturn Metals Limited has released a Preliminary Economic Assessment on the Apollo Hill Gold project that has a resource of 105Mt @ 0.54g/t gold for 1.839Moz.2 RGL views the Apollo project as an example of what we are looking to achieve at Northern Zone, albeit with Northern Zone being a potentially larger project.
Figure 1: Northern Zone Project Map showing proximity to the Kalgoorlie "Super Pit".
About North Zone Gold Project:
The Northern Zone Project is located 26km, east-south-east of the Kalgoorlie Super Pit and is readily accessed from the Bulong road, which is paved to within 9km of the prospect site. The last 9kms consists of 4km of a high-quality haul road with the last 5kms on a station road. The topography is flat lying, open scrub with several historical remnant gold and nickel excavation pits less than 5 kms from the prospect site.
Drilling Contractor DDH1 completed the drilling at Northern Zone using a combination of HQ3 and NQ2 diamond drilling. The core was logged by contract geologists in Kalgoorlie, with oversight from RGL geologists. The detailed logging has shown that a gold mineralisation event has introduced significant micro-fracturing and quartz veining, with significant thicknesses of alteration also observed. A central cross section completed as proof of model has validated (Figure 2) a portion of the project, with multiple untested areas.
Figure 2: Northern Zone drill collar plan highlighting validated (red hatched) area, gold mineralised zones, central cross section with untested areas. Mineralisation remains open in all directions.
The diamond drilling mineralisation intersections (Figure 3) show a thick east dipping zone of mineralisation across 21OPRC004, RSDD002 & RSDD003. The hatched zones are the interpreted mineralisation zones, with the main zone approximately 100m wide and a vertical extent 375m and remaining open at depth.
The plan view shows the hole deviations, due to this deviation; holes 21OPRC004 and RSDD002 indicate a minimum strike length of 70m to the zone of mineralisation.
The lack of mineralisation within the main zone in RSDD001 is inferred due to faulting. The intersection at depth in RSDD001 correlates with the lower zone.
Figure 3: Northern Zone central Plan & Cross Section (+/-50m) including RGL, Oracle and historic drill holes. (See Figure 2 for section line)
Conceptually, the company sees similarities between North Zone and Saturn Metals Apollo Hill project based on the information in the PEA statement (ASX 7 August 2023) of a large low grade heap leach operation; to further develop the concept the plans to:
· Undertake further metallurgical test work to confirm the amenability of the mineralization to leaching and develop initial estimates of reagent consumption
· Undertake further drilling towards defining a resource at Northern Zone, with step out drilling on 100m X-sections especially towards the untested southeast areas
This announcement has been authorised for release by the Board of Riversgold Ltd.
Competent Persons Statement
The Information in this report that relates to exploration results, exploration targets, mineral resources or ore reserves is based on information compiled by Mr Allan Younger, who is a Member of the Australasian Institute of Mining and Metallurgy. Mr Younger is a consultant to the company. Mr Younger has sufficient experience which is relevant to the style of mineralisation and type of deposits under consideration and to the activity that he is undertaking to qualify as a Competent Person as defined in the 2012 edition of the `Australian Code for Reporting Exploration Results, Mineral Resources and Ore Reserves' (the JORC Code). Mr Younger consents to the inclusion of this information in the form and context in which it appears in this report.
1 RGL ASX announcement 9 May 2023 "Farm into Significant Porphyry Hosted Gold Project"
2 STN ASX announcement 17 August 2023 "Updated Preliminary Economic Assessment
**ENDS**
For further information on Oracle Power Plc, visit the Company's website http://www.oraclepower.co.uk or contact:
Oracle Power PLC
Naheed Memon - CEO +44 (0) 203 580 4314
Strand Hanson Limited (Nominated Adviser and Joint Broker)
Rory Murphy, Matthew Chandler, Rob Patrick +44 (0) 20 7409 3494
Global Investment Strategy UK Limited (Joint Broker)
Samantha Esqulant +44 (0) 20 7048 9432
St Brides Partners Limited (Financial PR)
Susie Geliher, Isabel de Salis +44 (0) 20 7236 1177
This announcement contains inside information for the purposes of Article 7 of EU Regulation No. 596/2014, which forms part of United Kingdom domestic law by virtue of the European (Withdrawal) Act 2018.
APPENDIX 1: Drilling Information
Table 1: Northern Zone Drill Collar Locations
|
Hole ID |
Hole Type |
MGA Easting |
MGA Northing |
NAT_RL |
Max Depth |
Dip |
Azi |
|
RSDD01 |
DD |
381680.488 |
6592633.049 |
356.733 |
406 |
-60 |
215 |
|
RSDD02 |
DD |
381755.926 |
6592710.878 |
356.667 |
510.1 |
-60 |
215 |
|
RSDD03 |
DD |
381833.364 |
6592794.438 |
356.193 |
162.6 |
-60 |
215 |
|
RSDD04 |
DD |
381593.727 |
6592554.988 |
356.697 |
300.2 |
-60 |
215 |
Table 2: Northern Zone Drill significant intercepts
|
Hole Id |
|
|
Width |
Ave Grade |
From |
To |
Intercept |
|
RSDD01 |
|
|
47 |
0.48 |
216 |
263 |
47m @ 0.48g/t Au |
|
|
Incl |
|
1 |
4.74 |
244 |
245 |
|
|
|
Incl |
|
1 |
4.04 |
262 |
263 |
|
|
RSDD02 |
|
|
8 |
0.55 |
127 |
135 |
8m @ 0.55g/t Au |
|
RSDD02 |
|
|
8 |
0.31 |
185 |
193 |
8m @ 0.31g/t Au |
|
RSDD02 |
|
|
110 |
0.6 |
208 |
318 |
110m @ 0.6g/t Au |
|
|
Incl |
|
2 |
2.64 |
208 |
210 |
|
|
|
Incl |
|
5 |
3.03 |
221 |
226 |
|
|
|
|
Incl |
1 |
9.41 |
225 |
226 |
|
|
|
Incl |
|
1 |
4.77 |
248 |
249 |
|
|
|
Incl |
|
1 |
5.26 |
262 |
263 |
|
|
|
Incl |
|
13 |
1.29 |
274 |
287 |
|
|
|
|
Incl |
1 |
6.43 |
277 |
278 |
|
|
RSDD02 |
|
|
8 |
0.35 |
355 |
363 |
8m @ 0.35g/t Au |
|
RSDD03 |
|
|
16.4 |
0.45 |
83.6 |
100 |
16.4m @ 0.45g/t Au |
|
RSDD03 |
|
|
13.01 |
0.48 |
135 |
148.01 |
13m @ 0.48g/t Au |
|
RSDD03 |
|
|
11 |
0.49 |
197 |
208 |
11m @ 0.49g/t Au |
|
RSDD03 |
|
|
26 |
0.44 |
231 |
257 |
26m @ 0.44g/t Au |
|
|
Incl |
|
1 |
5.44 |
332 |
333 |
|
|
|
Incl |
|
1 |
5.28 |
352 |
353 |
|
|
RSDD03 |
|
|
84 |
0.42 |
315 |
399 |
84m @ 0.42g/t Au |
|
|
Incl |
|
3.32 |
2.73 |
332 |
335.32 |
|
|
RSDD03 |
|
|
8 |
0.45 |
481 |
489 |
11m @ 0.45g/t Au |
|
RSDD04 |
|
|
4 |
0.52 |
34 |
38 |
4m @ 0.52g/t Au |
|
RSDD04 |
|
|
8 |
0.43 |
77 |
85 |
8m @ 0.43g/t Au |
|
RSDD04 |
|
|
4 |
0.47 |
92 |
96 |
4m @ 0.47g/t Au |
Table 3: Northern Zone Drill Assays >0.25g/t Au. (Values >1g/t Au in bold)
|
Hole ID |
From |
To |
Width |
Au |
As |
S% |
|
RSDD01 |
40.2 |
41 |
0.8 |
1.64 |
1 |
0.03 |
|
RSDD01 |
42 |
43 |
1 |
0.773 |
1 |
0.1 |
|
RSDD01 |
73 |
74 |
1 |
2.08 |
2 |
0.03 |
|
RSDD01 |
74 |
75 |
1 |
0.946 |
1 |
0.03 |
|
RSDD01 |
112 |
113 |
1 |
0.648 |
2 |
0.66 |
|
RSDD01 |
117 |
118 |
1 |
2.89 |
2 |
2.26 |
|
RSDD01 |
128 |
129 |
1 |
0.279 |
1 |
0.69 |
|
RSDD01 |
173 |
174 |
1 |
0.281 |
2 |
0.31 |
|
RSDD01 |
174 |
175 |
1 |
0.362 |
3 |
0.34 |
|
RSDD01 |
177.5 |
178 |
0.5 |
0.354 |
2 |
0.17 |
|
RSDD01 |
195 |
196 |
1 |
0.269 |
3 |
0.08 |
|
RSDD01 |
197.53 |
198.5 |
0.97 |
0.262 |
1 |
0.55 |
|
RSDD01 |
198.5 |
199.5 |
1 |
0.333 |
2 |
0.51 |
|
RSDD01 |
216 |
217 |
1 |
0.72 |
3 |
0.81 |
|
RSDD01 |
217 |
218 |
1 |
1.63 |
4 |
0.32 |
|
RSDD01 |
224 |
225 |
1 |
2.6 |
2 |
0.81 |
|
RSDD01 |
230 |
231 |
1 |
1.92 |
3 |
0.25 |
|
RSDD01 |
238 |
239 |
1 |
0.727 |
4 |
0.79 |
|
RSDD01 |
240 |
241 |
1 |
0.274 |
3 |
0.23 |
|
RSDD01 |
244 |
245 |
1 |
4.74 |
2 |
0.85 |
|
RSDD01 |
248 |
249 |
1 |
0.386 |
4 |
0.55 |
|
RSDD01 |
249 |
250 |
1 |
0.412 |
2 |
0.34 |
|
RSDD01 |
252 |
253 |
1 |
0.371 |
4 |
0.43 |
|
RSDD01 |
254 |
255 |
1 |
1.67 |
1 |
0.49 |
|
RSDD01 |
258 |
259 |
1 |
0.379 |
1 |
0.33 |
|
RSDD01 |
259 |
260 |
1 |
0.316 |
1 |
0.13 |
|
RSDD01 |
260 |
261 |
1 |
0.278 |
1 |
0.32 |
|
RSDD01 |
262 |
263 |
1 |
4.04 |
1 |
1.03 |
|
RSDD01 |
273 |
274 |
1 |
0.696 |
1 |
0.1 |
|
RSDD01 |
280 |
281 |
1 |
1.78 |
1 |
1.02 |
|
RSDD01 |
281 |
282 |
1 |
0.478 |
1 |
0.46 |
|
RSDD01 |
284 |
285 |
1 |
0.531 |
2 |
0.62 |
|
RSDD02 |
77.7 |
79 |
1.3 |
0.327 |
2 |
0.005 |
|
RSDD02 |
122 |
123 |
1 |
0.423 |
1 |
0.09 |
|
RSDD02 |
127 |
128 |
1 |
0.386 |
2 |
0.31 |
|
RSDD02 |
128 |
129 |
1 |
1.02 |
1 |
0.37 |
|
RSDD02 |
131 |
132 |
1 |
1.37 |
2 |
0.66 |
|
RSDD02 |
132 |
133 |
1 |
0.281 |
2 |
0.37 |
|
RSDD02 |
134 |
135 |
1 |
1.005 |
1 |
0.15 |
|
RSDD02 |
138 |
139 |
1 |
0.274 |
2 |
0.14 |
|
RSDD02 |
165 |
166 |
1 |
1.51 |
1 |
0.23 |
|
RSDD02 |
176 |
177 |
1 |
1.265 |
1 |
0.28 |
|
RSDD02 |
185 |
186 |
1 |
0.347 |
1 |
0.29 |
|
RSDD02 |
186 |
187 |
1 |
0.333 |
1 |
0.15 |
|
RSDD02 |
190 |
191 |
1 |
1.015 |
1 |
0.1 |
|
RSDD02 |
192 |
193 |
1 |
0.401 |
1 |
0.04 |
|
RSDD02 |
208 |
209 |
1 |
4.92 |
1 |
0.1 |
|
RSDD02 |
209 |
210 |
1 |
0.364 |
1 |
0.33 |
|
RSDD02 |
214 |
215 |
1 |
0.887 |
2 |
0.28 |
|
RSDD02 |
221 |
222 |
1 |
2.03 |
2 |
0.28 |
|
RSDD02 |
222 |
223 |
1 |
0.59 |
1 |
0.4 |
|
RSDD02 |
223 |
224 |
1 |
0.326 |
1 |
0.47 |
|
RSDD02 |
224 |
225 |
1 |
2.81 |
2 |
0.47 |
|
RSDD02 |
225 |
226 |
1 |
9.41 |
1 |
0.34 |
|
RSDD02 |
226 |
227 |
1 |
0.256 |
1 |
0.33 |
|
RSDD02 |
232 |
233 |
1 |
0.259 |
2 |
0.42 |
|
RSDD02 |
238 |
239 |
1 |
0.37 |
3 |
0.4 |
|
RSDD02 |
239 |
240 |
1 |
0.711 |
4 |
0.67 |
|
RSDD02 |
240 |
241 |
1 |
0.784 |
3 |
0.56 |
|
RSDD02 |
241 |
242 |
1 |
0.283 |
6 |
0.52 |
|
RSDD02 |
242 |
243 |
1 |
0.503 |
8 |
0.61 |
|
RSDD02 |
244 |
245 |
1 |
2.74 |
1 |
0.65 |
|
RSDD02 |
246 |
247 |
1 |
0.26 |
2 |
0.45 |
|
RSDD02 |
247 |
248 |
1 |
0.334 |
3 |
0.42 |
|
RSDD02 |
248 |
249 |
1 |
4.77 |
2 |
0.85 |
|
RSDD02 |
249 |
250 |
1 |
0.252 |
2 |
0.88 |
|
RSDD02 |
259 |
260 |
1 |
0.84 |
2 |
0.24 |
|
RSDD02 |
262 |
263 |
1 |
5.26 |
2 |
0.07 |
|
RSDD02 |
264 |
265 |
1 |
0.51 |
1 |
0.19 |
|
RSDD02 |
270 |
271 |
1 |
0.281 |
3 |
0.2 |
|
RSDD02 |
271 |
272 |
1 |
0.689 |
3 |
0.16 |
|
RSDD02 |
273 |
274 |
1 |
0.73 |
3 |
0.47 |
|
RSDD02 |
274 |
275 |
1 |
1.095 |
4 |
0.57 |
|
RSDD02 |
275 |
276 |
1 |
2.21 |
3 |
0.65 |
|
RSDD02 |
276 |
277 |
1 |
0.733 |
4 |
0.67 |
|
RSDD02 |
277 |
278 |
1 |
6.43 |
4 |
0.96 |
|
RSDD02 |
278 |
279 |
1 |
0.356 |
2 |
0.27 |
|
RSDD02 |
280 |
281 |
1 |
0.532 |
2 |
0.27 |
|
RSDD02 |
281 |
282 |
1 |
0.735 |
2 |
0.38 |
|
RSDD02 |
282 |
283 |
1 |
1.395 |
4 |
0.56 |
|
RSDD02 |
285 |
286 |
1 |
2.49 |
1 |
0.45 |
|
RSDD02 |
286 |
287 |
1 |
0.447 |
1 |
0.29 |
|
RSDD02 |
289 |
290 |
1 |
0.376 |
2 |
0.53 |
|
RSDD02 |
297 |
298 |
1 |
0.29 |
2 |
0.24 |
|
RSDD02 |
298 |
299 |
1 |
0.532 |
3 |
0.31 |
|
RSDD02 |
301 |
302 |
1 |
0.72 |
4 |
0.62 |
|
RSDD02 |
306 |
307 |
1 |
0.423 |
1 |
1.88 |
|
RSDD02 |
307 |
308 |
1 |
0.589 |
1 |
1.22 |
|
RSDD02 |
315 |
316 |
1 |
0.605 |
2 |
1.12 |
|
RSDD02 |
316 |
317 |
1 |
0.423 |
1 |
1.15 |
|
RSDD02 |
346 |
347 |
1 |
1.26 |
1 |
0.4 |
|
RSDD02 |
356 |
357 |
1 |
0.311 |
3 |
0.67 |
|
RSDD02 |
357 |
358 |
1 |
0.314 |
1 |
0.45 |
|
RSDD02 |
359 |
360 |
1 |
1.015 |
1 |
0.16 |
|
RSDD02 |
362 |
363 |
1 |
0.811 |
1 |
0.21 |
|
RSDD02 |
365 |
366 |
1 |
0.33 |
1 |
0.17 |
|
RSDD02 |
388 |
389 |
1 |
0.268 |
1 |
0.66 |
|
RSDD03 |
83.6 |
85 |
1.4 |
0.431 |
2 |
0.02 |
|
RSDD03 |
85 |
86 |
1 |
0.306 |
1 |
0.03 |
|
RSDD03 |
86 |
87 |
1 |
0.312 |
2 |
0.04 |
|
RSDD03 |
88 |
89 |
1 |
1.87 |
1 |
0.15 |
|
RSDD03 |
89 |
90 |
1 |
0.309 |
1 |
0.06 |
|
RSDD03 |
91 |
92 |
1 |
0.397 |
2 |
0.03 |
|
RSDD03 |
92 |
93 |
1 |
0.592 |
3 |
0.09 |
|
RSDD03 |
96 |
97 |
1 |
0.459 |
2 |
0.03 |
|
RSDD03 |
97 |
98 |
1 |
0.477 |
1 |
0.1 |
|
RSDD03 |
98 |
99 |
1 |
0.556 |
2 |
0.14 |
|
RSDD03 |
99 |
100 |
1 |
0.796 |
1 |
0.28 |
|
RSDD03 |
105 |
106 |
1 |
0.254 |
1 |
0.16 |
|
RSDD03 |
112 |
113 |
1 |
0.909 |
2 |
1.02 |
|
RSDD03 |
113 |
114 |
1 |
0.271 |
1 |
0.36 |
|
RSDD03 |
135 |
136.01 |
1.01 |
1.94 |
1 |
0.38 |
|
RSDD03 |
136.01 |
137 |
0.99 |
1.795 |
1 |
0.35 |
|
RSDD03 |
138 |
138.98 |
0.98 |
0.362 |
1 |
0.24 |
|
RSDD03 |
141.98 |
143 |
1.02 |
0.308 |
1 |
0.14 |
|
RSDD03 |
144 |
145 |
1 |
0.949 |
1 |
0.16 |
|
RSDD03 |
147 |
148.01 |
1.01 |
0.338 |
1 |
0.21 |
|
RSDD03 |
157 |
158 |
1 |
0.984 |
1 |
0.66 |
|
RSDD03 |
176 |
177 |
1 |
0.458 |
1 |
0.31 |
|
RSDD03 |
183 |
184 |
1 |
0.382 |
1 |
0.12 |
|
RSDD03 |
197 |
198 |
1 |
1.37 |
1 |
0.28 |
|
RSDD03 |
198 |
199 |
1 |
0.811 |
2 |
0.12 |
|
RSDD03 |
199 |
200 |
1 |
0.297 |
1 |
0.22 |
|
RSDD03 |
200 |
201 |
1 |
0.29 |
1 |
0.44 |
|
RSDD03 |
203 |
204 |
1 |
1.3 |
1 |
0.51 |
|
RSDD03 |
206 |
207 |
1 |
0.417 |
1 |
0.18 |
|
RSDD03 |
207 |
208 |
1 |
0.479 |
1 |
0.19 |
|
RSDD03 |
210 |
211 |
1 |
0.329 |
1 |
0.43 |
|
RSDD03 |
217 |
218 |
1 |
0.303 |
1 |
0.15 |
|
RSDD03 |
223 |
224 |
1 |
0.565 |
1 |
0.18 |
|
RSDD03 |
231 |
232 |
1 |
0.309 |
2 |
0.3 |
|
RSDD03 |
233 |
234 |
1 |
1.58 |
1 |
0.66 |
|
RSDD03 |
239 |
240 |
1 |
0.497 |
1 |
0.25 |
|
RSDD03 |
246 |
247 |
1 |
0.971 |
2 |
0.56 |
|
RSDD03 |
248 |
249 |
1 |
1.53 |
1 |
0.29 |
|
RSDD03 |
252 |
253 |
1 |
3.83 |
1 |
0.54 |
|
RSDD03 |
253 |
254 |
1 |
0.364 |
2 |
0.25 |
|
RSDD03 |
256 |
257 |
1 |
0.31 |
2 |
0.58 |
|
RSDD03 |
283 |
284 |
1 |
0.613 |
4 |
0.98 |
|
RSDD03 |
286 |
287 |
1 |
0.302 |
4 |
0.77 |
|
RSDD03 |
294.08 |
295 |
0.92 |
0.302 |
3 |
0.35 |
|
RSDD03 |
311 |
312 |
1 |
0.577 |
2 |
0.41 |
|
RSDD03 |
315 |
316 |
1 |
0.764 |
2 |
0.26 |
|
RSDD03 |
318 |
319 |
1 |
0.317 |
1 |
0.14 |
|
RSDD03 |
319 |
319.68 |
0.68 |
0.266 |
2 |
0.38 |
|
RSDD03 |
320.65 |
321.59 |
0.94 |
0.349 |
2 |
0.3 |
|
RSDD03 |
324 |
325 |
1 |
0.36 |
1 |
0.37 |
|
RSDD03 |
327 |
328 |
1 |
0.755 |
1 |
0.33 |
|
RSDD03 |
332 |
333 |
1 |
5.44 |
1 |
0.29 |
|
RSDD03 |
333.88 |
334.48 |
0.6 |
4.44 |
2 |
0.62 |
|
RSDD03 |
334.48 |
335.32 |
0.84 |
1.07 |
1 |
0.48 |
|
RSDD03 |
337 |
338 |
1 |
0.342 |
2 |
0.35 |
|
RSDD03 |
338 |
339 |
1 |
0.263 |
3 |
0.12 |
|
RSDD03 |
339 |
340 |
1 |
1.7 |
2 |
0.28 |
|
RSDD03 |
342 |
343 |
1 |
0.829 |
1 |
0.5 |
|
RSDD03 |
343 |
344 |
1 |
0.476 |
1 |
0.29 |
|
RSDD03 |
346 |
347 |
1 |
1.035 |
1 |
0.31 |
|
RSDD03 |
348 |
349 |
1 |
0.425 |
2 |
0.44 |
|
RSDD03 |
350 |
351 |
1 |
0.95 |
2 |
0.22 |
|
RSDD03 |
351 |
352 |
1 |
0.54 |
1 |
0.33 |
|
RSDD03 |
352 |
353 |
1 |
5.28 |
1 |
0.45 |
|
RSDD03 |
358 |
359.61 |
1.61 |
0.739 |
1 |
0.17 |
|
RSDD03 |
359.61 |
360 |
0.39 |
0.433 |
1 |
0.58 |
|
RSDD03 |
365 |
366 |
1 |
0.316 |
2 |
0.25 |
|
RSDD03 |
370 |
371 |
1 |
1.02 |
1 |
0.25 |
|
RSDD03 |
374 |
375 |
1 |
0.343 |
2 |
0.68 |
|
RSDD03 |
382 |
383 |
1 |
0.63 |
1 |
0.64 |
|
RSDD03 |
384.48 |
385 |
0.52 |
0.296 |
1 |
0.59 |
|
RSDD03 |
385.45 |
386.14 |
0.69 |
0.665 |
1 |
0.71 |
|
RSDD03 |
386.14 |
387 |
0.86 |
0.377 |
1 |
0.38 |
|
RSDD03 |
393 |
394 |
1 |
0.483 |
2 |
0.43 |
|
RSDD03 |
395 |
396 |
1 |
0.277 |
1 |
0.96 |
|
RSDD03 |
398 |
399 |
1 |
1.54 |
1 |
0.76 |
|
RSDD03 |
399 |
400 |
1 |
0.253 |
2 |
0.53 |
|
RSDD03 |
408 |
408.68 |
0.68 |
0.374 |
2 |
0.49 |
|
RSDD03 |
413.78 |
414.37 |
0.59 |
0.279 |
1 |
0.62 |
|
RSDD03 |
441 |
442 |
1 |
0.332 |
2 |
0.46 |
|
RSDD03 |
443 |
444 |
1 |
0.293 |
1 |
0.33 |
|
RSDD03 |
446 |
447 |
1 |
0.354 |
1 |
0.23 |
|
RSDD03 |
447 |
448 |
1 |
0.349 |
2 |
0.26 |
|
RSDD03 |
454 |
455 |
1 |
2.72 |
1 |
0.57 |
|
RSDD03 |
471 |
472 |
1 |
0.402 |
1 |
0.13 |
|
RSDD03 |
472 |
473 |
1 |
0.374 |
1 |
0.3 |
|
RSDD03 |
475 |
476 |
1 |
0.656 |
1 |
0.1 |
|
RSDD03 |
481 |
482 |
1 |
0.45 |
1 |
0.27 |
|
RSDD03 |
486 |
487 |
1 |
1.285 |
1 |
0.52 |
|
RSDD03 |
487 |
488 |
1 |
0.386 |
1 |
0.32 |
|
RSDD03 |
488 |
489 |
1 |
0.372 |
1 |
0.43 |
|
RSDD04 |
34 |
35 |
1 |
0.756 |
10 |
0.02 |
|
RSDD04 |
35 |
36 |
1 |
0.536 |
1 |
0.01 |
|
RSDD04 |
36 |
37 |
1 |
0.374 |
3 |
0.04 |
|
RSDD04 |
37 |
38 |
1 |
0.394 |
1 |
0.03 |
|
RSDD04 |
77 |
78 |
1 |
2.18 |
2 |
0.01 |
|
RSDD04 |
81 |
82 |
1 |
0.33 |
4 |
0.21 |
|
RSDD04 |
84 |
85 |
1 |
0.277 |
3 |
0.1 |
|
RSDD04 |
92 |
93 |
1 |
0.692 |
5 |
1.2 |
|
RSDD04 |
93 |
94 |
1 |
0.499 |
2 |
1.62 |
|
RSDD04 |
95 |
96 |
1 |
0.67 |
2 |
1.9 |
|
RSDD04 |
104 |
105 |
1 |
0.661 |
1 |
0.32 |
|
RSDD04 |
124 |
125 |
1 |
0.509 |
1 |
0.21 |
|
RSDD04 |
136 |
137 |
1 |
0.762 |
1 |
0.41 |
|
RSDD04 |
146 |
147 |
1 |
0.376 |
3 |
0.3 |
|
RSDD04 |
152 |
153 |
1 |
0.656 |
6 |
3.15 |
|
RSDD04 |
157 |
158 |
1 |
0.353 |
1 |
0.25 |
APPENDIX 2.
The following Tables are provided to ensure compliance with the JORC Code (2012 Edition) requirements for the reporting of Exploration Results at Northern Zone.
Section 1: Sampling Techniques and Data
(Criteria in this section applies to all succeeding sections)
|
Criteria |
JORC Code explanation |
Commentary |
|
Sampling techniques |
· Nature and quality of sampling (eg 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 (eg '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 (eg submarine nodules) may warrant disclosure of detailed information. |
· The samples were whole core HQ3 or NQ2 sized, with roller pre-collars.
|
|
Drilling techniques |
· Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg 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). |
· Diamond core HQ3 or NQ2 sized, with roller pre-collars. The core has been oriented with standard and modern down hole orientation techniques.
|
|
Drill sample recovery |
· 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. |
· Recovery logs were recorded by the field geologist. Recovery was excellent even through broken ground. |
|
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. |
· The core has been professionally logged by Kalgoorlie based consultant and contract geologists with oversight from RGL geologists. 100% of the core has been logged. |
|
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. |
· The core has been sampled as half core at the completion of full geological and structural logging. . |
|
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 (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established. |
· ALS (Perth) were used for all analysis of drill samples submitted by RGL. The laboratory techniques below are for all samples submitted to ALS and are considered appropriate for the style of mineralisation defined within the Northern Zone Project area: · Pulverise to 95% passing 75 microns · 4 Acid Digest (ME-ICP41) - Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, K, La, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Sc, Sr, Th, Ti, Tl, U, V, W, Zn. · Au-ICP22 - Au. · Ore Grade 4 Acid Digest ICP-AES Finish (Au-GRA22) · Standards were used for external laboratory checks by RGL. · Duplicates were used for external laboratory checks by RGL. |
|
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. |
· Intercepts were reviewed by 2 company personnel. |
|
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. |
· The collar position of each hole was recorded using handheld GPS. The down hole survey data was taken at 30m using standard down hole gyro tools. |
|
Data spacing and distribution |
· Data spacing for reporting of Exploration Results. · Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied. · Whether sample compositing has been applied. |
· The holes were drilled on a single section, between existing RC holes. This spacing is sufficient to establish grade and geological continuity of this particular drill section. |
|
Orientation of data in relation to geological structure |
· Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known, considering the deposit type. · If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material. |
· RGL is yet to drill further sections. Based on logging of diamond core the section and drill holes appear to be orientated perpendicular to strike and dip of the main mineralised structures. |
|
Sample security |
· The measures taken to ensure sample security. |
· The core was collected from the rig by BMGS contract geologists and stored securely in their Kalgoorlie yard where it was logged. The core was then strapped and wrapped and shipped via commercial transport to ALS in Perth. |
|
Audits or reviews |
· The results of any audits or reviews of sampling techniques and data. |
· Data reviews will be conducted when all of the final assay results have been received from the lab. |
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 land tenure status |
· Type, reference name/number, location and ownership including agreements 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. · The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area. |
· The Northern Zone Project is comprised of one granted prospecting licence (P25/2651) which covers an area of 82 hectares, and is held in the name of Oracle Gold (WA) Pty Ltd. · RGL are farming into the Tenement and have committing to spend $600,000 in exploration expenditure on the tenement within the next two years. After Riversgold achieves 80% ownership, Oracle will be required to contribute pro-rata or dilute. |
|
Exploration done by other parties |
· Acknowledgment and appraisal of exploration by other parties. |
· See reference in the body of the announcement. · The majority of previous exploration in the area was by Northern Mining during 2007 to 2012 under the Blair North project, multiple small resource areas were identified at the George's Reward area to the south of P25/2651. Numerous intersections were made within the area of the PL including BNRC066 listed below.
|
|
Geology |
· Deposit type, geological setting and style of mineralisation. |
· The deposit sought is (Intrusion Related Gold System (IRGS) style of mineral deposit.
|
|
Drill hole Information |
· A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes: o easting and northing of the drill hole collar o elevation or RL (Reduced Level - elevation above sea level in metres) of the drill hole collar o dip and azimuth of the hole o down hole length and interception depth o hole length. · If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case. |
· Refer to Tables and Figures within the body of the release. |
|
Data aggregation methods |
· In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated. · Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail. · The assumptions used for any reporting of metal equivalent values should be clearly stated. |
· Intersections are weighted average grades based on a 0.001 g/t Au cut-off with unlimited waste zones but with a targeted grade of 0.4-0.6g/t Au.
|
|
Relationship between mineralisation widths and intercept lengths |
· These relationships are particularly important in the reporting of Exploration Results. · If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported. · If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg 'down hole length, true width not known'). |
· The diamond drilling confirmed the apparent widths of mineralization intersection in the RC drilling. The true width of mineralization is still to be fully ascertained. |
|
Diagrams |
· Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views. |
· See body of the announcement for relevant diagrams and photos. |
|
Balanced reporting |
· Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results. |
· The reporting of exploration results is considered balanced by the competent person. |
|
Other substantive exploration data |
· Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples - size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances. |
· See body of the announcement |
|
Further work |
· The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling). · Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive. |
· The initial aims of the first phase of diamond drilling exploration at Northern Zone has confirmed the mineralisation style, confirmed the very wide widths of mineralisation, and confirmed gold grades and gold distribution. · Follow up phases to test strike to be undertaken. · Core from phase 1 to allow for further metallurgical studies.
|
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