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Bryah Resources Limited (ASX: BYH, “Bryah” or “the Company”) is pleased to announce that it has received results from its diamond drilling programme at the Bryah Basin Windalah copper-gold project. Bryah was granted $140,000 under the Western Australian Government’s EIS (Exploration Incentive Scheme) to test the Windalah VMS target.
HIGHLIGHTS
- Results received for 717m diamond drilling program completed in late 2022.
- Best results include:
- 2m @ 3.88 g/t Au from 437m in BBRD072
- 1m @ 0.35% Cu from 429m in BBRD072
- Targeting Cu-Au VMS mineralisation at 300m and 500m depth
- Deep VMS targets are a product of multiple lines of strong geological evidence.
- Downhole electromagnetic surveys to test for off-hole conductors anticipated to commence in H2 2023.
- WA State Government EIS Co-funding for $140,0001
Commenting on the announcement Bryah CEO Ashley Jones said:
We have again strong indications of copper in the system, especially with secondary copper mineralisation observed in the core. These deep holes now are the focus for the down hole electromagnetic (DHEM) surveys. The DHEM can identify conductors, which will show any copper mineralisation withing the vicinity. Depending on the orientation, the DHEM will search up to 150m radius around the holes. This will cover a lot of the prospective area. Any sign of a conductor will establish new drill targets.”
Figure 1 Bryah Basin Tenements and Regional Geology Map.
Windalah Diamond Drilling
During this EIS co-funded drilling programme, Bryah completed 1261m of drilling, including 544m of precollars, and 717m of NQ2 diamond core tails. These holes were drilled to test a steeply plunging target window targeting Cu-Au VMS mineralisation at ~300 and ~500m depth. These drillholes intersected substantial thickness of strongly silica-sericite-pyrite altered volcanic rocks similar to those observed in shallower holes, in the footwall to sulphide mineralisation. This is interpreted to be the lateral equivalent of the ‘ore stratigraphic horizon’ at Horseshoe Lights.
With previous drilling campaigns, Bryah has recognised the significance of the Windalah project through technical analysis which shows:
- High tenor geochemical anomaly in surface sampling and drilling results
- Up to 5.45m of massive, laminated sulphides interpreted as sedimentary exhalative in origin
- Up to 140m of sulphide stringers observed in diamond core interpreted as VMS style stringers within a silica-sericite-chlorite-pyrite altered feeder structure2
- Evidence of syn-volcanic faulting and stratigraphic asymmetry – common in VMS mineralisation systems.
- Secondary copper minerals including Bornite, Chalcopyrite and Malachite observed.
- Structural intersection of syn-VMS veins and stratigraphy indicate plunging target orientation.
- The Narracoota Formation is host to other major copper deposits including DeGrussa, and Horseshoe Lights.Evidence of VMS mineralisation also identified at the near-by Olympus prospect.3
VMS systems in the Bryah Basin are known to host high-grade copper-gold deposits such as Sandfire’s DeGrussa and Monty mines and the historical Horseshoe Lights mine, located 13 kilometres to the north of Bryah’s Windalah Prospect. The exploration target at Windalah occupies the same stratigraphic position as the Horseshoe Lights deposit.
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This article includes content from Bryah Resources, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
BYH:AU
High grade Assay Results Continue at Youanmi
- The latest batch of assays have been received from the 11,000m drilling program (both diamond core and reverse circulation) at the high gold-grade Youanmi Gold Project, located centrally in Western Australia’s prolific gold fields
- The recently-completed infill/exploration program aimed to improve resource confidence and open up corridors for resource growth; to underpin the Definitive Feasibility Study (DFS), and, additionally, provide sample material for ongoing metallurgical optimisation test-work for the DFS program
- Latest highlights from the program include:
- RXDD131: 4.38m @ 19.07 g/t Au from 387.98m,
- incl. 1.73m @ 41.43 g/t Au from 389.96m
- RXDD119: 4.56m @ 14.60 g/t Au from 220.64m
- RXDD115: 2.99m @ 21.11 g/t Au from 249.88m
- RXDD119: 4.0m @ 7.37 g/t Au from 162.0m
- RXDD132: 7.19m @ 3.90 g/t Au from 263.61m
- RXDD133: 2.83m @ 6.53 g/t Au from 431.00m
- RXDD128: 3.82m @ 4.51 g/t Au from 364.59m,
- incl. 1.73m @ 8.22 g/t Au from 364.59m
- incl. 1.73m @ 8.22 g/t Au from 364.59m
- RXDD122: 0.95m @ 13.50 g/t Au from 204.44m
- §These results further demonstrate the continuity of high- grade gold mineralisation along the Youanmi greenstone belt belt, and the potential for resource growth both at depth and along-strike, with discovery potential to the south
- 35,000m Step-up drill campaign well underway with the plan to bring forward ounces and increase the mine plan
The program focused on converting Inferred stopes at Pollard, United North and Youanmi Main to higher confidence Indicated classification and providing material for metallurgical testing for the upcoming Definitive Feasibility Study (DFS) – on track for H2 CY25.
This final consignment of diamond assay results are the fourth batch of assays results returned from the drill program and have been entirely drilled from the Pollard, Youanmi and United North areas (Figure 1).
Rox Resources’ Chief Executive Officer, Phillip Wilding, commented:
“It’s pleasing to round out the 11,000m RD and DD drilling program with another batch of excellent intercepts.
“More importantly, the program has significantly improved our knowledge of the high grade and underexplored Youanmi ore system, and shown that mineralisation remains open at depth.
“Next steps are to convert Inferred areas of the Resource to the higher confidence Indicated classification, and finalise key intercepts of sample material for metallurgical test work to feed into the Youanmi DFS.
“We are excited to have commenced the 35,000m Step-up program to potentially bring forward ounces in the mine plan and significantly increase the size of the Pollard ore zone.”
Youanmi Major Growth Drill program
Resource drilling has focused on converting selected Inferred stopes in the current Mineral Resource of 16.2Mt at 4.4g/t Au for 2.3Moz (Indicated: 10.7Mt at 4.5g/t Au for 1.6 Moz : Inferred 5.5Mt at 4.2g/t Au for 0.7 Moz) 1 to higher confidence Indicated classification at Pollard, United North and Youanmi Main as shown in plan on Figure 1. The drilling has also provided both sample material for metallurgical testing and valuable geological data for the pending Definitive Feasibility Study (“DFS”) planned for second half of 2025.
Figure 1: Plan view of the Youanmi Gold Project featuring drill hole collar locations and 2024 Resource outline overprinted on aerial photography
Outside of the immediate resource area, drilling was also conducted on near-mine exploration and focused on the Youanmi South prospect area, or Paddy’s Lode, first reporting high-grade intercepts in 20232. The drilling at Paddy’s has complimented the Company’s exploration strategy moving south along the Main Lode Shear Zone (MLSZ) and adding additional gold ounces to the Resource. Youanmi South has the potential to grow the Resource above the 103kozpa Production Target outlined in the recently completed Pre-Feasibility Study (“PFS”)3.
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This article includes content from Rox Resources Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
Drilling Commenced at Viani in Fiji
HIGHLIGHTS
- The Phase 1, three-hole diamond drilling program has commenced at the Viani Project, Fiji and will test for extensions to the quartz vein gold mineralisation at depth.
- Phase 1 is expected to be completed in early 2025, with plans for additional drilling under the same program dependent on the initial results
- The Viani Project (SPL1513) covers an area of approximately 200km2 and is largely underexplored.
- At the Dakuniba prospect within Viani, low sulphidation epithermal high-grade gold mineralisation has been mapped over >3km strike length.
- Diamond drilling completed by Japan International Cooperation Agency (JICA) in 1995 to 1997 intersected high-grade gold in low sulphidation epithermal quartz veins, including 0.6m @ 27.6 g/t Au.
Alice Queen’s Managing Director, Andrew Buxton said,
With drilling underway, Alice Queen is positioned to test the epithermal gold-style mineralisation identified in historic drilling at the Viani Project. Weather permitting, we anticipate completing the Phase 1, three-hole diamond drilling program in early 2025. Following this, our exploration team will mobilise the drill rig to the Sabeto Project in Fiji to maintain the momentum of this campaign. To deliver timely results to shareholders, we intend to accelerate the analysis of the drill core at ALS Brisbane.”
Image 1 – Diamond drilling at Viani
Details
Geology
The geology of the Viani Project (SPL 1513) comprises olivine basalts and volcaniclastics of the Natewa Volcanic Group which are intruded by andesite sills and dykes. In the 1940s, gold mineralisation was found by local prospectors near the village of Dakuniba. At Dakuniba, low sulphidation style epithermal gold occurs in quartz veins, and silicified rocks along a 3km long NE trending zone.
In 1995-1997, Japan International Cooperation Agency (JICA) drilled six diamond holes at Dakuniba and intersected high-grade gold in chalcedonic, crustiform, colloform banded quartz veins at depths of 50m to 100m below surface (i.e. MJVFV-5 intersected 2.2m @ 11.3 g/t Au, incl 0.6m @ 27.6 g/t Au at 121m downhole). This high-grade gold mineralisation is open in all directions.
Proposed Drill program
The initial Phase 1 drill program at Viani (see Table 1) will comprise three diamond drillholes designed to test continuity to the epithermal gold mineralisation previously intersected in JICA drillhole MJVFV- 5 (2.2m @ 11.3 g/t Au) (see Figure 2). The drilling will test for extensions to the gold mineralisation at depth and along strike.
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This article includes content from Alice Queen Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
