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West Cobar Metals Limited (“West Cobar”, ASX:WC1) is pleased to advise that assays from the latest drilling of its 100%-owned Bulla Park Copper - Antimony Project (Figure 1), located 110km west of Cobar in New South Wales have shown drill intersections of broad and consistent copper and antimony mineralisation.
Highlights
- Recent diamond drilling confirms a thick zone of antimony copper mineralisation at Bulla Park with structural control from a major WSW trending fault
- Provides further confidence of a large antimony copper system at Bulla Park supporting previous drilling results - 33m at 0.47% Cu and 0.15% Sb (19CA002, 229m to 262m)1
- BPD09 encountered copper - antimony grades up to 1m at 1.04% Cu, 0.55% Sb (204m to 205m)
- Broad intercepts from BPD09 include 190m at 0.23% Cu and 0.08% Sb from 128m
- Selected intersections from BPD09 include 66m at 0.34% Cu and 0.13% Sb, 7g/t Ag from 200m. Also:
- 4m at 0.44% Cu, 0.20% Sb and 7g/t Ag from 131m
- 10m at 0.47% Cu, 0.23% Sb and 9g/t Ag from 200m
- 4m at 0.53% Cu, 0.21% Sb and 10g/t Ag from 223m
- 13m at 0.45% Cu, 0.17% Sb and 7g/t Ag from 239m
- Gravity and aeromagnetic surveys indicate there is potential mineralisation along at least 1.8km of strike, over 350m of horizontal width and drill intersected thicknesses of approximately 60m
- Strong macroeconomic factors for antimony (prices are approx. US$22,700/t) and copper (prices are approx. US$9,300/t)*
- Antimony is on the critical mineral lists of both Australia and the US
- In addition, potential for stratiform massive sulphide silver – zinc - lead mineralisation exists south of the copper - antimony mineralisation
- Additional drilling planned to enable maiden antimony copper mineral resource estimate
West Cobar Metals’ Managing Director, Matt Szwedzicki, commented: “The Bulla Park project is shaping up to have potential for a major copper – antimony – silver deposit. The antimony content is exceptional and with the global prices of antimony trading at nearly 2.5 times the price of copper, it is a good time to have drilled through a major intercept of antimony mineralisation.
We are now planning the next drill program to follow the deposit along strike.”
Figure 1 - West Cobar’s Bulla Park Project exploration licences, interpreted geology and outline limits of aeromagnetic surveys flown.
Mineralisation is dominantly tetrahedrite (copper - antimony sulphide) and minor chalcopyrite and stibnite (antimony sulphide). Antimony grades in all drill hole intercepts are approximately 30% to 35% of the copper grade, reflecting the theoretical composition of tetrahedrite (Cu12Sb4S13).
The mineralisation has developed over several stages. Syn-depositional siderite alteration of Lower Devonian (Winduck Group) silty fossiliferous sandstones is accompanied by chalcopyrite and tetrahedrite. Synsedimentary microfaults and dewatering structures are common indicating a tectonically active depositional and mineralising environment. When subsequently lithified, brittle faulting and fracturing has resulted in siderite-barite stockwork veining and hydrothermal breccias with tetrahedrite as the main copper-antimony mineral. Later faulting is associated with tectonic breccias, massive siderite-barite veins up to 20m thick and tetrahedrite and stibnite crystals filling vughs and veins (Figures 2 and 3).
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This article includes content from West Cobar Metals 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.
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.
