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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
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.
Maiden Drill Program Set to Commence at the High-Priority Cangallo Porphry Copper Project
- Maiden RC drill program to commence at Cangallo in mid-December
- Program will test a large-scale, undrilled porphyry copper target
- Assay results expected around the end of January 2025
- Permitting underway for drill programs across other high-priority, large-scale porphyry copper targets at Lantana and Playa Kali
Access and drill pad preparations have commenced with drilling scheduled to start around mid-December. The planned program, which comprises a minimum of eight drill-holes for a total of ~2,500m, will take 3 to 4 weeks to complete with assay results expected around the end of January 2025.
Figure 1: Cangallo Porphyry Copper Prospect showing copper and molybdenum values and permitted drill sites.
Geological mapping and rock-chip sampling has outlined a partially exposed potential copper (+/- gold) porphyry system, within a large-scale (3km x 2km) caldera-like structure containing extensive colluvial and younger sediment cover.
The initial drilling program will test areas containing relatively intense veining (quartz) and porphyritic dykes, where higher copper (up to 0.65% Cu) and gold (up to 0.3g/t Au) values have been found. The possibility of a buried porphyry copper system beneath the extensive cover within the interpreted caldera-like structure will also be tested.
Cangallo is located close to significant infrastructure and is approximately 25km from the town of Chala, and within 10km of the coast.
Commenting on the imminent commencement of drilling at Cangallo, AusQuest’s Managing Director, Graeme Drew, said:
“This is a very exciting time for the Company as we are about to commence the maiden drill program at this high-priority porphyry copper target in Peru which we have been working towards for over 12 months.
Cangallo has never been drilled before and demonstrates classic geochemical and alteration signatures which suggest there is significant potential to discover large-scale copper porphyry mineralisation.
Success at Cangallo has potential to create significant value for our shareholders and we look forward to keeping our shareholders updated as the results become available.”
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This article includes content from AusQuest 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.
