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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 Massive Sulphide Intercepts Confirmed at Oval
HIGHLIGHTS:
- OVD027 confirms the continution of high grade massive sulphide from OVD0211 with an intercept of 6.1 metres of 4.16% Cu, 3.51% Ni, 0.G3g/t E3, and 0.13% Co from G8.2 metres encountered between broader high grade zones of:
- A dense disseminated intercept - 26.2 metres of 0.44% Cu, 0.52% Ni, 0.12g/t E3, and 0.03% Co from 72.0 metres and
- A net textured intercept - 15.3 metres of 1.15% Cu, 0.79% Ni, 0.35g/t E3, and 0.04% Co from 104.3 metres;
- A high grade broad intersection is confirmed at the central part of the Oval area by OVD026. It includes a massive sulphide intercept in hole OVD026 of 1.8 metres of 3.21% Cu, 3.32% Ni, 0.6Gg/t E3, and 0.14% Co from 105.0 metres within broader mineralisation of:
- 19.8 metres of 1.23% Cu, 0.98% Ni, 0.36g/t E3, and 0.05% Co from 91.2 metres.
OVD026 is located 100 metres northwest of the previously announced 8.8 metres of massive sulphide identified in drillhole OVD021.
On completion of the Phase 2 exploration work and receipt of all assays, Managing Director Gan-Ochir Zunduisuren, commented:“The 2024 Phase 1 and 2 drilling and exploration programs have confirmed the broad presence of high-grade mineralisation in the Oval gabbroic intrusion. The grades intercepted in some of the drillholes are exceptional and may be indicative of broader potential over a larger area, given Oval is a greenfields discovery.
The 2025 exploration program will focus on obtaining information on the size/metal content potential of the Oval Cu-Ni-PGE mineral system as well as targeting the possible deeper magmatic sources at Oval. Broader exploration is also planned at potential extensions of Oval and nearby look-a-like prospects. We look forward to updating shareholders on progress, with drilling expected to commence in around 8 weeks”.
Summary of Phase 2 exploration drilling at Oval Cu-Ni-PGE project
The Company’s recent drilling work has predominantly focused on finding high-grade mineralisation in the olivine-amphibole gabbro at the Oval project. The multiple intercepts of massive sulphide mineralisation with different ratios of metal contents throughout the Oval gabbroic intrusion is highly encouraging for the presence of one or more deeper sources of high grade mineralisation in the opinion of ABM.
Figure 1. Plan view of drillhole locations on high resolution magnetics map (RTP)
Drillhole OVD02c
Drillhole OVD026 was designed to test the Down-Hole Electromagnetic (DHEM) conductor plate identified as OVD007_L2_B (reinterpretation of OVD007_L2_A2 by Southern Geoscience Consultants), which exhibits a conductance of 1,000 siemens. The drilling intersected a total of 1G.8 metres of mineralisation with 1.23% Cu, 0.G8% Ni, 0.36g/t E3, and 0.05% Co from G1.2 metres including;
- 4.8 metres of @ 0.45% Cu, 0.43% of Ni, 0.14g/t E3, and 0.02% Co of dense disseminated mineralised gabbro from 91.2 metres,
- 6.6 metres of @ 1.56% Cu, 0.G0% Ni, 0.50g/t E3, and 0.04% Co of net textured mineralisation from G6.0 metres,
- 2.4 metres of @ 1.52% Cu, 1.3G% Ni, 0.43g/t E3, and 0.07% Co of semi massive sulphide mineralisation from 102.6 metres,
- 1.8 metres of @ 3.21% Cu, 3.32% Ni, 0.6Gg/t E3, and 0.14% Co of massive sulphide mineralisation from 105.0 metres, and
- 4.2 metres of @ 0.57% Cu, 0.45% of Ni, 0.21g/t E3, and 0.02% Co of dense disseminated mineralised gabbro from 106.9 metres (Table 1 provides a detailed breakdown of mineralisation intervals).
OVD026 is located in the Oval area, which is approximately 100 metres northwest of the previous intersection identified in drillhole OVD0213. This intercept may represent an extension of the known massive sulphide mineralisation in the Oval area and highlights the potential for further expansion of massive sulphide zones within the broader prospect area (Figures 1 and 3).
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This article includes content from Asian Battery Metals PLC, 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.
