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Augustus Minerals (ASX: AUG; Augustus or the Company) is pleased to announce the latest soil sampling and follow-up rock chip results from the Company’s Ti-Tree project. Review of soil sampling data from the program started earlier in the year has identified several new targets (Justinian) and/or extensions to existing prospects (Crawford in the west of the project area) and possible extensions to Coo Creek.
Augustus Minerals has received new assays from ongoing soil sampling and rock chip sampling programs conducted on the Justinian prospect and adjacent areas at the Ti- Tree Project, in Western Australia
- High grade rock chips assaying up to 16% copper and up to 5.32g/t gold have been identified from field work over a 3.3 x 1.1km area
- The copper and gold identified in rock chips supports the anomalous soil sampling results from the recent regional survey.
- The soil and rock chip results define areas of Cu and Au anomalism related to splays of the Ti-Tree Shear wrapping around the Crawford Granite.
- Other anomalous soils have identified areas for further mapping and rock chip sampling north and west of Crawford Bore, and west of Coo Creek Broken Hill Style target.
- Elevated copper and lead in soils identified on a NE trending shear at Howell’s Gap
- Strong base metal anomalism over the Moogooree carbonate hosted Zn-Pb target.
Mapping and field work is continuing to increase the definition and tenor of anomalies to drill targets for future programs.
The soil samples, sieved in the field to pass -80#, were scanned by Portable Spectral Services (PSS) at their West Perth office under controlled conditions. In the western Ti-Tree area, above background levels of Cu, Pb and Zn were returned which defined adjacent or frequently coincident trends (Figure 2). Figure 3 shows Cu-in-soils and copper in rock chips. The validity of the soil anomalies was validated by some overlap between historic sampling using traditional wet assay methods and the new pXRF data.
Gold-in-soils was determined by 50g Fire Assay at Intertek’s Perth laboratory.
Figure 1 Prospects and VTEM Survey areas
Table 1 Significant Rock Chips Justinian (>0.1% Cu, 0.1g/t Au or 0.1% Pb).
Justinian Prospect
Review of soil sampling data from the regional soil program has identified several new targets and/or extensions to existing prospects.
Previous rock chip sampling1 identified gold to 10.1g/t at Justinian (Figures 1 and 2). Further rock chips within the soil anomaly have returned assays to 5.32g/t Au (WA001301) and 16% Cu (WA001310) (Table 1).
Justinian also shows anomalous levels of lead and zinc (Figure 2).
The mineralisation is dominantly hosted within the Leake Springs Metamorphics, a complex package of pelitic schist and fine-grained often garnet rich psammite.
Figures 3 and 4 show Au and Cu respectively in soil (pXRF results) and rock chips (four acid digest or aqua regia digest) at the Justinian prospect. The validity of the soil anomalies was validated by some overlap between historic sampling using traditional wet assay methods and the new pXRF data.
The Justinian prospect has been extended to cover a 3.2km x 1.1km area containing several distinct soil anomalies which appear to be coincident with diffracted splays of the Ti-Tree Shear around the Crawford Granite intrusions. It is possible that the diffraction around the more rigid granite bodies is causing dilation where the Ti-Tree Shear splays penetrate the host Leake Springs Metamorphics.
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This article includes content from Augustus Minerals, 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.
AUG: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.
