Carawine’s Oakover Project, located in the highly prospective Eastern Pilbara region, comprises seven granted exploration licences and three exploration licence applications with a total area of about 2,654km2. All tenements are held 100% by the Company.
The Oakover Project is centred on the Proterozoic Oakover Basin, prospective for copper, cobalt, manganese and iron. At Western Star the Company is developing a significant carbonate-hosted copper target. Numerous additional historic copper prospects will be evaluated along with the area’s potential for significant manganese, and to a lesser extent, iron mineralisation.
Oakover and Paterson Project tenement location plan
The Western Star Prospect is a 500m x 500m area of Carawine Dolomite and Pinjian Chert Breccia hosting a number of historic workings and exploration costeans. Detailed geological mapping and rock chip sampling by Carawine has identified three main mineralised trends of high-grade copper mineralisation in breccia and vein stockworks in dolomite.
Western Star Prospect - copper breccia (left), copper vein stock work in stromatolitic dolomite (right).
Assay results from 27 rock chip samples of barren country rock, altered wall rock and mineralisation exposed in outcrop and in historic workings have returned assay values ranging from less than 0.1% up to 44.5% Cu. Petrological work indicates that the surface copper mineralisation is typical of oxide zone assemblages associated with weathering of copper-sulphides at depth in carbonate-rich host rocks. In addition to high copper, highly anomalous cobalt, silver, palladium and platinum values were returned, indicative of a polymetallic mineralising system.
Western Star Prospect geological map and rock chip sample locations labelled with Cu assays
Copper mineralisation at the Bocrabee Prospect occurs over a strike length of about 800m, with widths varying from 30m to 80m, in a synclinal setting analogous to the nearby Nifty copper deposit operated by Metals X Limited. Despite two phases of drill-testing by previous explorers and perceived limitations of its size potential, the mineralisation remains open for extensions. It also establishes the potential of the area for additional Nifty-style sediment-hosted copper deposits.
The Xmas cobalt-manganese prospect, identified from historic lag and rock chip samples collected by CRA Exploration Pty Ltd, is a greenfields target with excellent exploration potential. Cobalt-manganese deposits are not as widespread as traditional cobalt sources, but have been recognised as a source of cobalt since the early 20th century.