The Mount Gunson Project tenement package is being explored for three separate types of mineralisation: • stratiform copper mineralisation similar to that of the world-class Central African Copper Belt and White Pine deposit in Michigan. This...
The Mount Gunson Project tenement package is being explored for three separate types of mineralisation: • stratiform copper mineralisation similar to that of the world-class Central African Copper Belt and White Pine deposit in Michigan. This style of mineralisation would be hosted in flat-lying sedimentary units of the Adelaidean sequence, with copper metal being sourced from the underlying Pandurra Formation redbeds or even from zones of extensive alteration and leaching in the pre-Pandurra basement. The deposits at Windabout and at MG 14, hosted in dolomitic black shales of the Tapley Hill Formation in each case, have similarities to this style of mineralisation. The mineralisation mined at the Cattlegrid deposit, while differing in detail from the classic stratiform copper models, probably represents a local variant of this type of deposit, related to a redox boundary and a zone of structural preparation. • base-metal and gold mineralisation within brecciated and altered lithologies in the pre- Pandurra basement, as seen at the world-class Olympic Dam deposit. Variants of this style of mineralisation are seen elsewhere on the Stuart Shelf, and the tectonic and structural setting of the Mount Gunson region is favourable for repetitions of the Olympic Dam setting. • gold mineralisation of any of the types being explored in the central and western Gawler Craton. No on-ground field work was conducted by the project JV partners anywhere within the four now partially relinquished portions of the subject licences, although these areas have been assessed as part of various desktop reviews and target generation programmes that were undertaken by the partners. The only activity of relevance was the over-flying during October 2010 of the relinquished areas of ELs 4460 and 4187/5333 by a part of the Woomera detailed airborne magnetic/radiometric survey acquired by Aerosystems for Xstrata Copper Exploration.
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