New insights into intrusion-related gold-copper systems in the Tasmanides

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Summary

Intrusion-related gold-rich systems occur throughout eastern Australian.

The last 20 years has seen a large increase in our understanding of the relationships between mineralisation and associated felsic intrusions, in particular, the strong relationship between the oxidation state and degree of compositional evolution of felsic magmas, and potential associated commodity types.

This paper reviews recent developments in igneous metallogeny, in particular, with regard to intrusion-related Cu-Au and Au mineralisation, to show that eastern Australia is still prospective for granite-related gold systems.

Major potential exists, both under cover and as blind deposits.

To aid in discovery, Geoscience Australia is synthesising metallogenic data for both Palaeozoic intrusions of eastern Australia, and local country rock units.

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A presentation given at Mining 2005, Brisbane, 26 October 2005, 'New Insights into Intrusion-related Gold-Copper Systems in the Tasmanides' by Dave Champion and Phil Blevin.[PDF 2.1 Mb]

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Further Information

For more information, contact Dave Champion at Geoscience Australia by email on dave.champion@ga.gov.au