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Recognizing hydrothermal alteration through a granulite facies metamorphic overprint at the challenger Au deposit, South Australia

McFarlane, Christopher; Mavrogenes, John; Tomkins, Andrew

Description

The Challenger Gold Mine, South Australia, is hosted in granulite-facies migmatitic gneisses. Lack of hydrous alteration minerals, evidence for remobilization of Au-rich sulfide melts, and intense stretching of the ore package parallel to the regional gneissic fabric all point to a pre-metamorphic mineralization event. A combination of textural, mineralogical, and lithogeochemical criteria have been used to recognize the effects of partial melting during high-grade metamorphism and mass changes...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
URI: http://hdl.handle.net/1885/37896
Source: Chemical Geology
DOI: 10.1016/j.chemgeo.2007.05.010

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