Mobilization of gold as a polymetallic melt during pelite anatexis at the Challenger deposit, South Australia: A metamorphosed archean gold deposit

Tomkins, Andrew; Mavrogenes, John

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Mobilization of gold as a polymetallic melt during pelite anatexis at the Challenger deposit, South Australia: A metamorphosed archean gold deposit

Date

2002

Authors

Tomkins, Andrew

Mavrogenes, John

Publisher

Economic Geology Publishing Company

Abstract

The Challenger gold deposit in South Australia is hosted by pelitic migmatites that underwent peak metamorphism at ∼7.5 ± 1.5 kbars and at least 800°C. Nd model ages suggest a protolith age of ∼2900 Ma. Zircon U-Pb and garnet Sm-Nd dating indicates