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Geochronology of the Nchanga Granite, and constraints on the maximum age of the Katanga Supergroup, Zambian Copperbelt

Armstrong, Richard; Master, S; Robb, L

Description

The age of the Neoproterozoic Katanga Supergroup, which hosts the stratiform Cu-Co deposits of the Central African Copperbelt, has not been well constrained. The Nchanga Granite, the youngest pre-Katangan intrusion in the Copperbelt basement, is nonconformably overlain by sedimentary rocks of the Katanga Supergroup, a relationship that is well exposed in the open pit at Nchanga Mine, Zambia. Previous attempts at dating the Nchanga Granite using the K-Ar and Rb-Sr systems have given only younger...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
URI: http://hdl.handle.net/1885/79095
Source: Journal of African Earth Sciences
DOI: 10.1016/j.jafrearsci.2005.08.012

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