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LIMA U-Pb ages link lithospheric mantle metasomatism to Karoo magmatism beneath the Kimberley region, South Africa

Giuliani, Andrea; Phillips, David; Maas, Roland; Woodhead, Jonathan; Kendrick, Mark; Greig, Alan; Armstrong, Richard; Chew, D.; Kamenetsky, Vadim S; Fiorentini, Marco


The Karoo igneous rocks (174-185 Ma) of southern Africa represent one of the largest continental flood basalt provinces on Earth. Available evidence indicates that Karoo magmas either originated in the asthenosphere and were extensively modified by interaction with the lithospheric mantle prior to emplacement in the upper crust; or were produced by partial melting of enriched mantle lithosphere. However, no direct evidence of interaction by Karoo melts (or their precursors) with lithospheric...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2014.05.044


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