The Karoo triple junction questioned : evidence from Jurassic and Proterozoc 40Ar/39Ar ages and geochemistry of the giant Okavango dyke swarm (Botswana).

The Karoo triple junction questioned : evidence from Jurassic and Proterozoc 40Ar/39Ar ages and geochemistry of the giant Okavango dyke swarm (Botswana).

The lower Jurassic Karoo-Ferrar magmatism represents one of the most important Phanerozoic continental flood basalt (CFB) provinces. The Karoo CFB province is dominated by tholeiitic traps and apparently radiating giant dyke swarms covering altogether ca. 3 106 km2. This study focuses on the giant N...

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Bibliographic Details
Main Authors: Jourdan, Fred, Feraud, G., Bertrand, A., Kampunzu, A., Tshoso, G., LeGall, B., Tiercelin, J., Capiez, P.
Format: Journal Article
Published: Elsevier Science BV 2004
Subjects:
karoo
triple junction
geochemical discrimination
Online Access:http://hdl.handle.net/20.500.11937/39784

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