The chemistry and petrogenesis of igneous rocks of the Karoo central area, southern Africa

Title: The chemistry and petrogenesis of igneous rocks of the Karoo central area, southern Africa
Creator: Eales, Hugh V, Marsh, Julian S
Date: 1984
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/133934
Identifier: vital:37042
Identifier: https://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetailamp;idt=6519911
Description: Outcrops of the Jurassic Karoo basalts and dolerites in central South Africa are remnants of an intracratonic continental igneous suite whose volume probably once exceeded 1.5 x 106 km³. Basic rocks with 6-8% MgO, 50-55% Si02 and Mg-number = 53-67 are overwhelmingly dominant in the Central area suite. Application of discriminant analysis to a data set of major and trace element analyses of the basic rocks confirms field and petrographic evidence that a number of compositionally distinct basalt magma types exist in the Central area.
Format: 41 pages, pdf
Language: English
Relation: Special Publication Geological Society South Africa, Marsh, J.S. and Eales, H.V., 1984. The chemistry and petrogenesis of igneous rocks of the Karoo central area, southern Africa. Spec. Publ. Geol. Soc. S. Afr., 13, pp. 26-67., Special Publication Geological Society South Africa number 13 26 67 1984 0367-5335
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Rights: Use of this resource is governed by the terms and conditions of the Author

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Marsh, Julian (Goonie)(Prof)

Eales, Hugh (Emeritus Prof)

RU Department of Geology

SDG 13. Climate Action

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