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
Creator: Marsh, Julian S
Date Issued: 1984
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
Format: pdf
Language: English
Relation: Special Publication Geological Society South Africa
Relation: 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.
Relation: Special Publication Geological Society South Africa number 13 26 67 1984 0367-5335
Rights: Authors
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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