- 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
- 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
- Hits: 905
- Visitors: 1001
- Downloads: 158
Thumbnail | File | Description | Size | Format | |||
---|---|---|---|---|---|---|---|
View Details Download | SOURCE1 | The chemistry and petrogenesis of igneous rocks of the Karoo central area, southern Africa.pdf | 3 MB | Adobe Acrobat PDF | View Details Download |