Reaction phenomena between Karroo Dolerite and cave sandstone xenoliths in the Bird's River complex

Kenyon, A.K. (1976) Reaction phenomena between Karroo Dolerite and cave sandstone xenoliths in the Bird's River complex. Masters thesis, Rhodes University.

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Abstract

Mapping of the north-eastern portion of the Bird1s River Complex revealed that two large xenoliths composed of pyroclastic rocks and sandstone of the Cave Sandstone Stage have reacted with the dolerite. All the reaction phenomena normally associated with Karroo Dolerite are encountered. These are: (a) Metasomatism during the stage of iron enrichment of the dolerite with the production of a pyroxene-plagioclase metasomatic granophyre (b) Metasomatism during the stage of alkali enrichment of the dolerite with the production of a potassium feldspar adinole C c) Assimilation 'vi th the production of contaminated doleri tes Cd) Fusion 'vi th the production of glassy rocks including buchi tes (e) The production of rheomorphic veins

Item Type:Thesis (Masters)
Uncontrolled Keywords:Volcanic ash, Igneous rock, Sandstone, Karroo dolerite
Subjects:G Geography. Anthropology. Recreation > GB Physical geography
Divisions:Faculty > Faculty of Science > Geology
ID Code:2618
Deposited By: Mrs Carol Perold
Deposited On:16 Apr 2012 14:24
Last Modified:16 Apr 2012 14:24
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