Rhyolitic ignimbrites of the Cape Granite suite, southwestern Cape province, South Africa
Date
2000
Authors
Scheepers R.
Nortje A.N.
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Abstract
Based on textural and geochemical evidence, the existence of Late Precambrian rhyolitic volcanism related to the Cape Granite Suite is illustrated. Recrystallised rhyolitic ignimbrites represent the volcanic phase of a subvolcanic to volcanic sequence composed of rhyodacite to rhyolitic magma. Textural features including fiamme, pumice fragments and glass shards provide unequivocal evidence for the volcanic origin of these rocks. © 2001 Published by Elsevier Science Limited.
Description
Keywords
geochemistry, ignimbrite, Proterozoic, rhyolite, texture, volcanism, South Africa
Citation
Journal of African Earth Sciences
31
04-Mar
31
04-Mar