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Ignimbrite flows from Rajula, Saurashtra, India

Published online by Cambridge University Press:  01 May 2009

T. Krishnamacharlu
T. Krishnamacharlu
Affiliation:
Centre of Advanced Study in GeologyUniversity of SagarSagar 470-003, M.P., India
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Summary

The paper records the occurrence of ignimbrite flows at Rajula, Amreli district of Saurashtra. Three different flows of ignimbrite representing a single genetic unit have been recognized. They consist of devitrified glass shards, pumice, salic and mafic minerals and unevenly distributed basic fragments. The shards and pumice are elongated along the flow direction of the rock giving eutaxitic foliation, while the basic fragments are drawn out in the direction of flow. The low content of soda in these ignimbrites is probably due to its loss during the hydration and devitrification of the glass.

Type
Articles
Information
Geological Magazine , Volume 111 , Issue 1 , January 1974 , pp. 49 - 54
Copyright
Copyright © Cambridge University Press 1974

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