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Minor Acid Intrusions and Dykes of Lamlash—Whiting Bay Region, Arran

Published online by Cambridge University Press:  01 May 2009

M. Srirama Rao
M. Srirama Rao
Affiliation:
Government Mining Polytechnic, Chhindwara, India.
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Abstract

Thin sills and dykes of pitchstone and felsite and dykes of crinanite, olivine-dolerite, tholeiites of different types, quartz-dolerite, andesite, craignurite-pitchstone, felsite and porphyry are described and the importance of contact and deep-seated hybridization of two magmas of contrasting basic and acid composition in their formation established. Among the dykes, the sequence of intrusion is surmised to be as follows: basic, sub-basic, intermediate, acidic, and, again, basic.

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Articles
Information
Geological Magazine , Volume 96 , Issue 3 , June 1959 , pp. 237 - 246
Copyright
Copyright © Cambridge University Press 1959

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