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The Later Igneous Rocks of Arvon

Published online by Cambridge University Press:  01 May 2009

Edward Greenly
Edward Greenly
Affiliation:
The Palaeozoic Intrusions
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Extract

As in Anglesey, these are numerous, dykes being there more numerous than sills. But petrologically there is far less variety, all but one of them being basic. There are no picrites, no coarse dolerites, no rhyolites, no lamprophyres.

Type
Articles
Information
Geological Magazine , Volume 79 , Issue 6 , December 1942 , pp. 328 - 331
Copyright
Copyright © Cambridge University Press 1942

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