Intrusive quartz latites in the Blaenau Ffestiniog area, Merioneth
- 1 January 1965
- journal article
- research article
- Published by Wiley in Geological Journal
- Vol. 4 (2) , 247-256
- https://doi.org/10.1002/gj.3350040202
Abstract
Certain flow‐banded and fragmental rocks amongst the Moelwyn Volcanic Series are shown to be of intrusive origin, although at one time they were believed to be extrusive lavas, ashes and agglomerates. Thus the thickness and extent of the volcanic rocks are greatly reduced. New palaeontological evidence shows that part of the Moelwyn Volcanic Series is Caradocian.Keywords
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