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The ‘Precambrian’ in Cambria

Published online by Cambridge University Press:  01 May 2009

J. Challinor
J. Challinor
Affiliation:
Broncastell, Capel Bangor, Nr Aberystwyth, Wales
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Summary

The history of investigation of the rocks at present classed as Precambrian in the type region of the Cambrian system in the north-west corner of wales (Cambria), where that system was first named and its lower limit locally defined, is reviewed. The Arvonian volcanic series was originally included in the Cambrian System, the Monian metamorphic group remaining as Precambrian.

Type
Articles
Information
Geological Magazine , Volume 113 , Issue 5 , September 1976 , pp. 449 - 456
Copyright
Copyright © Cambridge University Press 1976

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