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An Occurrence of Regionally Metamorphosed Pre-Cambrian Schists in South-West Pembrokeshire

Published online by Cambridge University Press:  01 May 2009

C. W. Claxton
Affiliation:
Department of Geology, The University, Hull.

Abstract

Recent research work has revealed an area of regionally metamorphosed Pre-Cambrian schists (previously undescribed) in south-west Pembrokeshire. The name “Dutch Gin Schists” is proposed for this newly described group of rocks. The Johnston Plutonic Series (Dimetian) are seen to be intruded into these schists, and the nature of the intrusive contact is described. The structure and petrology of the schists, and the nature of diorites adjacent to the contact and that seen elsewhere in the igneous mass is compared, and a suggestion made regarding the age of the foliation. A comparison is made with the Pre-Cambrian metamorphosed rocks of Malvern, Shropshire, and Anglesey.

Type
Articles
Copyright
Copyright © Cambridge University Press 1963

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References

REFERENCES

Callaway, C., 1884. A New Metamorphic area in Shropshire. Geol. Mag., 21, 362–6.Google Scholar
Greenly, E., 1923. The Succession and Metamorphism in the Mona Complex. Quart. J. geol. Soc. Lond., 79, p. 334.CrossRefGoogle Scholar
Greenly, E., 1930. Foliation and its Relation to Folding in the Mona Complex at Rhoscolyn. Quart. J. geol. Soc. Lond., 86, p. 169.Google Scholar
Groom, T. T., 1910. The Malvern and Abberley Hills and the Ledbury District. Geology in the Field, Pt. 4, 698738.Google Scholar
Harker, A., 1939. Metamorphism. Methuen and Co. Ltd., London.Google Scholar
Jones, O. T., and others, 1916. The Geology of the South Wales Coalfield. Pt. 12. The Country around Milford. Mem. geol. Surv. U.K.Google Scholar
Pocock, R. W., and Whitehead, T. H., 1948. The Welsh Borderland. Brit. reg. Geol.Google Scholar
Pringle, J., and George, T. N., 1948. South Wales. Brit. reg. Geol.Google Scholar
Smith, B., and George, T. N., 1948. North Wales. Brit. reg. Geol.Google Scholar
Turner, F. J., and Verhoogen, J., 1960. Igneous and Metamorphic Petrology. McGraw Hill, New York.Google Scholar