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Introduction to the Welsh Basin thematic issue

Published online by Cambridge University Press:  01 May 2009

N. H. Woodcock  and
C. J. N. Fletcher
N. H. Woodcock
Affiliation:
Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, U.K.
C. J. N. Fletcher
Affiliation:
British Geological Survey, Bryn Eithyn Hall, Llanfarian, Aberystwyth, Dyfed SY23 4BY, U.K.
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Extract

The Welsh Basin was an area of enhanced Early Palaeozoic subsidence on the northwestern margin of the Eastern Avalonian microcontinent. It is bordered to the southeast by the Midland Platform and to the northwest by the smaller Irish Sea Platform (Fig. 1). The sedimentary rocks of the basin and its flanking platforms range from Lower Cambrian through Lower Devonian. The sequence is dominantly marine, with abundant volcanics in the Ordovician. A basinwide change to non-marine facies is preserved in the Lower Devonian, heralding basin inversion and the culminating Acadian (late Caledonian) Orogeny.

Type
Articles
Information
Geological Magazine , Volume 129 , Issue 5 , September 1992 , pp. 513 - 514
Copyright
Copyright © Cambridge University Press 1992

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References

Fitches, W. R. & Woodcock, N. H. 1987. Sedimentation and tectonics in the Welsh Basin: Introduction. Geological Journal 22, 1–5.Google Scholar