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An Outline of the Geomorphology of Murrisk and North-West Galway

Published online by Cambridge University Press:  01 May 2009

J. F. Dewey  and
W. S. McKerrow
J. F. Dewey
Affiliation:
Department of Geology, The University, Manchester, 13.
W. S. McKerrow
Affiliation:
Department of Geology, University Museum, Oxford.
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Abstract

The denudation chronology of the mountainous district of south-west Mayo and north-west Galway is closely linked with drainage superimposition from a deformed Carboniferous cover. Small outcrops of basal Viséan sandstones and conglomerates, lying on bevelled summits and wide bevelled tablelands demonstrate unequivocally that the west Connaught summit level corresponds to the base of the Carboniferous. Uplift, to produce a pre-glacial divide, is believed to have occurred in Mid-Tertiary times. Upon the uplifted, faulted, and warped Carboniferous cover a consequent drainage was developed. Superimposition on to the Caledonian basement followed and during the Pleistocene considerable glacial modifications of the pre-glacial drainage pattern took place.

Type
Articles
Information
Geological Magazine , Volume 100 , Issue 3 , June 1963 , pp. 260 - 275
Copyright
Copyright © Cambridge University Press 1963

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References

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