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The Torridonian Succession of the Isle of Rhum

Published online by Cambridge University Press:  01 May 2009

G. P. Black  and
W. Welsh
G. P. Black
Affiliation:
The Nature Conservancy, 19 Belgrave Square, London, S.W. 1.
W. Welsh
Affiliation:
Grant Institute Of Geology, West Mains Road, Edinburgh, 9.
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Abstract

The Torridonian rocks of Rhum are divided into five sub-divisions on lithological grounds and the succession is found to be closely comparable with that of Skye. On the basis of the comparison, four sub-divisions, totalling 8,500 feet in thickness, are allocated to the Diabaig Group while the 6,000 feet of strata belonging to the fifth and highest sub-division are allocated to the Applecross Group. The sediments of the Diabaig Group are now seen to form a great wedge thickening and coarsening consistently from Gairloch south-south-westwards to Rhum; a phenomenon obscured by the previously held correlation of the Rhum Torridonian with that of Skye and the Mainland.

Type
Articles
Information
Geological Magazine , Volume 98 , Issue 4 , August 1961 , pp. 265 - 276
Copyright
Copyright © Cambridge University Press 1961

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References

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