Geology of the Malin-Hebrides sea area

Geology of the Malin-Hebrides sea area

This report includes the sea areas of the Firth of Clyde, part of the North Channel, the Malin Sea, the Sea of the Hebrides and The Minch. The authors are Alan Fyfe, Dave Long and Dan Evans.

The Geology of the area : Precambrian and Early Palaeozoic metamorphic rocks that make up the surrounding land areas include Lewisian gneisses, the oldest rocks in the UK. Offshore these rocks often form a rough topography of ridges and highs. The ribbon of Cambro-Ordovician rocks that crops out from Loch Eribol to Skye are unproven offshore.
The most significant difference between the submarine geology and that of the surrounding landmass is that a large area offshore is underlain by Permian and Mesozoic rocks. A number of sedimentary basins form the lower-lying and generally smoother zones between ridges of older rock.
Parts of the west coast of Scotland were affected by vulcanicity in Tertiary times. The well-known basalts of Skye, Antrim and Mull have been traced offshore, where they form predominantly flat-topped plateau areas.

Author Fyfe, J.A.

ISBN 0118844946

Year Published 1993

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