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The Peak Trough – a major control on the geology of the North Yorkshire coast

Published online by Cambridge University Press:  01 May 2009

J. Milsom  and
P. F. Rawson
J. Milsom
Affiliation:
Department of Geological Sciences, University College London, Gower Street, London WCIE 6BT, U.K.
P. F. Rawson
Affiliation:
Department of Geological Sciences, University College London, Gower Street, London WCIE 6BT, U.K.
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Abstract

Although the Mesozoic sediments of the Cleveland Basin (North Yorkshire) have generally not been strongly faulted, several approximately N–S trending faults have been identified along the coast. New seismic data from adjacent coastal waters has allowed the offshore extension to the fault system to be examined for the first time. The coastal faults from Peak (Ravenscar) to Red Cliff (Cayton Bay) are shown to form part of a linked system defining a narrow graben only some 5 km wide, the Peak Trough. Faulting has been complex, with decollement levels apparently developed in weak layers at various horizons in the Triassic and Permian strata: fault geometries and regional considerations suggest that extension has been dominant. Movement occurred intermittently from Triassic to latest Cretaceous or early Tertiary times.

Type
Articles
Information
Geological Magazine , Volume 126 , Issue 6 , November 1989 , pp. 699 - 705
Copyright
Copyright © Cambridge University Press 1989

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