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Salt-related structures on the Bristol Channel coast, Somerset (UK)

By
James Trude
James Trude
Hess Corporation, 1501 McKinney, Houston, TX 77010, USA
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Rod Graham
Rod Graham
Hess Ltd., The Adelphi Building, 1-11 John Adam St., London WC2N 6AG, UK
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Robin Pilcher
Robin Pilcher
Hess Corporation, 1501 McKinney, Houston, TX 77010, USA
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Published:
January 01, 2012

Abstract

This paper presents a new interpretation of well-known outcrops on the south coast of the Bristol Channel at Watchet in southern England. It is prompted by our recent experience of high-quality three-dimensional seismic datasets from areas such as the Gulf of Mexico and Brazil which are dominated by salt tectonics. Previous structural interpretations of the Watchet outcrops were explained in terms of extension, inversion and strike-slip tectonics. We suggest that some of the structures in the area are not easily explained by any of these mechanisms, but that they are collapse structures associated with salt withdrawal and imply salt diapirism during the Late Triassic and Early Jurassic.

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Contents

Geological Society, London, Special Publications

Salt Tectonics, Sediments and Prospectivity

G. I. Alsop
G. I. Alsop
University of Aberdeen, UK
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S. G. Archer
S. G. Archer
University of Aberdeen, UK
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A. J. Hartley
A. J. Hartley
University of Aberdeen, UK
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N. T. Grant
N. T. Grant
ConocoPhillips UK Ltd, Aberdeen, UK
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R. Hodgkinson
R. Hodgkinson
Bowleven plc, Edinburgh, UK
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Geological Society of London
Volume
363
ISBN electronic:
9781862396111
Publication date:
January 01, 2012

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