EDWARDS, R. A. & GALLOIS, R. W. 2004. Geology of the Sidmouth district – a brief explanation of the geological map. Sheet Explanation of the British Geological Survey. 1:50 000 Sheets 326 and 340 Sidmouth (England and Wales). 30 pp. Keyworth: British Geological Survey. Price £9.00 (paperback). ISBN 0 85272 477 2

Abstract

The Sidmouth region lies in the western part of the Dorset and East Devon Coast World Heritage Site at the western edge of the Wessex Basin. Although the map extends inland, interest is concentrated on the spectacular coast, whose cliffs form a readily accessible E–W cross-section. The booklet commences with Permian rocks which underlie the whole area and are possibly exposed at outcrop, but the dating at the Permo-Trias boundary is difficult. The cliffs in the west show the non-marine red beds of the Triassic Sherwood Sandstone and Mercia Mudstone groups. They are followed …