West, Ian. M. 2012. Eype Mouth: Geology of the Wessex Coast (Jurassic Coast, Dorset and Devon World Heritage Site). Geological field description. http://www.southampton.ac.uk/~imw/Eype.htm. Revised version - 26th August 2012.
Eype's Mouth West to Thorncombe Beacon

Ian West,

Romsey, Hampshire
and Visiting Scientist at:
School of Ocean and Earth Science ,
Southampton University,

Webpage hosted by courtesy of iSolutions, Southampton University
Aerial photographs by courtesy of The Channel Coastal Observatory , National Oceanography Centre, Southampton.
Website archived at the British Library

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View westward to Eype Mouth and Thorncombe Beacon from West Cliff, Bridport, Dorset

Eype Clay and blocks of Starfish Bed, 2000

West Cliff or Watton Cliff, near Bridport, 2000

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West Dorset cliff-sections, Seaton to Burton Mere, Dorset

West Dorset cliff sections - general

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View across Fault Corner towards Eype Mouth, Dorset

View westward to Eype Mouth and Thorncombe Beacon from West Cliff, Bridport, Dorset

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I am very grateful to Alan Holiday who first informed me about this mudslide and kindly took photographs. I very much appreciate the further photographs of the mudslide, including one from the sea taken by Martin Cox. I thank various people who have been in the field with me at this locality.

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British Geological Survey (BGS). (Compiler Wood, M.A.) 2011. Geology of South Dorset and South-East Devon and its World Heritage Coast.

Special Memoir for 1:50,000 geological sheets 328 Dorchester, 342 West Fleet and Weymouth and 342/343 Swanage and parts of sheets 326/340 Sidmouth, 327 Bridport, 329 Bournemouth and 330 Newton Abbott. Compiled by M.A. Woods. By Barton, C.M., Woods, M.A., Bristow, C.R., Newell, A.J., Westhead, R.K., Evans, D.J., Kirby G.A., and Warrington, G. Contributors: Biostratigraphy - J.B. Riding; Stratigraphy - E.C. Freshney; Economic Geology - D.E. Highley and G.K. Lott; Engineering Geology - A. Forster and A. Gibson. British Geological Survey, Keyworth, Nottingham, 2011. 161 pp. This is the new version of the Geological Survey Memoir for the Dorset Coast etc. and replaces Arkell (1947) and the earlier memoir by Strahan (1898). It covers a wider area than these old memoirs, though, and includes all of "Jurassic Coast", UNESCO World Heritage Coast. It is a key reference work. Available from BGS Online Bookshop at 24 pounds stirling (in Jan. 2012).
Day , E.C.H. 1863. On the Middle and Upper Lias of the Dorset coast. Quarterly Journal of the Geological Society, London, 19, 278-297.
Howarth , M.K. 1957. On the Middle Lias of the Dorset coast. Quarterly Journal of the Geological Society, London, 113, 185-204.
Palmer , C.P. 1972. Revision of the zonal classification of the Lower Lias of the Dorset coast. Proceedings of the Dorset Natural History and Archaeological Society, 93, 102-116.

Palmer, C.P. 1966. The fauna of Day's Shell Bed in the Middle Lias of the Dorset coast. Proceedings of the Dorset Natural History and Archaeological Society, 87, 69-80.

Palmer, C.P. 2003. Carinopsis batei: a new bivalve mollusc from the Middle Lias (Lower Jurassic) of the Dorset coast, England. Proceedings of the Dorset Natural History and Archaeological Society, 125, 119-123. By Charles Philip Palmer of the Natural History Museum, London. Summary: A new genus of heterodont bivalve mollusc is described and named Carinopsis. It is assigned to geographical, and exact stratigraphical positions; and classified in the subfamily Opinae, pending better preserved material. Biographical conclusions are drawn. [A small, unusual, heterodont mollusc from Day's Shell Bed about 0.9m below the Starfish Bed of Eype Mouth and Seatown.]
Wilson, V. , Welch, F.B.A., Robbie, J.A. and Green, G.W. 1958. Geology of the Country Around Bridport and Yeovil (Explanations of Sheets 327 and 312). 239pp. With contributions on The Purbeck Beds by F.W. Anderson, D.Sc.; Palaeontology by R.V. Melville, M.Sc.; and Ground Water by S. Buchan, B.Sc., Ph.D. Her Majesty's Stationery Office, London. [The map and area considered has an eastern limit about 3 miles west of Dorchester, and a western limit at Charmouth. It does not quite include Lyme Regis.]

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Copyright © 2012 Ian West, Catherine West, Tonya West and Joanna Bentley. All rights reserved. This is a purely academic website and images and text may not be copied for publication or for use on other webpages or for any commercial activity. A reasonable number of images and some text may be used for non-commercial academic purposes, including field trip handouts, lectures, student projects, dissertations etc, providing source is acknowledged.

Diagrams or photographs from this website cannot be published in books for sale without specific permission; publishers or authors should give the file name of an image requested for a copyright clearance check.

Disclaimer: Geological fieldwork involves some level of risk, which can be reduced by knowledge, experience and appropriate safety precautions. Persons undertaking field work should assess the risk, as far as possible, in accordance with weather, conditions on the day and the type of persons involved. In providing field guides on the Internet no person is advised here to undertake geological field work in any way that might involve them in unreasonable risk from cliffs, ledges, rocks, sea or other causes. Not all places need be visited and the descriptions and photographs here can be used as an alternative to visiting. Individuals and leaders should take appropriate safety precautions, and in bad conditions be prepared to cancell part or all of the field trip if necessary. Permission should be sought for entry into private land and no damage should take place. Attention should be paid to weather warnings, local warnings and danger signs. No liability for death, injury, damage to, or loss of property in connection with a field trip is accepted by providing these websites of geological information. Discussion of geological and geomorphological features, coast erosion, coastal retreat, storm surges etc are given here for academic and educational purposes only. They are not intended for assessment of risk to property or to life. No liability is accepted if this website is used beyond its academic purposes in attempting to determine measures of risk to life or property.

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Dr Ian West, author of these webpages

Webpage - written and produced by:

Ian West, M.Sc. Ph.D. F.G.S.


at his private address, Romsey, Hampshire, kindly supported by Southampton University,and web-hosted by courtesy of iSolutions of Southampton University. The website does not necessarily represent the views of Southampton University. The website is written privately from home in Romsey, unfunded and with no staff other than the author, but generously and freely published by Southampton University. Field trips shown in photographs do not necessarily have any connection with Southampton University and may have been private or have been run by various organisations.