By R. N. Mortimore, A. Duperret
Lots of the rocky coastlines world wide are topic to lively erosion techniques. as a result of transforming into threat to neighborhood groups from coastal cliff retreat, it is crucial to enquire the place, while and the way cliffs cave in. the result of those experiences are important for the planners and native gurus accountable for defense and entry to cliffs and seashores. This quantity makes a speciality of the coastal chalk cliffs of the English Channel, the place a multidisciplinary process has been used to appreciate lively coastal cliff recession. The booklet is geared up round 3 major subject matters: the geological components controlling cliff instability, the marine parameters influencing coastal erosion and using a few new instruments for possibility checks. This booklet should be of use to lecturers and pros engaged on rocky beaches, with an curiosity in sedimentary geology, stratigraphy, tectonics, geomorphology, engineering geology, coastal engineering and GIS. additionally to be had: development Stone Decay: From analysis to Conservation - designated book no 271 - ISBN 1862392188 Mapping in Engineering Geology (Key matters in Earth Sciences) - ISBN 1862391017 The Geological Society of LondonFounded in 1807, the Geological Society of London is the oldest geological society on the earth, and one of many biggest publishers within the Earth sciences.The Society publishes quite a lot of high quality peer-reviewed titles for teachers and pros operating within the geosciences, and enjoys an enviable foreign attractiveness for the standard of its work.The many parts during which we post in include:-Petroleum geology-Tectonics, structural geology and geodynamics-Stratigraphy, sedimentology and paleontology-Volcanology, magmatic reports and geochemistry-Remote sensing-History of geology-Regional geology courses
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Additional info for Coastal Chalk Cliff Instability (Geological Society Engineering Geology Special Publication No. 20)
In: MORTIMORE,R. N. & DUPERRET, A. (eds) Coastal Chalk Cliff Instability. Geological Society, London, Engineering Geology Special Publication, 20, 99-107. 31 MORTIMORE R. N. 1978. The stability of the Chalk cliffs between Newhaven and Brighton. Report for East Sussex County Engineers Department, Site Investigation Unit. MORTIMORE, R. N. 1983. The stratigraphy and sedimentation of the Turonian - Campanian in the Southern Province of England. Zitteliana, 10, 27-41. MORTIMORE, R. N. 1986. Stratigraphy of the Upper Cretaceous White Chalk of Sussex.
At Gun Gardens, where the basal Holywell Nodular Chalk Formation is present at the base of the cliff, major plane and wedge failures are common (Fig. 12). A conspicuous fault with a 10m displacement and intense fracture zone is the locus of regular cliff collapses in this part of the section. e. the entire cliff) are present in the New Pit Chalk Formation. However, blocks of chalk from the New Pit Formation are not generally found in the smallerscale collapses on the beach. g. Figs 13 & 14). During 2000-2001 there were regular collapses from the towers at the top of the cliff in the Seaford Chalk Formation.
The degraded chalk is succeeded upwards by a very irregular layer containing coarse flint gravel reworked into involutions (presumed to be caused by ice churning during the cold, wet episodes of the Quaternary). g. Fookes & Best 1969). Some of the cliff slope failures at Biding Gap are documented in the reports referenced in the R O C C Database. Collapses from the dry-valley altered chalk and Quaternary sedimentary fill are generally small (l-10m3; Magnitude 1-2), but continuous throughout the year, particularly in wet stormy weather.