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Chalk coast dynamics: implications for understanding rock coast evolution
journal contribution
posted on 2023-06-07, 17:12 authored by Cherith Moses, David RobinsonRock cliffs and shore platforms are linked components of the world's coastal zone. Understanding of the dynamics of their relationships has been hindered by the often imperceptible changes that occur within human time scales. The Cretaceous Chalk coasts of northwest Europe, and particularly those of southeast England, are among the most dynamic, and most intensively studied, cliffed rock coasts in the world. Perceptible changes to both cliffs and platforms have been measured on monthly, seasonal, annual and decadal time scales. Through a review of previously published data and the addition of data not previously published, average cliff retreat rates are calculated as 0.49 0.38 m y-1 and platform erosion rates 3.999 3.208 mm y-1. This paper highlights some of the interactions over time and space between process and measurement that continue to limit our understanding of the dynamics of rock coasts; in particular the link between rates of cliff retreat and platform erosion. It concludes by identifying fruitful areas for future research. Keywords: Rock coast, cliff, shore platform, Chalk, coastal erosion, weathering
History
Publication status
- Published
Journal
Earth Science ReviewsISSN
0012-8252Publisher
ElsevierExternal DOI
Issue
3-4Volume
109Page range
63-73Department affiliated with
- Geography Publications
Full text available
- No
Peer reviewed?
- Yes