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Sedimentary records of coastal storm surges : evidence of the 1953 North Sea event.

Swindles, Graeme T. and Galloway, Jennifer M. and Macumber, Andrew L. and Croudace, Ian and Emery, Andy R. and Woulds, Clare and Bateman, Mark D. and Parry, Lauren and Jones, Julie M. and Selby, Katherine and Rushby, Greg T. and Baird, Andy J. and Woodroffe, Sarah A. and Barlow, Natasha L.M. (2018) 'Sedimentary records of coastal storm surges : evidence of the 1953 North Sea event.', Marine geology., 403 . pp. 262-270.

Abstract

The expression of storm events in the geological record is poorly understood; therefore, stratigraphic investigations of known events are needed. The 1953 North Sea storm surge was the largest natural disaster for countries bordering the southern North Sea during the twentieth century. We characterize the spatial distribution of a sand deposit from the 1953 storm surge in a salt marsh at Holkham, Norfolk (UK). Radionuclide measurements, core scanning X-ray fluorescence (Itrax), and particle size analyses, were used to date and characterise the deposit. The deposit occurs at the onset of detectable 137Cs - coeval with the first testing of nuclear weapons in the early 1950s. The sand layer is derived from material eroded from beach and dunes on the seaward side of the salt marsh. After the depositional event, accumulation of finer-grained silt and clay materials resumed. This work has important implications for understanding the responses of salt marshes to powerful storms and provides a near-modern analogue of storm surge events for calibration of extreme wave events in the geological record.

Item Type:Article
Full text:(AM) Accepted Manuscript
First Live Deposit - 26 June 2018
Available under License - Creative Commons Attribution.
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Full text:(VoR) Version of Record
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1016/j.margeo.2018.06.013
Publisher statement:© 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/
Record Created:26 Jun 2018 12:13
Last Modified:04 Jul 2018 10:44

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