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Reconstructing the pattern and depth of flow onshore in a palaeotsunami from associated deposits

Smith, D.E. and Foster, Ian D.L. and Long, D. and Shi, S. (2007) Reconstructing the pattern and depth of flow onshore in a palaeotsunami from associated deposits. Sedimentary Geology, 200 (3-4). pp. 362-371. ISSN 0037-0738

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Official URL: http://dx.doi.org/10.1016/j.sedgeo.2007.01.014

Abstract

The widespread sheets of fine particulate sediment frequently deposited by tsunami constitute valuable evidence from which to reconstruct tsunami inundation. This is illustrated with evidence from three sites near Montrose, in eastern Scotland, U.K., where a horizon of mainly sand, laid down during the Holocene Storegga Slide palaeotsunami of circa 8000 BP is examined. The horizon is remarkably consistent in its distribution, morphology, stratigraphy, and particle size characteristics. These properties allow inferences to be made on the nature of tsunami flow onshore and run-up. It is suggested that estimates can be made of the possible depth of water involved from the characteristics of the sediment, and thus of the extent of inundation involved in the tsunami at these sites.

Item Type:Article
Research Community:University of Westminster > Life Sciences, School of
ID Code:6075
Deposited On:19 Feb 2009 15:27
Last Modified:16 Dec 2009 12:30

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