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Tsunamis: Geology, Hazards and Risks

Geological Society, London, Special Publications

Tsunamis: Geology, Hazards and Risks
CONTAINS OPEN ACCESS

Author(s)

The Geological Society of London

Volume

456

DOI:

https://doi.org/10.1144/SP456

Copyright:

Gold Open Access: This article is published under the terms of the CC-BY 3.0 license.

ISBN electronic:

9781786203373

ISBN print:

9781786203182

Publication date:

January 01, 2018

Book Chapter

The application of microtextural and heavy mineral analysis to discriminate between storm and tsunami deposits

Author(s)

Pedro J. M. Costa

Pedro J. M. Costa

¹Instituto Dom Luiz and Departamento de Geologia, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal

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G. Gelfenbaum

²United States Geological Survey, Pacific Coastal and Marine Science Center, 400 Natural Bridges Drive, Santa Cruz, CA 95060, USA

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S. Dawson

³Department of Geography, University of Dundee, Tower Building, Nethergate, Dundee DD1 4HN, UK

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S. La Selle

²United States Geological Survey, Pacific Coastal and Marine Science Center, 400 Natural Bridges Drive, Santa Cruz, CA 95060, USA

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F. Milne

³Department of Geography, University of Dundee, Tower Building, Nethergate, Dundee DD1 4HN, UK

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J. Cascalho

¹Instituto Dom Luiz and Departamento de Geologia, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal⁴Museu Nacional de História Natural e da Ciência (MUHNAC-UL), Rua da Escola Politécnica 56/58, 1250-102, Lisboa, Portugal

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C. Ponte Lira

¹Instituto Dom Luiz and Departamento de Geologia, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal

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C. Andrade

¹Instituto Dom Luiz and Departamento de Geologia, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal

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M. C. Freitas

¹Instituto Dom Luiz and Departamento de Geologia, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal

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B. Jaffe

²United States Geological Survey, Pacific Coastal and Marine Science Center, 400 Natural Bridges Drive, Santa Cruz, CA 95060, USA

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Doi:

https://doi.org/10.1144/SP456.7

Published:

January 01, 2018

Abstract

Recent work has applied microtextural and heavy mineral analyses to sandy storm and tsunami deposits from Portugal, Scotland, Indonesia and the USA. We looked at the interpretation of microtextural imagery (scanning electron microscopy) of quartz grains and heavy mineral compositions. We consider inundation events of different chronologies and sources (the AD 1755 Lisbon and 2004 Indian Ocean tsunamis, the Great Storm of 11 January 2005 in Scotland, and Hurricane Sandy in 2012) that affected contrasting coastal and hinterland settings with different regional oceanographic conditions. Storm and tsunami deposits were examined along with potential source sediments (alluvial, beach, dune and...

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