Impact of 2004 Tsunami on Seafloor Morphology and Offshore Sediments, Pakarang Cape, Thailand.

Feldens, P., Schwarzer, Klaus, Szczucinski, W., Stattegger, Karl, Sakuna, D. and Somgpongchaiykul, P. (2009) Impact of 2004 Tsunami on Seafloor Morphology and Offshore Sediments, Pakarang Cape, Thailand. Polish Journal of Environmental Studies, 18 (1). pp. 63-68.

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Abstract

Study documents seafloor morphology and sediments based oil multibeam, side-scan sonar and boomer surveys, as well as sediment samples taken on the inner to mid shelf of the Andaman Sea after the 2004 Indian Ocean tsunami. Preservation of submarine relief in former underwater mining areas points to limited impact of the tsunami, while channel structures parallel to the observed tsunami backwash indicate a possible higher impact. Therefore, the tsunami impact seems to be focused on some areas. The impact was probably most effective during the backwash, when stiff mud deposits containing grass, wood fragments and shells were transported by high density backwash flows, Moreover, several boulders, which might have been deposited during the tsunami backwash flow, were found in the channels in front of Pakarang Cape.

Document Type: Article
Keywords: 2004 indian ocean tsunamiseafloor mapping tsunami backwash inner continental shelf andaman sea indian-ocean tsunami coastal zone sri-lanka deposits indonesia earthquake example erosion record
Research affiliation: Kiel University
Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
ISSN: 1230-1485
Projects: Future Ocean
Date Deposited: 11 Feb 2011 12:15
Last Modified: 23 Sep 2019 20:53
URI: http://oceanrep.geomar.de/id/eprint/9376

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