Expanding the proxy toolkit to help identify past events: Lessons from the 2004 Indian Ocean Tsunami and the 2009 South Pacific Tsunami

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dc.contributor.authorChagué-Goff, Cen_AU
dc.contributor.authorSchneider, JLen_AU
dc.contributor.authorGoff, JRen_AU
dc.contributor.authorDominey-Howes, Den_AU
dc.contributor.authorStrotz, Len_AU
dc.date.accessioned2011-12-13T03:05:27Zen_AU
dc.date.available2011-12-13T03:05:27Zen_AU
dc.date.issued2011-07-01en_AU
dc.date.statistics2011-12-13en_AU
dc.description.abstractSome of the proxies used to identify palaeotsunamis are reviewed in light of new findings following the 2004 Indian Ocean Tsunami and the 2009 South Pacific Tsunami, and a revised toolkit provided. The new application of anisotropy of magnetic susceptibility (AMS) to the study of tsunami deposits and its usefulness to determine the hydrodynamic conditions during the emplacement of tsunami sequences, together with data from grain size analysis, are presented. The value of chemical proxies as indicators of saltwater inundation, associated marine shell and/or coral, high-energy depositional environment, and possible contamination, is demonstrated and issues of preservation addressed. We also provide new findings from detailed studies of heavy minerals. New information gathered during the UNESCO - International Oceanographic Commission (IOC) International Tsunami Survey of fine onshore sediments following the 2009 South Pacific Tsunami is presented, and includes grain size, chemical, diatom and foraminifera data. The tsunami deposit varied, ranging from fining-upward sand layers to thin sand layers overlain by a thick layer of organic debris and/or a mud cap. Grain size characteristics, chemical data and microfossil assemblages provide evidence for marine inundation from near shore, and changes in flow dynamics during the tsunami. (C) 2011 Elsevier B.V.en_AU
dc.identifier.citationChague-Goff, C., Schneider, J.L., Goff, J.R., Dominey-Howes, D., Strotz, L. (2011). Expanding the proxy toolkit to help identify past events - Lessons from the 2004 Indian Ocean Tsunami and the 2009 South Pacific Tsunami. Earth-Science Reviews, 107(1), 107-122. doi:10.1016/j.earscirev.2011.03.007en_AU
dc.identifier.govdoc3898en_AU
dc.identifier.issn0012-8252en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleEarth-Science Reviewsen_AU
dc.identifier.pagination107-122en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.earscirev.2011.03.007en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3937en_AU
dc.identifier.volume107en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectIndian Oceanen_AU
dc.subjectTsunamisen_AU
dc.subjectPacific Oceanen_AU
dc.subjectMineralsen_AU
dc.subjectGeologyen_AU
dc.subjectClimatic changeen_AU
dc.titleExpanding the proxy toolkit to help identify past events: Lessons from the 2004 Indian Ocean Tsunami and the 2009 South Pacific Tsunamien_AU
dc.typeJournal Articleen_AU
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