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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/4242

Title: Multi-proxy evidence for trans-Pacific tsunamis in the Hawai'ian Islands
Authors: Chagúe-Goff, C
Goff, J
Nichol, SL
Dudley, W
Zawadzki, A
Bennett, JW
Mooney, SD
Fierro, D
Heijnis, H
Dominey-Howes, D
Courtney, C
Keywords: TSUNAMIS
PALYNOLOGY
PALEONTOLOGY
POLLEN
DEPOSITS
SEDIMENTS
Issue Date: 1-Mar-2012
Publisher: ELSEVIER
Citation: Chagué-Goffa, C., Goffa, J., Nicholc, S. L., Dudleyd, W., Zawadzkib, A., Bennettb, J. W., Mooneye, S. D., Fierrob, D., Heijnisb, H., Dominey-Howesa, D., Courtney, C. (2012). Multi-proxy evidence for trans-Pacific tsunamis in the Hawai'ian Islands. Marine Geology, 299-302, (77-89).
Abstract: The origin of two sand layers buried in Pololū wetland, on the northeast coast of the island of Hawai'i, was investigated using a multi-proxy approach, including radiometric dating, sedimentology, geochemistry, micropalaeontology, palynology and historical records. Based on 210Pb, 137Cs and pollen data, the lower sand unit extending 250 to 350 m inland is attributed to the 1946 Aleutian tsunami, while the upper sand unit was laid down by the 1957 Aleutian tsunami. Chronological information does not appear to support any link between these deposits and historical storm events. Furthermore, sedimentological, geochemical, diatom and pollen results suggest deposition of marine and near-beach sediments under high energy conditions typically associated with tsunami inundation. This work presents the first conclusive sedimentary evidence for distantly-generated tsunamis on the Hawai'ian Islands, opening the way for more comprehensive historical and palaeotsunami studies. Indeed, a brief review of archaeological data suggests that the Hawai'ian coast may have experienced similar large magnitude events in the past, from both local and distant sources. Copyright © 2012 Elsevier Inc. All rights reserved.
URI: http://dx.doi.org/10.1016/j.margeo.2012.010
http://apo.ansto.gov.au/dspace/handle/10238/4242
ISSN: 0025-3227
Appears in Collections:Journal Articles

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