Universität zu Köln

May, Simon Matthias ORCID: 0000-0001-6762-7500, Falvard, Simon, Norpoth, Maike, Pint, Anna, Brill, Dominik ORCID: 0000-0001-8637-4641, Engel, Max ORCID: 0000-0002-2271-4229, Scheffers, Anja ORCID: 0000-0002-9143-5389, Dierick, Manuel, Paris, Raphael ORCID: 0000-0003-4569-5187, Squire, Peter and Bruckner, Helmut (2016). A mid-Holocene candidate tsunami deposit from the NW Cape (Western Australia). Sediment. Geol., 332. S. 40 - 51. AMSTERDAM: ELSEVIER. ISSN 1879-0968

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Abstract

Although extreme-wave events are frequent along the northwestern coast of Western Australia and tsunamis in 1994 and 2006 induced considerable coastal flooding locally, robust stratigraphical evidence of prehistoric tropical cyclones and tsunamis from this area is lacking. Based on the analyses of X-ray computed microtomography (mu CT) of oriented sediment cores, multi-proxy sediment and microfaunal analyses, optically stimulated luminescence (OSL) and C-14-AMS dating, this study presents detailed investigations on an allochthonous sand layer of marine origin found in a back-barrier depression on the NW Cape Range peninsula. The event layer consists of material from the adjacent beach and dune, fines and thins inland, and was traced up to similar to 400 m onshore. Although a cyclone-induced origin cannot entirely be ruled out, the particular architecture and fabric of the sediment, rip-up clasts and three subunits point to deposition by a tsunami. As such, it represents the first stratigraphical evidence of a prehistoric, mid-Holocene tsunami in NW Western Australia. It was OSL-dated to 5400-4300 years ago, thus postdating the regional mid-Holocene sea-level highstand. (C) 2015 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code May, Simon Matthias UNSPECIFIED orcid.org/0000-0001-6762-7500 UNSPECIFIED Falvard, Simon UNSPECIFIED UNSPECIFIED UNSPECIFIED Norpoth, Maike UNSPECIFIED UNSPECIFIED UNSPECIFIED Pint, Anna UNSPECIFIED UNSPECIFIED UNSPECIFIED Brill, Dominik UNSPECIFIED orcid.org/0000-0001-8637-4641 UNSPECIFIED Engel, Max UNSPECIFIED orcid.org/0000-0002-2271-4229 UNSPECIFIED Scheffers, Anja UNSPECIFIED orcid.org/0000-0002-9143-5389 UNSPECIFIED Dierick, Manuel UNSPECIFIED UNSPECIFIED UNSPECIFIED Paris, Raphael UNSPECIFIED orcid.org/0000-0003-4569-5187 UNSPECIFIED Squire, Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Bruckner, Helmut UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-284176
DOI:	10.1016/j.sedgeo.2015.11.010
Journal or Publication Title:	Sediment. Geol.
Volume:	332
Page Range:	S. 40 - 51
Date:	2016
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1879-0968
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TROPICAL CYCLONES; DOSE-RATES; SINGLE; QUARTZ; LUMINESCENCE; CALIBRATION; HISTORY; AMMONIA; IMPACT; REEF Multiple languages Geology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/28417