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Coastal dunes in Westland, New Zealand, provide a record of paleoseismic activity on the Alpine fault

2007; Geological Society of America; Volume: 35; Issue: 8 Linguagem: Inglês

10.1130/g23554a.1

1943-2682

Andrew Wells, James Goff,

Geology and Paleoclimatology Research

Research Article| August 01, 2007 Coastal dunes in Westland, New Zealand, provide a record of paleoseismic activity on the Alpine fault Andrew Wells; Andrew Wells 1Geological and Nuclear Sciences Ltd., P.O. Box 30368, Lower Hutt, New Zealand Search for other works by this author on: GSW Google Scholar James Goff James Goff 2National Institute of Water and Atmosphere Ltd., P.O. Box 8602, Christchurch, New Zealand Search for other works by this author on: GSW Google Scholar Geology (2007) 35 (8): 731–734. https://doi.org/10.1130/G23554A.1 Article history received: 10 Dec 2006 rev-recd: 02 Apr 2007 accepted: 04 Apr 2007 first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Andrew Wells, James Goff; Coastal dunes in Westland, New Zealand, provide a record of paleoseismic activity on the Alpine fault. Geology 2007;; 35 (8): 731–734. doi: https://doi.org/10.1130/G23554A.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Regional episodes of coastal progradation and dune formation in South Westland, New Zealand, have quickly followed all known Alpine fault earthquakes since A.D. 1200. This reflects rapid transport of large postseismic sediment pulses from mountain catchments to the coast and accumulation of this material as a dune ridge. This study provides the first demonstration of this link for multiple events over a region. The dune sequences also provide evidence of another previously unrecognized regional aggradation event, which may be earthquake-related, and which occurred just 50 yr after a large Alpine fault earthquake. Coastal dunes have great potential for paleoseismic application because the spatial separation of earthquake-induced sediment pulses on a prograding coast allows identification of events closely spaced in time. Coastal dune systems have the potential to improve paleoseismic understanding over the Holocene for many plate boundary faults near coastal areas. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.