Afficher la notice abrégée

The sedimentary record of the 1960 tsunami in two coastal lakes on Isla de Chiloé, south central Chile

dc.rights.licenseopenen_US
dc.contributor.authorKEMPF, Philipp
dc.contributor.authorMOERNAUT, Jasper
dc.contributor.authorVAN DAELE, Maarten
dc.contributor.authorVERMASSEN, Flor
dc.contributor.authorVANDOORNE, Willem
dc.contributor.authorPINO, Mario
dc.contributor.authorURRUTÍA, Roberto
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSCHMIDT, Sabine
IDREF: 131836129
dc.contributor.authorGARRETT, Ed
dc.contributor.authorDE BATIST, Marc
dc.date.accessioned2024-05-29T09:00:54Z
dc.date.available2024-05-29T09:00:54Z
dc.date.issued2015-08-30
dc.identifier.issn0037-0738en_US
dc.identifier.urioai:crossref.org:10.1016/j.sedgeo.2015.08.004
dc.identifier.uriorcid:0000-0002-1625-2080:10.1016/j.sedgeo.2015.08.004
dc.identifier.uriftunivgent:oai:archive.ugent.be:6931447
dc.identifier.urioai:researchgate.net:281346462
dc.identifier.uriorcid:0000-0002-8530-4438:10.1016/j.sedgeo.2015.08.004
dc.identifier.uriorcid:0000-0003-3164-4274:10.1016/j.sedgeo.2015.08.004
dc.identifier.uriorcid:0000-0002-5985-9747:10.1016/j.sedgeo.2015.08.004
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/200118
dc.description.abstractEnThis study describes sediments deposited by the tsunami following the 1960 Great Chilean Earthquake (MW 9.5) in two coastal lakes, Lakes Cucao and Huelde, on thewest coast of Isla de Chiloé, south central Chile (42.6°S). Subbottom profiles and side scan sonar mosaics illustrate the sedimentary context of transects of gravity cores. The stratigraphy of both lakes features gyttja sedimentation, interrupted by the abrupt emplacement of a sandy layer with mud rip-up clasts and a mud cap. This sandy layer reflects a sudden change in sedimentary environment, most probably caused by a high-energy inundation. Radionuclide analyses (137Cs and 210Pb) date the inundation deposit to shortly before the mid 1960s. The only known event that matches the sedimentological and chronological criteria is the AD 1960 tsunami. Using grain size analysis and comparisonswith samples frommodern environments, we demonstrate that the proximal (seaward) part of the deposit consists of a mixture of sand derived from subaerial sources and reworked gyttja lake sediment. In the distal (landward) part of Lake Cucao, the sand component is lost and the deposit consists entirely of remobilised lake sediments. The repetition of tsunami deposit sequences in Lake Huelde suggests a minimumof three inundatingwaves. Sub-bottom profiles and side scan sonar mosaics reveal tsunami inundation over the barrier and more prominently through the outlet river channel. The dominant role of the river channel as a pathway for sediment transport is also described in core samples by tsunami deposits that fine away from the channel mouth. The identification and description of the deposit left by a known tsunami provide important insights into tsunami sedimentation in coastal lakes and have the potential to help in the search for paleotsunami evidence.
dc.language.isoENen_US
dc.sourcecrossref
dc.sourceorcid
dc.sourcebase
dc.sourceresearchgate
dc.title.enThe sedimentary record of the 1960 tsunami in two coastal lakes on Isla de Chiloé, south central Chile
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.sedgeo.2015.08.004en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalSedimentary Geologyen_US
bordeaux.page73-86en_US
bordeaux.volume328en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamGEOLSEDen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-04592090
hal.version1
hal.date.transferred2024-05-29T09:00:56Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Sedimentary%20Geology&rft.date=2015-08-30&rft.volume=328&rft.spage=73-86&rft.epage=73-86&rft.eissn=0037-0738&rft.issn=0037-0738&rft.au=KEMPF,%20Philipp&MOERNAUT,%20Jasper&VAN%20DAELE,%20Maarten&VERMASSEN,%20Flor&VANDOORNE,%20Willem&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée