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Exploring Offshore Sediment Evidence of the 1755 CE Tsunami (Faro, Portugal): Implications for the Study of Outer Shelf Tsunami Deposits

dc.rights.licenseopenen_US
dc.contributor.authorKÜMMERER, Vincent
dc.contributor.authorDRAGO, Teresa
dc.contributor.authorVEIGA-PIRES, Cristina
dc.contributor.authorSILVA, Pedro
dc.contributor.authorMAGALHÃES, Vitor
dc.contributor.authorMENA, Anxo
dc.contributor.authorLOPES, Ana
dc.contributor.authorRODRIGUES, Ana Isabel
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSCHMIDT, Sabine
IDREF: 131836129
dc.contributor.authorTERRINHA, Pedro
dc.contributor.authorBAPTISTA, Maria Ana
dc.date.accessioned2024-04-08T12:13:02Z
dc.date.available2024-04-08T12:13:02Z
dc.date.issued2020-09
dc.identifier.issn2075-163Xen_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196756
dc.description.abstractEnOuter shelf sedimentary records are promising for determining the recurrence intervals of tsunamis. However, compared to onshore deposits, offshore deposits are more difficult to access, and so far, studies of outer shelf tsunami deposits are scarce. Here, an example of studying these deposits is presented to infer implications for tsunami-related signatures in similar environments and potentially contribute to pre-historic tsunami event detections. A multidisciplinary approach was performed to detect the sedimentary imprints left by the 1755 CE tsunami in two cores, located in the southern Portuguese continental shelf at water depths of 58 and 91 m. Age models based on 14C and 210Pbxs allowed a probable correspondence with the 1755 CE tsunami event. A multi-proxy approach, including sand composition, grain-size, inorganic geochemistry, magnetic susceptibility, and microtextural features on quartz grain surfaces, yielded evidence for a tsunami depositional signature, although only a subtle terrestrial signal is present. A low contribution of terrestrial material to outer shelf tsunami deposits calls for methodologies that reveal sedimentary structures linked to tsunami event hydrodynamics. Finally, a change in general sedimentation after the tsunami event might have influenced the signature of the 1755 CE tsunami in the outer shelf environment.
dc.language.isoENen_US
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enquartz microtexture
dc.subject.en1755 CE tsunami
dc.subject.enbackwash
dc.subject.enHolocene sediments
dc.subject.enhigh-energy event
dc.subject.enoffshore tsunami sediments
dc.title.enExploring Offshore Sediment Evidence of the 1755 CE Tsunami (Faro, Portugal): Implications for the Study of Outer Shelf Tsunami Deposits
dc.typeArticle de revueen_US
dc.identifier.doi10.3390/min10090731en_US
dc.subject.halSciences de l'environnement/Milieux et Changements globauxen_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalMineralsen_US
bordeaux.page731en_US
bordeaux.volume10en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue9en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamSEDIMen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-03036218
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccCC BYen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Minerals&rft.date=2020-09&rft.volume=10&rft.issue=9&rft.spage=731&rft.epage=731&rft.eissn=2075-163X&rft.issn=2075-163X&rft.au=K%C3%9CMMERER,%20Vincent&DRAGO,%20Teresa&VEIGA-PIRES,%20Cristina&SILVA,%20Pedro&MAGALH%C3%83ES,%20Vitor&rft.genre=article


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