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Deposits related to the failure of the Malpasset Dam in 1959. An analogue for hyperpycnal deposits from jökulhlaups

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMULDER, Thierry
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorZARAGOSI, Sebastien
IDREF: 189039159
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorJOUANNEAU, J.M.
dc.contributor.authorBELLAICHE, G.
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorGUERINAUD, S.
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorQUERNEAU, J.
dc.date.accessioned2024-10-25T11:42:10Z
dc.date.available2024-10-25T11:42:10Z
dc.date.issued2009-05-01
dc.identifier.issn0025-3227en_US
dc.identifier.urihttps://www.researchgate.net/publication/233920085_Deposits_related_to_the_failure_of_the_Malpasset_Dam_in_1959_An_analogue_for_hyperpycnal_deposits_from_jokulhlaups
dc.identifier.urioai:researchgate.net:233920085
dc.identifier.urioai:crossref.org:10.1016/j.margeo.2009.02.002
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/202813
dc.description.abstractEnSediment cores collected in the Gulf of Fréjus (SE France) contain submarine deposits related to the failure of the Malpasset Dam in 1959. These deposits constitute a dark, sandy terrigeneous layer of 10–40 cm thickness lying above an erosion surface. The deposits are composed of ungraded, non-bioturbated sands and silts displaying no apparent sedimentary structure, but rich in organic matter and rock or shell fragments. During the event, this layer prograded onto the inner continental shelf and froze rapidly. These hyperconcentrated flow deposits are related to an unsteady inertia flow generated by a surge-like flood and bedload-dominated hyperpycnal flow. Rapid freezing on flow sides generated lateral, coarse-grained, levee-shape deposits. The deposits related to the failure of the Malpasset Dam are drastically different from classical suspended-load-dominated hyperpycnites deposited by a steady, flood-generated, hyperpycnal flow. However, they are comparable with present-day deposits on a volcanic, ice-covered margin (Icelandic jökulhlaups), with ancient deposits resulting from the pulsating output of subglacial lakes during a deglaciation, or with Martian landforms resulting from sporadic ice–melt events during early Martian times.
dc.language.isoENen_US
dc.sourceresearchgate
dc.sourcecrossref
dc.title.enDeposits related to the failure of the Malpasset Dam in 1959. An analogue for hyperpycnal deposits from jökulhlaups
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.margeo.2009.02.002en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalMarine Geologyen_US
bordeaux.page81-89en_US
bordeaux.volume260en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue1-4en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamGEOLSEDen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-04753628
hal.version1
hal.date.transferred2024-10-25T11:42:11Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
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