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Geomorphology of a modern carbonate slope system and associated sedimentary processes: Example of the giant Great Abaco Canyon, Bahamas

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorRECOUVREUR, Audrey
dc.contributor.authorFABREGAS, Natacha
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMULDER, Thierry
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorHANQUIEZ, Vincent
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorFAUQUEMBERGUE, Kelly
IDREF: 233247483
dc.contributor.authorTOURNADOUR, Elsa
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorGILLET, Herve
dc.contributor.authorBORGOMANO, Jean
dc.contributor.authorPOLI, Emmanuelle
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorKUCHARSKI, Jean‐Baptiste
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorWILK, Stanislas
dc.date.accessioned2024-11-04T12:40:18Z
dc.date.available2024-11-04T12:40:18Z
dc.date.issued2021-01
dc.identifier.issn0037-0746en_US
dc.identifier.urioai:crossref.org:10.1111/sed.12777
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/203118
dc.description.abstractEnThe large acoustic data set acquired during the Carambar cruises is composed of high resolution bathymetry, backscatter data and very-high resolution seismic lines which allow for an overview of the morphology and sediment transfer processes from the shallow upper slope to the abyssal plain of a modern carbonate system: the north-eastern slope of the Little Bahama Bank. Surficial distribution of the acoustic facies and echofacies reflects a wide variety of sedimentary processes along and across the slope. The western sector of the Little Bahama Bank is dominated by depositional processes whereas its eastern sector, which is incised in the lower slope by giant canyons, is affected by erosion and bypass processes. Datasets suggest that currents play an important role both in along-slope sedimentary processes and in the abyssal plain. The Antilles Current appears to affect a large part of the middle and lower slopes. The absence of sizeable present-day channel/levee complexes or lobes at the mouth of the canyon - revealed by the bathymetric map - indicates that the southward flowing Deep Western Boundary Current influences modern abyssal sediment deposition. Based on depositional processes and indicators of canyon maturity observed in facies distribution, the current study proposes that differential subsidence affects the eastern versus western part of the bank. The morphology of the Great Abaco Canyon and Little Abaco Canyon, which extend parallel to the platform, and the Little Bahama Bank slope appears to be related to the Great Abaco Fracture Zone.
dc.language.isoENen_US
dc.sourcecrossref
dc.subject.enBackscatter Bahamas
dc.subject.encarbonate slope
dc.subject.enechofacies
dc.subject.engiant canyon
dc.subject.ensea floor morphology
dc.subject.ensedimentary processes
dc.title.enGeomorphology of a modern carbonate slope system and associated sedimentary processes: Example of the giant Great Abaco Canyon, Bahamas
dc.typeArticle de revueen_US
dc.identifier.doi10.1111/sed.12777en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalSedimentologyen_US
bordeaux.page266-293en_US
bordeaux.volume68en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue1en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
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=Sedimentology&rft.date=2021-01&rft.volume=68&rft.issue=1&rft.spage=266-293&rft.epage=266-293&rft.eissn=0037-0746&rft.issn=0037-0746&rft.au=RECOUVREUR,%20Audrey&FABREGAS,%20Natacha&MULDER,%20Thierry&HANQUIEZ,%20Vincent&FAUQUEMBERGUE,%20Kelly&rft.genre=article


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