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The Sawqirah contourite drift system in the Arabian Sea (NW Indian Ocean): A case study of interactions between margin reactivation and contouritic processes

dc.rights.licenseopenen_US
hal.structure.identifierLaboratoire de géologie de l'ENS [LGENS]
dc.contributor.authorRODRIGUEZ, Mathieu
hal.structure.identifierCentre for Energy Geoscience, School of Earth and Environment
dc.contributor.authorBOURGET, J.
hal.structure.identifierLaboratoire de géologie de l'ENS [LGENS]
dc.contributor.authorCHAMOT-ROOKE, Nicolas
hal.structure.identifierInstitut des Sciences de la Terre de Paris [iSTeP]
dc.contributor.authorHUCHON, Philippe
hal.structure.identifierInstitut des Sciences de la Terre de Paris [iSTeP]
dc.contributor.authorFOURNIER, Marc
hal.structure.identifierLaboratoire de géologie de l'ENS [LGENS]
dc.contributor.authorDELESCLUSE, Matthias
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorZARAGOSI, Sebastien
IDREF: 189039159
dc.date.accessioned2024-10-04T10:07:05Z
dc.date.available2024-10-04T10:07:05Z
dc.date.issued2016
dc.identifier.issn0025-3227en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/202257
dc.description.abstractEnThe relationships between oceanic circulation in the Arabian Sea and Late Cenozoic climate changes, including variations in monsoon intensity at the million year time-scale, remain poorly investigated. Using multibeam and seismic data, we provide the first description of a contourite drift in the Arabian Sea, along the south-eastern Oman margin. This contourite drift is referred as the “Sawqirah Contourite Drift System”. Late Miocene reactivation of the south-eastern Oman margin resulted in the formation of a complex anticline system, which shaped the seafloor topography above which the Sawqirah Drift subsequently developed. The drift resulted from the circulation of bottom currents within the North Intermediate Indian Water. Major seismic unconformities identified within the Sawqirah Drift were tied to Ocean Drilling Program (ODP) drill holes, and allowed defining distinct episodes of drift construction. At least two of these unconformities record reorganizations of the oceanic circulation at ~ 4.5–4.8 Ma and ~ 2.4 Ma. The 4.5–4.8 Ma-old unconformity is coeval with the onset of upwelling of deep and cold waters in the Owen Basin. The 2.4 Ma-old unconformity records a major episode of Indian monsoon intensification (at the million year time scale) over the Arabian Sea, indicating strong coupling between oceanic and atmospheric circulation processes.
dc.language.isoENen_US
dc.title.enThe Sawqirah contourite drift system in the Arabian Sea (NW Indian Ocean): A case study of interactions between margin reactivation and contouritic processes
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.margeo.2016.08.004en_US
dc.subject.halPlanète et Univers [physics]/Sciences de la Terreen_US
bordeaux.journalMarine Geologyen_US
bordeaux.page1-16en_US
bordeaux.volume381en_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.sourcehal
hal.identifierhal-01396303
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Marine%20Geology&rft.date=2016&rft.volume=381&rft.spage=1-16&rft.epage=1-16&rft.eissn=0025-3227&rft.issn=0025-3227&rft.au=RODRIGUEZ,%20Mathieu&BOURGET,%20J.&CHAMOT-ROOKE,%20Nicolas&HUCHON,%20Philippe&FOURNIER,%20Marc&rft.genre=article


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