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Enhanced development of lacustrine microbialites on gravity flow deposits, Great Salt Lake, Utah, USA.

hal.structure.identifierBiogéosciences [UMR 6282] [BGS]
dc.contributor.authorBOUTON, Anthony
hal.structure.identifierBiogéosciences [UMR 6282] [BGS]
dc.contributor.authorVENNIN, Emmanuelle
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMULDER, Thierry
hal.structure.identifierGéoressources et environnement
dc.contributor.authorPACE, Aurélie
hal.structure.identifierGéoressources et environnement
dc.contributor.authorBOURILLOT, Raphaël
hal.structure.identifierBiogéosciences [UMR 6282] [BGS]
dc.contributor.authorTHOMAZO, Christophe
hal.structure.identifierBiogéosciences [UMR 6282] [BGS]
dc.contributor.authorBRAYARD, Arnaud
hal.structure.identifierFaculty of Physics
hal.structure.identifierPoznań Radiocarbon Laboratory | Poznańskie Laboratorium Radiowęglowe
dc.contributor.authorGOSLAR, Tomasz
hal.structure.identifierBiogéosciences [UMR 6282] [BGS]
dc.contributor.authorBUONCRISTIANI, Jean-François
hal.structure.identifierCentre de Recherche & Innovation Gaz et Energies Nouvelles - GDF Suez [CRIGEN]
dc.contributor.authorDÉSAUBLIAUX, Guy
hal.structure.identifierCenter for Integrative Geosciences
dc.contributor.authorVISSCHER, Pieter T.
dc.date.accessioned2024-04-23T13:34:06Z
dc.date.available2024-04-23T13:34:06Z
dc.date.issued2016-07-15
dc.identifier.issn0037-0738
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/199287
dc.description.abstractEnThe Great Salt Lake, Utah, USA is a shallow, hypersaline, intracontinental lake hosting extensive microbial deposits. At a large spatial scale, the distribution of these deposits is driven by environmental and geodynamical factors (i.e. water-level fluctuations and a fault-related framework). A detailed mapping of the Buffalo Point area, in the north-western part of Antelope Island, indicates the presence of an anomalous concentration of microbial deposits dated ca. 5.8 ka BP and distributed along a lobe-shaped geometry. This uncommon microbial deposit geometry results from an extensive colonization of a conglomerate substrate exhibiting an accumulation of m-sized rounded Cambrian quartzite boulders. We suggest that this conglomerate substrate provides a stable nucleation point that promotes the development and preservation of the lobe-shaped microbial deposits. Microbial deposits may also have protected the conglomerate substrate from erosional processes and thereby increased the preservation potential of the lobe-shaped structure. Based on the characteristics of the conglomerate (e.g. grain size, texture) and its location (i.e. 200 m beyond the average shoreline), this lobe-shaped structure likely results from subaqueous debris or a hyperconcentrated density flow that transports sedimentary material from the Buffalo Point slopes downward to the shore. We estimate the age of the conglomerate deposition to be between 21 and 12 ka BP. The initiation of the flow may have been triggered by various mechanisms, but the existence of a major active normal fault in the vicinity of these deposits suggests that an earthquake could have destabilized the accumulated sediments and resulted in conglomerate emplacement. The catastrophic 15 ka BP Bonneville Flood, which led to a drop in the lake level (approximately 110 m), may also provide an explanation for the initiation of the flow.
dc.language.isoen
dc.publisherElsevier
dc.subject.enMicrobialites
dc.subject.enGravity flow
dc.subject.enControlling factors
dc.subject.enLacustrine
dc.subject.enGreat Salt Lake
dc.title.enEnhanced development of lacustrine microbialites on gravity flow deposits, Great Salt Lake, Utah, USA.
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.sedgeo.2016.05.004
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre/Stratigraphie
bordeaux.journalSedimentary Geologyen_US
bordeaux.page1-12
bordeaux.volume341
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
bordeaux.import.sourcehal
hal.identifierhal-01326530
hal.version1
hal.popularnon
hal.audienceInternationale
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=Sedimentary%20Geology&rft.date=2016-07-15&rft.volume=341&rft.spage=1-12&rft.epage=1-12&rft.eissn=0037-0738&rft.issn=0037-0738&rft.au=BOUTON,%20Anthony&VENNIN,%20Emmanuelle&MULDER,%20Thierry&PACE,%20Aur%C3%A9lie&BOURILLOT,%20Rapha%C3%ABl&rft.genre=article


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