Regional controls in the distribution and morphometry of deep-water gravitational deposits along a convergent tectonic margin. Southern Caribbean of Colombia

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dc.citation.journalTitleMARINE AND PETROLEUM GEOLOGY
dc.contributor.authorNaranjo Vesga, Julián Franciscospa
dc.contributor.authorOrtiz Karpf, Andreaspa
dc.contributor.authorWood, Leslispa
dc.contributor.authorJobe, Z.spa
dc.contributor.authorPaniagua, J.spa
dc.contributor.authorShumaker, L.spa
dc.contributor.authorMateus Tarazona, Darwinspa
dc.contributor.departmentUniversidad EAFIT. Departamento de Geologíaspa
dc.contributor.researchgroupCiencias del Marspa
dc.date.accessioned2020-08-02
dc.date.accessioned2021-03-23T20:21:17Z
dc.date.available2021-03-23T20:21:17Z
dc.date.issued2020-08-06
dc.date.submitted2020-04-18
dc.description.abstractDeep-water fold and thrust belts often develop in convergent tectonic margins, creating irregular slope profiles that control the distribution of deep-water gravity deposits. However, in areas with high sediment supply, the erosion and sedimentation can minimize structural relief and smooth the slope. Using multibeam bathymetry with 3D seismic data, we analyze the distribution of deep-water gravity-driven deposits along the convergent margin of the southern Caribbean of Colombia, comparing areas with different continental sediment supply, slope profile, and shelf width. We identify three geomorphological zones: The Northern, Central and Southern Zones. The Northern Zone is characterized by a gentle slope topography, high sediment supply, and large (>100 km length) channel-levee systems traversing the slope and basin floor. In this zone, shelf-attached mass-transport deposits erode and smooth sea-floor topography. The Central Zone is characterized by low sediment supply and steep and irregular slope topography. Here, short-runout mass-transport deposits sourced from the crests and steep flanks of emergent anticlines are common. The irregular relief created by tectonic deformation forms barriers for sediment transport, leading to tortuous sediment-flow pathways. Submarine canyons incise the thrust-cored anticlines, transporting sediment through interconnected, adjacent piggyback sub-basins. Finally, the Southern Zone is characterized by steep slope and moderate sediment supply. Here, tectonic deformation has been smoothed by numerous shelf-attached mass-transport deposits. The erosional scours carved by mass flows merge downslope and evolve into submarine canyons that can deliver mass-transport deposits more than 80 km into the basin. We analyze the impact of slope profile, sediment input and shelf width on the distribution and morphology of deep-water deposits along the southern Colombian Caribbean margin, and present a predictive model for the depositional patterns more likely to develop in other continental margins affected by deep-water fold and thrust belts. © 2020 Elsevier Ltdeng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=12107
dc.identifier.doi10.1016/j.marpetgeo.2020.104639
dc.identifier.issn02648172
dc.identifier.issn18734073
dc.identifier.otherWOS;000569064200008
dc.identifier.otherSCOPUS;2-s2.0-85089242217
dc.identifier.urihttp://hdl.handle.net/10784/26947
dc.language.isoengeng
dc.publisherElsevier BV
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85089242217&doi=10.1016%2fj.marpetgeo.2020.104639&partnerID=40&md5=31f3cf410249e2d2c972d4adf65a9dcd
dc.rightsElsevier BV
dc.sourceMARINE AND PETROLEUM GEOLOGY
dc.subject.keywordBathymetryeng
dc.subject.keywordDeformationeng
dc.subject.keywordErosioneng
dc.subject.keywordPlanetary surface analysiseng
dc.subject.keywordPredictive analyticseng
dc.subject.keywordSediment transporteng
dc.subject.keywordSeismologyeng
dc.subject.keywordSubmarineseng
dc.subject.keywordTectonicseng
dc.subject.keywordTopographyeng
dc.subject.keywordContinental margineng
dc.subject.keywordConvergent margineng
dc.subject.keywordErosion and sedimentationeng
dc.subject.keywordFold-and-thrust beltseng
dc.subject.keywordMass transport depositeng
dc.subject.keywordMultibeam bathymetryeng
dc.subject.keywordPredictive modelingeng
dc.subject.keywordTectonic deformationseng
dc.subject.keywordDepositseng
dc.subject.keywordbathymetryeng
dc.subject.keywordcontinental margineng
dc.subject.keywordconvergent margineng
dc.subject.keyworddeep seaeng
dc.subject.keyworddepositional environmenteng
dc.subject.keyworderosioneng
dc.subject.keywordfold and thrust belteng
dc.subject.keywordmarine sedimenteng
dc.subject.keywordmorphometryeng
dc.subject.keywordsediment transporteng
dc.subject.keywordseismic dataeng
dc.subject.keywordspatial distributioneng
dc.subject.keywordCaribbean Coast [Colombia]eng
dc.subject.keywordColombiaeng
dc.titleRegional controls in the distribution and morphometry of deep-water gravitational deposits along a convergent tectonic margin. Southern Caribbean of Colombiaeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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