Late Holocene evidence of coseismic subsidence on the San Juan delta, Pacific coast of Colombia

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dc.citation.journalTitleJOURNAL OF COASTAL RESEARCH
dc.contributor.authorGonzalez, JLspa
dc.contributor.authorCorrea, IDspa
dc.contributor.departmentUniversidad EAFIT. Departamento de Geologíaspa
dc.contributor.researchgroupCiencias del Marspa
dc.date.accessioned2021-03-23T20:20:24Z
dc.date.available2021-03-23T20:20:24Z
dc.date.issued2001-01-01
dc.description.abstractThe San Juan delta of Colombia formed under a complex physical setting. Among the unusual factors that controlled the delta formation are: its location in an area with one of the highest precipitation rate anywhere in the world, highly variable river discharge and high sea levels of short duration, both associated with El Niño-La Niña climatic disturbance, and high mesotidal range combined with a medium to low wave energy. Of all the aspects that make the physical setting complex, the high seismicity produced by the subduction of the Nazca plate under the South American plate, has perhaps, been the most important controlling factor in the Late Holocene development of the delta. Coring on its SW island retrieved soils buried, 1.2-1.5 m by intertidal deposits; the sharp contact between the soils and the mantling deposits, implies large sudden submergence, which is most simply explained as being coseismic, associated with the high seismicity of the area. Timing of the earthquake that caused subsidence, is placed around 500 years BP. Evidence from recent earthquakes along the South central Pacific coast of Colombia indicates that - subsidence > 1 m requires a M 7.9 or greater earthquake.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1506
dc.identifier.issn07490208
dc.identifier.issn15515036
dc.identifier.otherSCOPUS;2-s2.0-0034974877
dc.identifier.otherWOS;000169316900020
dc.identifier.urihttp://hdl.handle.net/10784/26883
dc.language.isoengeng
dc.publisherCOASTAL EDUCATION & RESEARCH FOUNDATION
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0034974877&partnerID=40&md5=033a6b21e80f6f6244d6c7c8337744cb
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0749-0208
dc.sourceJOURNAL OF COASTAL RESEARCH
dc.subject.keywordcoseismic processeng
dc.subject.keyworddeltaeng
dc.subject.keywordHoloceneeng
dc.subject.keywordsubsidenceeng
dc.subject.keywordtectonic settingeng
dc.subject.keywordColombiaeng
dc.titleLate Holocene evidence of coseismic subsidence on the San Juan delta, Pacific coast 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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