Palynofacies analysis of the late Holocene San Nicolás terrace of the Cauca paleolake and paleohydrology of northern South America

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dc.citation.journalTitlePALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
dc.contributor.authorGarcia, Yuri C.spa
dc.contributor.authorIgnacio Martinez, J.spa
dc.contributor.authorVelez, Maria I.spa
dc.contributor.authorYokoyama, Yusukespa
dc.contributor.authorBattarbee, Richard W.spa
dc.contributor.authorSuter, Fiore D.spa
dc.contributor.departmentUniversidad EAFIT. Departamento de Geologíaspa
dc.contributor.researchgroupCiencias del Marspa
dc.date.accessioned2021-03-23T20:20:23Z
dc.date.available2021-03-23T20:20:23Z
dc.date.issued2011-01-01
dc.description.abstractThe detailed palynofacies analysis of the late Holocene laminated succession of the San Nicolás terrace in the middle Cauca Valley, northern Colombia, is interpreted as the product of sedimentation in a lacustrine to fluvial dominated setting. Radiocarbon analyses reveal that the succession was deposited between ~. 3500 and a few hundreds of years with sedimentary rates in excess of ~. 600. cm/ka. The milimetric laminae and the high frequency fluctuations in the content of the palynodebris of terrestrial origin, i.e., the high altered ligno-cellulosic debris/amorphous organic matter ratio, together with diatoms typical of fluvial conditions, such as Aulacoseira granulata do suggest an intermittent and continuous hydrological and biological connectivity with the Cauca River, akin to a varzea lacustrine environment. Drier to wetter conditions appear to occur, moving upward in the succession. This might reflect regional precipitation conditions all along the Cauca Valley and the southern migration of the intertropical convergence zone. © 2010 Elsevier B.V.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1398
dc.identifier.doi10.1016/j.palaeo.2010.11.010
dc.identifier.issn00310182
dc.identifier.issn1872616X
dc.identifier.otherWOS;000287051700025
dc.identifier.otherSCOPUS;2-s2.0-78650601080
dc.identifier.urihttp://hdl.handle.net/10784/26873
dc.language.isoengeng
dc.publisherELSEVIER SCIENCE BV
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-78650601080&doi=10.1016%2fj.palaeo.2010.11.010&partnerID=40&md5=a63d49bf2e1ae784eb495e41ef84b0d7
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0031-0182
dc.sourcePALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
dc.subject.keywordfacieseng
dc.subject.keywordHoloceneeng
dc.subject.keywordlacustrine depositeng
dc.subject.keywordlaminationeng
dc.subject.keywordpaleohydrologyeng
dc.subject.keywordpaleolimnologyeng
dc.subject.keywordpalynologyeng
dc.subject.keywordradiocarbon datingeng
dc.subject.keywordArgentinaeng
dc.subject.keywordBuenos Aires [Argentina]eng
dc.subject.keywordCauca Valleyeng
dc.subject.keywordColombiaeng
dc.subject.keywordSan Nicolaseng
dc.subject.keywordAulacoseira granulataeng
dc.subject.keywordBacillariophytaeng
dc.titlePalynofacies analysis of the late Holocene San Nicolás terrace of the Cauca paleolake and paleohydrology of northern South Americaeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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