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433 Palynostratigraphy of the eocene esmeraldas formation, middle Magdalena Valley Basin, Colombia

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dc.creatorRodriguez, Guillermospa
dc.creatorOboh-Ikuenobe, Franciscaspa
dc.creatorJaramillo, Carlosspa
dc.creatorRueda, Miltonspa
dc.creatorCadena, Edwin Alberto
dc.date.accessioned2020-08-19T14:41:35Z
dc.date.available2020-08-19T14:41:35Z
dc.date.created2012spa
dc.description.abstractThe Eocene EsmeraldasFormation isa very importantoil reservoir intheMiddle Magdalena ValleyBasin, Colombia, which is a preduct of the fragmentatienof a Cenozoic forelandbasinby the uplift of the Northem Andes. Ihe lateralcentinuity of the formation,as well as its correlations with lithostratigraphic units inadjacent basins isnot clearly understood. The Los CorrosFossilHorizon,a molluscan horizonin the upper partof the Esmeraldas Formation,has been used to tracethe top of the formation, Thishorizonisnot laterallycontinuous over thebasinand its age is still debatable. Some of the key palynostratigraphic events inNorthernSouth America are net present inthepalynological record of the Esmeraldas, Palynologicaldata from 82 samples from an eutcrop section intheNuevo Mundo Synclinearea and from seven previouslystudied wells have been integratedwith a palynologicalzonation of nonhem South America inorder to datctheEsrneraldasForrnation.The age ranges from the lateEarly Eocene to the Late Eocene. The Esmeraldas Forrnationiscorrelative withthe upper Picacho ForTnation and the lowerpartof the ConcentracionForrnationin the EasternCoTdillera, and theupper Mirador Forrnationand thebaseof theCarboneraFormationintheLlanosFeothills. [[heLos Corros FossilHorizon is Late Eocene and is time-correlative with a marine transgression inthe central Llanos Foothills,A non-menic multidimensional scaling analysis suggests that florasfrom the Middle Magdalena Valleywere differentfromthe Llanos Foothillsarea during the Middle to Late Eocene. This is apparently due to taphonomic effects. The results efthis study conuibute to a betterunderstanding of theoverall evolution ef the Middle Magdalena ValleyBasin and the evolution of thenonhem Andes.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.24524/jjpal.58.Special_196_2
dc.identifier.issnISSN: 0387-1851
dc.identifier.issnEISSN: 2433-0272
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/27276
dc.language.isoengspa
dc.publisherPalynological Society of Japanspa
dc.relation.citationEndPage197
dc.relation.citationIssueNo. Special
dc.relation.citationStartPage196
dc.relation.citationTitleJapanese Journal of Palynology
dc.relation.citationVolumeVol. 58
dc.relation.ispartofJapanese Journal of Palynology, ISSN: 0387-1851;EISSN: 2433-0272, Vol.58, No.Special (2013); pp. 196-197 spa
dc.relation.urihttps://www.jstage.jst.go.jp/article/jjpal/58/Special/58_KJ00008443174/_pdf/-char/enspa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourceJapanese Journal of Palynologyspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordSouth Americaspa
dc.subject.keywordCenozoicspa
dc.subject.keywordCcontinentalspa
dc.subject.keywordCorrosspa
dc.subject.keywordPalynologyspa
dc.title433 Palynostratigraphy of the eocene esmeraldas formation, middle Magdalena Valley Basin, Colombiaspa
dc.title.TranslatedTitle433 Palinoestratigrafía de la formación eoceno esmeraldas, Cuenca del Valle del Magdalena Medio, Colombiaspa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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