Publication:
Reef development during the Oligo-Miocene transition: A new Aquitanian record from Guajira Colombia

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col.comunidadvinculadaComunidad científica colombianaes_CO
col.contrato0217-2013es_CO
col.date.proyecto2016-07
col.programa.colcienciasPrograma nacional de ciencia y tecnología del mares_CO
col.tipo.espArtículos de investigaciónes_CO
dc.audienceEntidades gubernamentaleses_CO
dc.audienceInvestigadoreses_CO
dc.coverage.spatialGuajiraes_CO
dc.coverage.spatialCaribe colombianoes_CO
dc.creatorZapata Ramírez, Paula Andrea
dc.creatorFlórez, Paola
dc.creatorKlaus, James
dc.creator.corporativoSmithsonian Tropical Research Institute, STRIes_CO
dc.creator.corporativoUniversidad de Granada, UGRes_CO
dc.creator.corporativoCorporación Geológica Areses_CO
dc.creator.mailpaula.zapata.r@gmail.comes_CO
dc.date.accessioned2018-09-24T18:34:00Z
dc.date.available2018-09-24T18:34:00Z
dc.date.embargoEndinfo:eu-repo/date/embargoEnd/2024-01-31es_CO
dc.date.issued2016
dc.description.abstractCaribbean Coral reefs experienced important changes at the Oligo-Miocene transition. The record shows a decrease in modern type reefs at the end of the Oligocene, while non-extensive reefs, mostly confined to shallow or siliciclastic dominated environments, were formed during the early Miocene. At the same time, there are several changes in Caribbean Sea environment including tectonic events, ocean circulation, variations in sea level and temperature. To explore the relationship between regional to global environmental factors on coral evolution and carbonate depositional patterns, we evaluated an Early Miocene (Aquitanian) paleo-reef located at the Siamaná Formation in the Guajira Peninsula, Northern Colombia. Furthermore, we compared the reef with updated ages and coral composition at other Caribbean reefs deposited during the same interval. Siamaná reefs are mainly composed of framestones and rudstones constituted by typical corals of the Oligocene – Miocene taxa (e.g. Agathiphyllia sp., Antiguastrea sp., Diploastrea spp., Siderastrea siderea), most of them in life position forming well consolidated fringing reefs systems with almost 400 m of extension. Comparison with analogous assemblages indicates deposition in similar conditions reported from late Oligocene reefs, but no decrease in coral diversity and/or reduction of the building capacity during the early Miocene were found. Thin sections and total carbon contents analysis also shows absence of siliciclastic input but highest values of carbonate (70.2% to 98%). Results indicate that Siamaná paleo-reef responded to global environmental changes but, their development is also largely controlled by regional patterns where their shallow marine biotas evolved independently. Siamaná collapse is related to a rapid increase in relative sea level and to an increase in regional tectonic subsidence at a later stage (Aquitanian and Burdigarian), rather than an increase in sediment supply during the Oligocene-Miocene transition.es_CO
dc.description.isprojectnoes_CO
dc.description.projectid7277-569-33195es_CO
dc.description.projectnameLinks between marine biotic evolution and carbonate platform and petroleum reservoir development in the Guajira Basing, Colombia Caribbeanes_CO
dc.description.sponsorshipDepartamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colcienciases_CO
dc.formatpdfes_CO
dc.format.extent37 páginases_CO
dc.identifier.issn2055-4877
dc.identifier.urihttps://repositorio.minciencias.gov.co/handle/20.500.14143/21949
dc.language.isoenges_CO
dc.relation.ispartofLinks between marine biotic evolution and carbonate platform and petroleum reservoir development in the Guajira Basing, Colombia Caribbean. La publicación completa está disponible en : <a href="http://repositorio.colciencias.gov.co:80/handle/11146/21946" target="blank">http://repositorio.colciencias.gov.co:80/handle/11146/21946</a>
dc.rightsinfo:eu-repo/semantics/embargoedAccesses_CO
dc.sourceThe Depositional Recordes_CO
dc.source.bibliographicCitationContiene 112 referencias bibliográficas. Véase el documento adjuntoes_CO
dc.subject.keywordCoral reefs
dc.subject.keywordNeogene
dc.subject.keywordBiodiversity
dc.subject.keywordCaribbean
dc.subject.lembArrecifes madrepóricoses_CO
dc.subject.lembGeología -- Investigacioneses_CO
dc.subject.lembCronología geológicaes_CO
dc.subject.lembPaleoecologíaes_CO
dc.subject.spinesTopografía submarina -- Modelos matemáticoses_CO
dc.subject.spinesGeología marinaes_CO
dc.subject.spinesPaleontología de los invertebradoses_CO
dc.subject.spinesGeología históricaes_CO
dc.subject.spinesPaleoclimatologíaes_CO
dc.subject.spinesEstratigrafíaes_CO
dc.titleReef development during the Oligo-Miocene transition: A new Aquitanian record from Guajira Colombiaes_CO
dc.typeArtículo científicoes_CO
dc.type.driverinfo:eu-repo/semantics/articlees_CO
dc.type.hasversioninfo:eu-repo/semantics/publishedVersiones_CO
dspace.entity.typePublication

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