Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, Colombia

The late Pleistocene-Holocene ecological and limnological history of Lake Fúquene (2580 m a.s.l.), in the Colombian Andes, is reconstructed on the basis of diatom, pollen and sediment analyses of the upper 7 m of the core Fúquene-7. Time control is provided by 11 accelerator mass spectrometry (AMS)...

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Detalles Bibliográficos
Autores: Vélez, Maria Isabel, Hooghiemstra, Henry, Metcalfe, Sarah, Martínez, Ignacio, Mommersteeg, Herman
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2003
País:Colombia
Institución:Universidad EAFIT
Repositorio:Repositorio EAFIT
Idioma:inglés
OAI Identifier:oai:repository.eafit.edu.co:10784/26865
Acceso en línea:https://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1180
http://hdl.handle.net/10784/26865
Access Level:acceso abierto
Palabra clave:diatom
lake evolution
Last Glacial Maximum
paleoenvironment
palynology
Quaternary
Colombia
Abra
Bacillariophyta
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repository_id_str
spelling Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, ColombiaVélez, Maria IsabelHooghiemstra, HenryMetcalfe, SarahMartínez, IgnacioMommersteeg, Hermandiatomlake evolutionLast Glacial MaximumpaleoenvironmentpalynologyQuaternaryColombiaAbraBacillariophytaThe late Pleistocene-Holocene ecological and limnological history of Lake Fúquene (2580 m a.s.l.), in the Colombian Andes, is reconstructed on the basis of diatom, pollen and sediment analyses of the upper 7 m of the core Fúquene-7. Time control is provided by 11 accelerator mass spectrometry (AMS) 14C dates ranging from 19 670 ± 240 to 6040 ± 60 yr BP. In this paper we present the evolution of the lake and its surroundings. Glacial times were cold and dry, lake-levels were low and the area was surrounded by paramo and subparamo vegetation. Late-glacial conditions were warm and humid. The El Abra Stadial, a Younger Dryas equivalent, is reflected by a gap in the sedimentary record, a consequence of the cessation of deposition owing to a drop in lake-level. The early Holocene was warm and humid; at this time the lake reached its maximum extension and was surrounded by Andean forest. The onset of the drier climate prevailing today took place in the middle Holocene, a process that is reflected earlier in the diatom and sediment records than in the pollen records. In the late Holocene human activity reduced the forest and transformed the landscape. Climate patterns from the Late-glacial and throughout the Holocene, as represented in our record, are similar to other records from Colombia and northern South America (the Caribbean, Venezuela and Panama) and suggest that the changes in lake-level were the result of precipitation variations driven by latitudinal shifts of the Intertropical Convergence Zone. © 2003 John Wiley and Sons, Ltd.JOHN WILEY & SONS LTDUniversidad EAFIT. Departamento de GeologíaCiencias del Mar2021-03-23T20:20:22Z2003-01-012021-03-23T20:20:22Zinfo:eu-repo/semantics/articlearticleinfo:eu-repo/semantics/publishedVersionpublishedVersionArtículoapplication/pdfhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=11800267817910991417WOS;000180962300003SCOPUS;2-s2.0-0037282908http://hdl.handle.net/10784/2686510.1002/jqs.730Journal Of Quaternary Sciencereponame:Repositorio EAFITinstname:Universidad EAFITinstacron:Universidad EAFITenghttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0037282908&doi=10.1002%2fjqs.730&partnerID=40&md5=392956bffe7dd69b47dc88d644c1ef7chttps://onlinelibrary.wiley.com/doi/10.1002/jqs.730https://v2.sherpa.ac.uk/id/publication/issn/0267-8179info:eu-repo/semantics/openAccessAcceso abierto2023-02-28T20:28:07Z
dc.title.none.fl_str_mv Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, Colombia
title Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, Colombia
spellingShingle Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, Colombia
Vélez, Maria Isabel
diatom
lake evolution
Last Glacial Maximum
paleoenvironment
palynology
Quaternary
Colombia
Abra
Bacillariophyta
title_short Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, Colombia
title_full Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, Colombia
title_fullStr Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, Colombia
title_full_unstemmed Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, Colombia
title_sort Pollen-and diatom based environmental history since the Last Glacial Maximum from the Andean core Fúquene-7, Colombia
dc.creator.none.fl_str_mv Vélez, Maria Isabel
Hooghiemstra, Henry
Metcalfe, Sarah
Martínez, Ignacio
Mommersteeg, Herman
author Vélez, Maria Isabel
author_facet Vélez, Maria Isabel
Hooghiemstra, Henry
Metcalfe, Sarah
Martínez, Ignacio
Mommersteeg, Herman
author_role author
author2 Hooghiemstra, Henry
Metcalfe, Sarah
Martínez, Ignacio
Mommersteeg, Herman
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad EAFIT. Departamento de Geología
Ciencias del Mar
dc.subject.none.fl_str_mv diatom
lake evolution
Last Glacial Maximum
paleoenvironment
palynology
Quaternary
Colombia
Abra
Bacillariophyta
topic diatom
lake evolution
Last Glacial Maximum
paleoenvironment
palynology
Quaternary
Colombia
Abra
Bacillariophyta
description The late Pleistocene-Holocene ecological and limnological history of Lake Fúquene (2580 m a.s.l.), in the Colombian Andes, is reconstructed on the basis of diatom, pollen and sediment analyses of the upper 7 m of the core Fúquene-7. Time control is provided by 11 accelerator mass spectrometry (AMS) 14C dates ranging from 19 670 ± 240 to 6040 ± 60 yr BP. In this paper we present the evolution of the lake and its surroundings. Glacial times were cold and dry, lake-levels were low and the area was surrounded by paramo and subparamo vegetation. Late-glacial conditions were warm and humid. The El Abra Stadial, a Younger Dryas equivalent, is reflected by a gap in the sedimentary record, a consequence of the cessation of deposition owing to a drop in lake-level. The early Holocene was warm and humid; at this time the lake reached its maximum extension and was surrounded by Andean forest. The onset of the drier climate prevailing today took place in the middle Holocene, a process that is reflected earlier in the diatom and sediment records than in the pollen records. In the late Holocene human activity reduced the forest and transformed the landscape. Climate patterns from the Late-glacial and throughout the Holocene, as represented in our record, are similar to other records from Colombia and northern South America (the Caribbean, Venezuela and Panama) and suggest that the changes in lake-level were the result of precipitation variations driven by latitudinal shifts of the Intertropical Convergence Zone. © 2003 John Wiley and Sons, Ltd.
publishDate 2003
dc.date.none.fl_str_mv 2003-01-01
2021-03-23T20:20:22Z
2021-03-23T20:20:22Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
article
info:eu-repo/semantics/publishedVersion
publishedVersion
Artículo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1180
02678179
10991417
WOS;000180962300003
SCOPUS;2-s2.0-0037282908
http://hdl.handle.net/10784/26865
10.1002/jqs.730
url https://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1180
http://hdl.handle.net/10784/26865
identifier_str_mv 02678179
10991417
WOS;000180962300003
SCOPUS;2-s2.0-0037282908
10.1002/jqs.730
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.scopus.com/inward/record.uri?eid=2-s2.0-0037282908&doi=10.1002%2fjqs.730&partnerID=40&md5=392956bffe7dd69b47dc88d644c1ef7c
https://onlinelibrary.wiley.com/doi/10.1002/jqs.730
dc.rights.none.fl_str_mv https://v2.sherpa.ac.uk/id/publication/issn/0267-8179
info:eu-repo/semantics/openAccess
Acceso abierto
rights_invalid_str_mv https://v2.sherpa.ac.uk/id/publication/issn/0267-8179
Acceso abierto
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv JOHN WILEY & SONS LTD
publisher.none.fl_str_mv JOHN WILEY & SONS LTD
dc.source.none.fl_str_mv Journal Of Quaternary Science
reponame:Repositorio EAFIT
instname:Universidad EAFIT
instacron:Universidad EAFIT
instname_str Universidad EAFIT
instacron_str Universidad EAFIT
institution Universidad EAFIT
reponame_str Repositorio EAFIT
collection Repositorio EAFIT
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