The record of the little ice age in the pampean lakes

The Little Ice Age (LIA) is a climate episode between the 16th and middle 19th centuries, characterized in Europe by colder temperatures and occasionally stormy weather. In certain areas of Europe, long instrumental observations record the Little Ice Age partially; however, in the pampean region met...

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Detalhes bibliográficos
Autores: Laprida, C., Orgeira, M.J., García Chapori, N.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2009
País:Argentina
Recursos:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
Repositório:Biblioteca Digital (UBA-FCEN)
Idioma:inglês
OAI Identifier:paperaa:paper_00044822_v65_n4_p603_Laprida
Acesso em linha:http://hdl.handle.net/20.500.12110/paper_00044822_v65_n4_p603_Laprida
Access Level:Acceso aberto
Palavra-chave:Holocene
Little ice age
Pampean lakes
drought
humidity
lacustrine deposit
lake level
Little Ice Age
paleoclimate
proxy climate record
reconstruction
sediment core
Argentina
Sierras Pampeanas
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network_acronym_str AR
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repository_id_str
spelling The record of the little ice age in the pampean lakes Laprida, C.Orgeira, M.J.García Chapori, N.HoloceneLittle ice agePampean lakesdroughthumiditylacustrine depositlake levelLittle Ice Agepaleoclimateproxy climate recordreconstructionsediment coreArgentinaSierras PampeanasThe Little Ice Age (LIA) is a climate episode between the 16th and middle 19th centuries, characterized in Europe by colder temperatures and occasionally stormy weather. In certain areas of Europe, long instrumental observations record the Little Ice Age partially; however, in the pampean region meteorological data only started about one hundred years ago. The objective of this contribution is to provide new evidences about the Little Ice Age in the Pampean plain based on lake cores. Short cores of Chascomús and Monte lakes were analyzed and, according to AMS data, they span the last 500 years. The Chascomús core consists of three fining upward sequences. Sediment logical and biological proxies demonstrate a benign period from the end of the 15th century. Around 1700 AD lake level decreased and a dry period started and lasted for almost 150 years. After 1850 AD higher lake levels and increased moisture dominate the pampean scenario. The del Monte lake core is also composed of three fining upwards sequences, and AMS chronology assigned a basal age between 1441-1494 AD. Although the model age needs improvement, the events of Chascomús and del Monte lakes seem to be correlated and show coherent regional tendencies of humidity and droughts during the last 500 years.Fil:Laprida, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Orgeira, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:García Chapori, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00044822_v65_n4_p603_LapridaRev. Asoc. Geol. Argent. 2009;65(4):603-611reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2024-05-10T10:42:44Zpaperaa:paper_00044822_v65_n4_p603_LapridaInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962024-05-10 10:42:45.416Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv The record of the little ice age in the pampean lakes
title The record of the little ice age in the pampean lakes
spellingShingle The record of the little ice age in the pampean lakes
Laprida, C.
Holocene
Little ice age
Pampean lakes
drought
humidity
lacustrine deposit
lake level
Little Ice Age
paleoclimate
proxy climate record
reconstruction
sediment core
Argentina
Sierras Pampeanas
title_short The record of the little ice age in the pampean lakes
title_full The record of the little ice age in the pampean lakes
title_fullStr The record of the little ice age in the pampean lakes
title_full_unstemmed The record of the little ice age in the pampean lakes
title_sort The record of the little ice age in the pampean lakes
dc.creator.none.fl_str_mv Laprida, C.
Orgeira, M.J.
García Chapori, N.
author Laprida, C.
author_facet Laprida, C.
Orgeira, M.J.
García Chapori, N.
author_role author
author2 Orgeira, M.J.
García Chapori, N.
author2_role author
author
dc.subject.none.fl_str_mv Holocene
Little ice age
Pampean lakes
drought
humidity
lacustrine deposit
lake level
Little Ice Age
paleoclimate
proxy climate record
reconstruction
sediment core
Argentina
Sierras Pampeanas
topic Holocene
Little ice age
Pampean lakes
drought
humidity
lacustrine deposit
lake level
Little Ice Age
paleoclimate
proxy climate record
reconstruction
sediment core
Argentina
Sierras Pampeanas
description The Little Ice Age (LIA) is a climate episode between the 16th and middle 19th centuries, characterized in Europe by colder temperatures and occasionally stormy weather. In certain areas of Europe, long instrumental observations record the Little Ice Age partially; however, in the pampean region meteorological data only started about one hundred years ago. The objective of this contribution is to provide new evidences about the Little Ice Age in the Pampean plain based on lake cores. Short cores of Chascomús and Monte lakes were analyzed and, according to AMS data, they span the last 500 years. The Chascomús core consists of three fining upward sequences. Sediment logical and biological proxies demonstrate a benign period from the end of the 15th century. Around 1700 AD lake level decreased and a dry period started and lasted for almost 150 years. After 1850 AD higher lake levels and increased moisture dominate the pampean scenario. The del Monte lake core is also composed of three fining upwards sequences, and AMS chronology assigned a basal age between 1441-1494 AD. Although the model age needs improvement, the events of Chascomús and del Monte lakes seem to be correlated and show coherent regional tendencies of humidity and droughts during the last 500 years.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_00044822_v65_n4_p603_Laprida
url http://hdl.handle.net/20.500.12110/paper_00044822_v65_n4_p603_Laprida
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Rev. Asoc. Geol. Argent. 2009;65(4):603-611
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 15.198674

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