Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina

The Jáchal River Valley displays a number of significant Holocene sedimentary accumulations made up of fine-grained materials. These deposits are interpreted as the sedimentary infill of shallow temporary lakes that were generated by slow growing episodes of alluvial fans that obstructed the Jáchal...

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Authors: Colombo Piñol, Ferran, Busquets, Pere, Sole de Porta, Nuria, Limarino, Carlos Oscar, Heredia, Nemesio, Rodriguez Fernandez, Luis Roberto, Alvarez Marron, Joaquina
Format: article
Status:Published version
Publication Date:2009
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/74272
Online Access:http://hdl.handle.net/11336/74272
Access Level:Open access
Keyword:Argentina
Dating
Holocene
Lacustrine System
Palinology
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
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repository_id_str
spelling Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, ArgentinaColombo Piñol, FerranBusquets, PereSole de Porta, NuriaLimarino, Carlos OscarHeredia, NemesioRodriguez Fernandez, Luis RobertoAlvarez Marron, JoaquinaArgentinaDatingHoloceneLacustrine SystemPalinologyhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Jáchal River Valley displays a number of significant Holocene sedimentary accumulations made up of fine-grained materials. These deposits are interpreted as the sedimentary infill of shallow temporary lakes that were generated by slow growing episodes of alluvial fans that obstructed the Jáchal River Valley. The association of fossil remains through the Holocene sedimentary sequence suggests that the accumulation of lacustrine sediments was affected by climate variations. The predominant aridity was punctuated by very few humid episodes characterised by fresh-water gastropoda and the intercalations of muddy sediments. The high proportion of charcoal particles in some samples indicates periodic forest fires. Abundant non-pollen forest remains suggest that an open zone dominated by several types of grasses underwent a dry season during part of the year. The palynomorph associations found in the Jáchal River Valley Holocene lacustrine sediments suggest that the humid conditions were less intense than those in the San Juan River Valley located more than one hundred kilometres southwards. Our study suggests that lake formation could have been controlled by climate oscillation probably related to the ENSO variation at 30° south latitude.Fil: Colombo Piñol, Ferran. Universidad de Barcelona; EspañaFil: Busquets, Pere. Universidad de Barcelona; EspañaFil: Sole de Porta, Nuria. Universidad de Barcelona; EspañaFil: Limarino, Carlos Oscar. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Heredia, Nemesio. Instituto Geológico y Minero de España; España. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rodriguez Fernandez, Luis Roberto. Instituto Geológico y Minero de España; EspañaFil: Alvarez Marron, Joaquina. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias de la Tierra Jaume Almera; EspañaPergamon-Elsevier Science Ltd2009-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74272Colombo Piñol, Ferran; Busquets, Pere; Sole de Porta, Nuria; Limarino, Carlos Oscar; Heredia, Nemesio; et al.; Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 28; 3; 10-2009; 229-2380895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981109000431info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2009.03.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:36:08Zoai:ri.conicet.gov.ar:11336/74272instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982024-05-08 13:36:08.235CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina
title Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina
spellingShingle Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina
Colombo Piñol, Ferran
Argentina
Dating
Holocene
Lacustrine System
Palinology
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina
title_full Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina
title_fullStr Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina
title_full_unstemmed Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina
title_sort Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina
dc.creator.none.fl_str_mv Colombo Piñol, Ferran
Busquets, Pere
Sole de Porta, Nuria
Limarino, Carlos Oscar
Heredia, Nemesio
Rodriguez Fernandez, Luis Roberto
Alvarez Marron, Joaquina
author Colombo Piñol, Ferran
author_facet Colombo Piñol, Ferran
Busquets, Pere
Sole de Porta, Nuria
Limarino, Carlos Oscar
Heredia, Nemesio
Rodriguez Fernandez, Luis Roberto
Alvarez Marron, Joaquina
author_role author
author2 Busquets, Pere
Sole de Porta, Nuria
Limarino, Carlos Oscar
Heredia, Nemesio
Rodriguez Fernandez, Luis Roberto
Alvarez Marron, Joaquina
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Argentina
Dating
Holocene
Lacustrine System
Palinology
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic Argentina
Dating
Holocene
Lacustrine System
Palinology
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description The Jáchal River Valley displays a number of significant Holocene sedimentary accumulations made up of fine-grained materials. These deposits are interpreted as the sedimentary infill of shallow temporary lakes that were generated by slow growing episodes of alluvial fans that obstructed the Jáchal River Valley. The association of fossil remains through the Holocene sedimentary sequence suggests that the accumulation of lacustrine sediments was affected by climate variations. The predominant aridity was punctuated by very few humid episodes characterised by fresh-water gastropoda and the intercalations of muddy sediments. The high proportion of charcoal particles in some samples indicates periodic forest fires. Abundant non-pollen forest remains suggest that an open zone dominated by several types of grasses underwent a dry season during part of the year. The palynomorph associations found in the Jáchal River Valley Holocene lacustrine sediments suggest that the humid conditions were less intense than those in the San Juan River Valley located more than one hundred kilometres southwards. Our study suggests that lake formation could have been controlled by climate oscillation probably related to the ENSO variation at 30° south latitude.
publishDate 2009
dc.date.none.fl_str_mv 2009-10
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/11336/74272
Colombo Piñol, Ferran; Busquets, Pere; Sole de Porta, Nuria; Limarino, Carlos Oscar; Heredia, Nemesio; et al.; Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 28; 3; 10-2009; 229-238
0895-9811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/74272
identifier_str_mv Colombo Piñol, Ferran; Busquets, Pere; Sole de Porta, Nuria; Limarino, Carlos Oscar; Heredia, Nemesio; et al.; Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 28; 3; 10-2009; 229-238
0895-9811
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981109000431
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2009.03.002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 15.812455

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