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dc.contributor.author
Colombo Piñol, Ferran
dc.contributor.author
Busquets, Pere
dc.contributor.author
Sole de Porta, Nuria
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Limarino, Carlos Oscar
dc.contributor.author
Heredia, Nemesio
dc.contributor.author
Rodriguez Fernandez, Luis Roberto
dc.contributor.author
Alvarez Marron, Joaquina
dc.date.available
2019-04-12T18:48:16Z
dc.date.issued
2009-10
dc.identifier.citation
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
dc.identifier.issn
0895-9811
dc.identifier.uri
http://hdl.handle.net/11336/74272
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Argentina
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Dating
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Holocene
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Lacustrine System
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Palinology
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Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Holocene intramontane lake development: A new model in the Jáchal River Valley, Andean Precordillera, San Juan, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-04-05T14:43:32Z
dc.journal.volume
28
dc.journal.number
3
dc.journal.pagination
229-238
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Colombo Piñol, Ferran. Universidad de Barcelona; España
dc.description.fil
Fil: Busquets, Pere. Universidad de Barcelona; España
dc.description.fil
Fil: Sole de Porta, Nuria. Universidad de Barcelona; España
dc.description.fil
Fil: Limarino, Carlos Oscar. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Heredia, Nemesio. Instituto Geológico y Minero de España; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Rodriguez Fernandez, Luis Roberto. Instituto Geológico y Minero de España; España
dc.description.fil
Fil: Alvarez Marron, Joaquina. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias de la Tierra Jaume Almera; España
dc.journal.title
Journal of South American Earth Sciences
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981109000431
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jsames.2009.03.002
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