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dc.contributor.author
Contreras, Silvina Andrea
dc.contributor.author
Zucol, Alejandro Fabián
dc.date.available
2019-09-13T20:59:35Z
dc.date.issued
2019-02
dc.identifier.citation
Contreras, Silvina Andrea; Zucol, Alejandro Fabián; Late Quaternary vegetation history based on phytolith records in the eastern Chaco (Argentina); Pergamon-Elsevier Science Ltd; Quaternary International; 505; 2-2019; 21-33
dc.identifier.issn
1040-6182
dc.identifier.uri
http://hdl.handle.net/11336/83595
dc.description.abstract
The Chaco plain is a sedimentary basin filled by alluvial fans repeatedly generated by large rivers during the late Quaternary under diverse climatic conditions. The Eastern Chaco is characterized by semi-deciduous forests intermingled with extensive palm-savannas, grasslands, and wetlands. These vegetation patterns of the Chaco have been proposed to be the result of the Pleistocene-Holocene alluvial dynamics of the plain as well as of the intensive migration of fluvial belts of the main rivers. In this paper we present silica microfossil records from a Pleistocene-Holocene sedimentary sequence from the Eastern Chaco Region. Results show that phytoliths were the most abundant elements compared to the other siliceous and non-siliceous microfossils. Differences in the microfossil associations suggest that climate changes along the Late Quaternary were given mainly by humidity changes, and that rivers migrated mostly during the Holocene. Grasslands and wetlands predominated in the described paleocommunities.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Bermejo River
dc.subject
Chaco Region
dc.subject
Pleistocene-Holocene Transition Environment
dc.subject
Silicophytoliths
dc.subject.classification
Paleontología
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Late Quaternary vegetation history based on phytolith records in the eastern Chaco (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
2019-08-01T20:11:04Z
dc.journal.volume
505
dc.journal.pagination
21-33
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Contreras, Silvina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
dc.description.fil
Fil: Zucol, Alejandro Fabián. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
dc.journal.title
Quaternary International
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.quaint.2018.03.002
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1040618217311412
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