Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene

Autores
Sayago, Jose Manuel; Zinck, J.; Collantes, Mirian Mabel; Toledo, M.
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Thick loess deposits interbedded with paleosols in the intermountain valleys of Tafí (Tucumán province) and Balcozna (Catamarca province) in north-western Argentina were assigned to late Pleistocene age on the basis of radiocarbon, biostratigraphic and soil evidence. The mechanisms of loess transport and soil formation are related to recurrent northward shifts of the polar front, with a temporal frequency that is in phase with the Dansgaard-Oerscher cycles. In the western Chaco plain, paleosol sequences developed during the Holocene show a general coincidence with the cold periods of glaciochemical increase detected in the Greenland GISP2 ice core. Moreover, the Greenland cold events also parallel the Holocene glacial advances in the southern Patagonian Andes. In conclusion, the regional pattern of loess-paleosol sequences developed in the subtropical pre-Andean valleys and in the western Chaco plain of northwest Argentina during Late Pleistocene and Holocene suggests that the perturbations affecting air and ocean circulation over the North Atlantic might have also influenced the climatic conditions in sub-tropical South America. © 2005 E. Schweizerbart'sche Verlagsbuchhandlung.
Fil: Sayago, Jose Manuel. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Geociencias y Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Zinck, J.. Universidad Nacional de Tucumán; Argentina
Fil: Collantes, Mirian Mabel. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Geociencias y Medio Ambiente; Argentina
Fil: Toledo, M.. Fundación Miguel Lillo; Argentina
Materia
DANSGAARD-OERSCHER CYCLES
HOLOCENE COLD PERIODS
LOESS-PALEOSOLS
PALEOCLIMATIC CYCLICITY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/100861
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/100861
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and HoloceneSayago, Jose ManuelZinck, J.Collantes, Mirian MabelToledo, M.DANSGAARD-OERSCHER CYCLESHOLOCENE COLD PERIODSLOESS-PALEOSOLSPALEOCLIMATIC CYCLICITYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Thick loess deposits interbedded with paleosols in the intermountain valleys of Tafí (Tucumán province) and Balcozna (Catamarca province) in north-western Argentina were assigned to late Pleistocene age on the basis of radiocarbon, biostratigraphic and soil evidence. The mechanisms of loess transport and soil formation are related to recurrent northward shifts of the polar front, with a temporal frequency that is in phase with the Dansgaard-Oerscher cycles. In the western Chaco plain, paleosol sequences developed during the Holocene show a general coincidence with the cold periods of glaciochemical increase detected in the Greenland GISP2 ice core. Moreover, the Greenland cold events also parallel the Holocene glacial advances in the southern Patagonian Andes. In conclusion, the regional pattern of loess-paleosol sequences developed in the subtropical pre-Andean valleys and in the western Chaco plain of northwest Argentina during Late Pleistocene and Holocene suggests that the perturbations affecting air and ocean circulation over the North Atlantic might have also influenced the climatic conditions in sub-tropical South America. © 2005 E. Schweizerbart'sche Verlagsbuchhandlung.Fil: Sayago, Jose Manuel. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Geociencias y Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; ArgentinaFil: Zinck, J.. Universidad Nacional de Tucumán; ArgentinaFil: Collantes, Mirian Mabel. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Geociencias y Medio Ambiente; ArgentinaFil: Toledo, M.. Fundación Miguel Lillo; ArgentinaE Schweizerbartsche Verlags2005-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/100861Sayago, Jose Manuel; Zinck, J.; Collantes, Mirian Mabel; Toledo, M.; Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene; E Schweizerbartsche Verlags; Neues Jahrbuch für Geologie und Palaontologie - Abhandlungen; 236; 1-2; 8-2005; 245-2650077-7749CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1127/njgpa/236/2005/245info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/shop/cart/add?artno=155023601012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:27Zoai:ri.conicet.gov.ar:11336/100861instacron: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:34982025-09-03 09:53:27.321CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene
title Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene
spellingShingle Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene
Sayago, Jose Manuel
DANSGAARD-OERSCHER CYCLES
HOLOCENE COLD PERIODS
LOESS-PALEOSOLS
PALEOCLIMATIC CYCLICITY
title_short Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene
title_full Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene
title_fullStr Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene
title_full_unstemmed Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene
title_sort Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene
dc.creator.none.fl_str_mv Sayago, Jose Manuel
Zinck, J.
Collantes, Mirian Mabel
Toledo, M.
author Sayago, Jose Manuel
author_facet Sayago, Jose Manuel
Zinck, J.
Collantes, Mirian Mabel
Toledo, M.
author_role author
author2 Zinck, J.
Collantes, Mirian Mabel
Toledo, M.
author2_role author
author
author
dc.subject.none.fl_str_mv DANSGAARD-OERSCHER CYCLES
HOLOCENE COLD PERIODS
LOESS-PALEOSOLS
PALEOCLIMATIC CYCLICITY
topic DANSGAARD-OERSCHER CYCLES
HOLOCENE COLD PERIODS
LOESS-PALEOSOLS
PALEOCLIMATIC CYCLICITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Thick loess deposits interbedded with paleosols in the intermountain valleys of Tafí (Tucumán province) and Balcozna (Catamarca province) in north-western Argentina were assigned to late Pleistocene age on the basis of radiocarbon, biostratigraphic and soil evidence. The mechanisms of loess transport and soil formation are related to recurrent northward shifts of the polar front, with a temporal frequency that is in phase with the Dansgaard-Oerscher cycles. In the western Chaco plain, paleosol sequences developed during the Holocene show a general coincidence with the cold periods of glaciochemical increase detected in the Greenland GISP2 ice core. Moreover, the Greenland cold events also parallel the Holocene glacial advances in the southern Patagonian Andes. In conclusion, the regional pattern of loess-paleosol sequences developed in the subtropical pre-Andean valleys and in the western Chaco plain of northwest Argentina during Late Pleistocene and Holocene suggests that the perturbations affecting air and ocean circulation over the North Atlantic might have also influenced the climatic conditions in sub-tropical South America. © 2005 E. Schweizerbart'sche Verlagsbuchhandlung.
Fil: Sayago, Jose Manuel. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Geociencias y Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentina
Fil: Zinck, J.. Universidad Nacional de Tucumán; Argentina
Fil: Collantes, Mirian Mabel. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Geociencias y Medio Ambiente; Argentina
Fil: Toledo, M.. Fundación Miguel Lillo; Argentina
description Thick loess deposits interbedded with paleosols in the intermountain valleys of Tafí (Tucumán province) and Balcozna (Catamarca province) in north-western Argentina were assigned to late Pleistocene age on the basis of radiocarbon, biostratigraphic and soil evidence. The mechanisms of loess transport and soil formation are related to recurrent northward shifts of the polar front, with a temporal frequency that is in phase with the Dansgaard-Oerscher cycles. In the western Chaco plain, paleosol sequences developed during the Holocene show a general coincidence with the cold periods of glaciochemical increase detected in the Greenland GISP2 ice core. Moreover, the Greenland cold events also parallel the Holocene glacial advances in the southern Patagonian Andes. In conclusion, the regional pattern of loess-paleosol sequences developed in the subtropical pre-Andean valleys and in the western Chaco plain of northwest Argentina during Late Pleistocene and Holocene suggests that the perturbations affecting air and ocean circulation over the North Atlantic might have also influenced the climatic conditions in sub-tropical South America. © 2005 E. Schweizerbart'sche Verlagsbuchhandlung.
publishDate 2005
dc.date.none.fl_str_mv 2005-08
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/11336/100861
Sayago, Jose Manuel; Zinck, J.; Collantes, Mirian Mabel; Toledo, M.; Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene; E Schweizerbartsche Verlags; Neues Jahrbuch für Geologie und Palaontologie - Abhandlungen; 236; 1-2; 8-2005; 245-265
0077-7749
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100861
identifier_str_mv Sayago, Jose Manuel; Zinck, J.; Collantes, Mirian Mabel; Toledo, M.; Environmental changes in the pre-Andean valleys and Chaco Plain (Northwest Argentina) during the Late Pleistocene and Holocene; E Schweizerbartsche Verlags; Neues Jahrbuch für Geologie und Palaontologie - Abhandlungen; 236; 1-2; 8-2005; 245-265
0077-7749
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1127/njgpa/236/2005/245
info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/shop/cart/add?artno=155023601012
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv E Schweizerbartsche Verlags
publisher.none.fl_str_mv E Schweizerbartsche Verlags
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
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
_version_ 1842269225895329792
score 13.13397

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