Geochemistry of a late quaternary loess-paleosol sequence in central Argentina

Autores
Rouzaut, Sabrina; Campodonico, Verena Agustina; Pasquini, Andrea Inés
Año de publicación
2019
Idioma
español castellano
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
A loess-paleosol sequence in central Argentina was geochemically analyzed. Corralito I sequence (32°00‘7” S, 64°11’08” W, 469 m a.s.l) is composed by three paleosols and a buried soil separated by loess layers. Weathering indices (CIA, CIW, LWI), elemental ratios (ΣBases/Al2O3, Rb/Sr, CaO/TiO2, Na2O/TiO2), and mean annual paleo-precipitation indices (MAPPs) were calculated in order to obtain a weathering insight and to probe geochemical paleoclimatic proxies. The results indicate an incipient weathering degree throughout the sequence, without significant geochemical differences between paleosols and the loess mantles. Moreover, geochemical paleoclimatic proxies (MAPPs) do not detect a significant paleoprecipitation variability for the time period recorded in the studied loess-paleosol sequence.
Centro de Investigaciones Geológicas
Materia
Geología
weathering
paleoclimatic indices
corralito I sequence
Córdoba
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/77504
Acceder
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network_name_str SEDICI (UNLP)
spelling Geochemistry of a late quaternary loess-paleosol sequence in central ArgentinaGeoquímica de una secuencia de loess-paleosuelos del cuaternario tardío en el centro de ArgentinaRouzaut, SabrinaCampodonico, Verena AgustinaPasquini, Andrea InésGeologíaweatheringpaleoclimatic indicescorralito I sequenceCórdobaA loess-paleosol sequence in central Argentina was geochemically analyzed. Corralito I sequence (32°00‘7” S, 64°11’08” W, 469 m a.s.l) is composed by three paleosols and a buried soil separated by loess layers. Weathering indices (CIA, CIW, LWI), elemental ratios (ΣBases/Al<SUB>2</SUB>O<SUB>3</SUB>, Rb/Sr, CaO/TiO<SUB>2</SUB>, Na<SUB>2</SUB>O/TiO<SUB>2</SUB>), and mean annual paleo-precipitation indices (MAPPs) were calculated in order to obtain a weathering insight and to probe geochemical paleoclimatic proxies. The results indicate an incipient weathering degree throughout the sequence, without significant geochemical differences between paleosols and the loess mantles. Moreover, geochemical paleoclimatic proxies (MAPPs) do not detect a significant paleoprecipitation variability for the time period recorded in the studied loess-paleosol sequence.Centro de Investigaciones Geológicas2019-06info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf158-161http://sedici.unlp.edu.ar/handle/10915/77504spainfo:eu-repo/semantics/altIdentifier/isbn/978-987-96296-7-3info:eu-repo/semantics/reference/hdl/10915/77067info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:45:55Zoai:sedici.unlp.edu.ar:10915/77504Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:45:55.662SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
Geoquímica de una secuencia de loess-paleosuelos del cuaternario tardío en el centro de Argentina
title Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
spellingShingle Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
Rouzaut, Sabrina
Geología
weathering
paleoclimatic indices
corralito I sequence
Córdoba
title_short Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
title_full Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
title_fullStr Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
title_full_unstemmed Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
title_sort Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
dc.creator.none.fl_str_mv Rouzaut, Sabrina
Campodonico, Verena Agustina
Pasquini, Andrea Inés
author Rouzaut, Sabrina
author_facet Rouzaut, Sabrina
Campodonico, Verena Agustina
Pasquini, Andrea Inés
author_role author
author2 Campodonico, Verena Agustina
Pasquini, Andrea Inés
author2_role author
author
dc.subject.none.fl_str_mv Geología
weathering
paleoclimatic indices
corralito I sequence
Córdoba
topic Geología
weathering
paleoclimatic indices
corralito I sequence
Córdoba
dc.description.none.fl_txt_mv A loess-paleosol sequence in central Argentina was geochemically analyzed. Corralito I sequence (32°00‘7” S, 64°11’08” W, 469 m a.s.l) is composed by three paleosols and a buried soil separated by loess layers. Weathering indices (CIA, CIW, LWI), elemental ratios (ΣBases/Al<SUB>2</SUB>O<SUB>3</SUB>, Rb/Sr, CaO/TiO<SUB>2</SUB>, Na<SUB>2</SUB>O/TiO<SUB>2</SUB>), and mean annual paleo-precipitation indices (MAPPs) were calculated in order to obtain a weathering insight and to probe geochemical paleoclimatic proxies. The results indicate an incipient weathering degree throughout the sequence, without significant geochemical differences between paleosols and the loess mantles. Moreover, geochemical paleoclimatic proxies (MAPPs) do not detect a significant paleoprecipitation variability for the time period recorded in the studied loess-paleosol sequence.
Centro de Investigaciones Geológicas
description A loess-paleosol sequence in central Argentina was geochemically analyzed. Corralito I sequence (32°00‘7” S, 64°11’08” W, 469 m a.s.l) is composed by three paleosols and a buried soil separated by loess layers. Weathering indices (CIA, CIW, LWI), elemental ratios (ΣBases/Al<SUB>2</SUB>O<SUB>3</SUB>, Rb/Sr, CaO/TiO<SUB>2</SUB>, Na<SUB>2</SUB>O/TiO<SUB>2</SUB>), and mean annual paleo-precipitation indices (MAPPs) were calculated in order to obtain a weathering insight and to probe geochemical paleoclimatic proxies. The results indicate an incipient weathering degree throughout the sequence, without significant geochemical differences between paleosols and the loess mantles. Moreover, geochemical paleoclimatic proxies (MAPPs) do not detect a significant paleoprecipitation variability for the time period recorded in the studied loess-paleosol sequence.
publishDate 2019
dc.date.none.fl_str_mv 2019-06
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
Objeto de conferencia
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/77504
url http://sedici.unlp.edu.ar/handle/10915/77504
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/isbn/978-987-96296-7-3
info:eu-repo/semantics/reference/hdl/10915/77067
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
158-161
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instname:Universidad Nacional de La Plata
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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