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

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&...

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Autores principales: Rouzaut, Sabrina, Campodonico, Verena Agustina, Pasquini, Andrea Inés
Formato: Objeto de conferencia
Lenguaje:Español
Publicado: 2019
Materias:
Geología
weathering
paleoclimatic indices
corralito I sequence
Córdoba
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/77504
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-77504
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Geología
weathering
paleoclimatic indices
corralito I sequence
Córdoba
spellingShingle Geología
weathering
paleoclimatic indices
corralito I sequence
Córdoba
Rouzaut, Sabrina
Campodonico, Verena Agustina
Pasquini, Andrea Inés
Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
topic_facet Geología
weathering
paleoclimatic indices
corralito I sequence
Córdoba
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.
format Objeto de conferencia
Objeto de conferencia
author Rouzaut, Sabrina
Campodonico, Verena Agustina
Pasquini, Andrea Inés
author_facet Rouzaut, Sabrina
Campodonico, Verena Agustina
Pasquini, Andrea Inés
author_sort Rouzaut, Sabrina
title Geochemistry of a late quaternary loess-paleosol sequence in central Argentina
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
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/77504
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