Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes

Autores
Bucher, Joaquin; Varela, Augusto Nicolás; D'Elia, Leandro; Bilmes, Andrés; López, Manuel; García, Micaela Romina; Franzese, Juan Rafael
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Climate changes related to orographic barrier uplift have been in the research spotlight over recent years. Several works have focused on the interactions between climatic and tectonic processes in order to understand the development of a rain shadow. Patagonia is an ideal region in which to analyze such interactions, since a Miocene climate change, from wetter to drier conditions, has mainly been associated with Andean uplift. In this work, we analyzed a succession of stacked paleosols recorded in a Miocene North Patagonian foreland basin in order to understand how the paleosol moisture regime related to the atmospheric humidity changes caused by the uplift of the Patagonian Andes. Basedon macromorphological, micromorphological and geochemical studies, and supported by a high-resolution chronostratigraphic scheme based on U-Pb geochronology and magnetostratigraphy, the paleosols were characterized with corresponding mean annual paleoprecipitation (MAP) and mean annual temperature values. Alfisol-like paleosols were identified at the base of the foreland infill (15?14.6 Ma) with a MAP of 1229 ± 108 mm/yr. The Andisol-like paleosolsrecognized in the middle section of the sequence (14.6?12.75 Ma) exhibited a MAPof 1053 ± 108 mm/yr, whereas the Aridisollike paleosols occurring in the upper section of the infill (12.75?11.5 Ma) presented a MAP of 677 ± 108 mm/yr. The determined Miocene mean annual temperatures (∼11 ± 2.1 °C) were similar to the present-day values (11 °C). Based on the complete tectonic record of the Patagonian Andes, the observed decrease in MAP was assigned to the rain shadow effect created by the uplift of the North Patagonian Andes. Results indicate that although the process started around 19 Ma, the rain shadow effect was not effectively recorded before ca. 14.6 Ma.
Fil: Bucher, Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Varela, Augusto Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. YPF - Tecnología; Argentina
Fil: D'Elia, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Bilmes, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina
Fil: López, Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: García, Micaela Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Franzese, Juan Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Materia
PALAESOLS
RAIN SHADOW EFFECT
MIOCENE
ANDEAN UPLIFT
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:11336/94035
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/94035
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian AndesBucher, JoaquinVarela, Augusto NicolásD'Elia, LeandroBilmes, AndrésLópez, ManuelGarcía, Micaela RominaFranzese, Juan RafaelPALAESOLSRAIN SHADOW EFFECTMIOCENEANDEAN UPLIFThttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Climate changes related to orographic barrier uplift have been in the research spotlight over recent years. Several works have focused on the interactions between climatic and tectonic processes in order to understand the development of a rain shadow. Patagonia is an ideal region in which to analyze such interactions, since a Miocene climate change, from wetter to drier conditions, has mainly been associated with Andean uplift. In this work, we analyzed a succession of stacked paleosols recorded in a Miocene North Patagonian foreland basin in order to understand how the paleosol moisture regime related to the atmospheric humidity changes caused by the uplift of the Patagonian Andes. Basedon macromorphological, micromorphological and geochemical studies, and supported by a high-resolution chronostratigraphic scheme based on U-Pb geochronology and magnetostratigraphy, the paleosols were characterized with corresponding mean annual paleoprecipitation (MAP) and mean annual temperature values. Alfisol-like paleosols were identified at the base of the foreland infill (15?14.6 Ma) with a MAP of 1229 ± 108 mm/yr. The Andisol-like paleosolsrecognized in the middle section of the sequence (14.6?12.75 Ma) exhibited a MAPof 1053 ± 108 mm/yr, whereas the Aridisollike paleosols occurring in the upper section of the infill (12.75?11.5 Ma) presented a MAP of 677 ± 108 mm/yr. The determined Miocene mean annual temperatures (∼11 ± 2.1 °C) were similar to the present-day values (11 °C). Based on the complete tectonic record of the Patagonian Andes, the observed decrease in MAP was assigned to the rain shadow effect created by the uplift of the North Patagonian Andes. Results indicate that although the process started around 19 Ma, the rain shadow effect was not effectively recorded before ca. 14.6 Ma.Fil: Bucher, Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Varela, Augusto Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. YPF - Tecnología; ArgentinaFil: D'Elia, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Bilmes, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; ArgentinaFil: López, Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: García, Micaela Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Franzese, Juan Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaGeological Society of America2019-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94035Bucher, Joaquin; Varela, Augusto Nicolás; D'Elia, Leandro; Bilmes, Andrés; López, Manuel; et al.; Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes; Geological Society of America; Geological Society of America Bulletin; 10-2019; 1-121050-97470016-7606CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1130/B35331.1info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/gsa/gsabulletin/article/575963/Multiproxy-paleosol-evidence-for-a-rain-shadowinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:06:42Zoai:ri.conicet.gov.ar:11336/94035instacron: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:34982025-09-29 10:06:42.816CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes
title Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes
spellingShingle Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes
Bucher, Joaquin
PALAESOLS
RAIN SHADOW EFFECT
MIOCENE
ANDEAN UPLIFT
title_short Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes
title_full Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes
title_fullStr Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes
title_full_unstemmed Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes
title_sort Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes
dc.creator.none.fl_str_mv Bucher, Joaquin
Varela, Augusto Nicolás
D'Elia, Leandro
Bilmes, Andrés
López, Manuel
García, Micaela Romina
Franzese, Juan Rafael
author Bucher, Joaquin
author_facet Bucher, Joaquin
Varela, Augusto Nicolás
D'Elia, Leandro
Bilmes, Andrés
López, Manuel
García, Micaela Romina
Franzese, Juan Rafael
author_role author
author2 Varela, Augusto Nicolás
D'Elia, Leandro
Bilmes, Andrés
López, Manuel
García, Micaela Romina
Franzese, Juan Rafael
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv PALAESOLS
RAIN SHADOW EFFECT
MIOCENE
ANDEAN UPLIFT
topic PALAESOLS
RAIN SHADOW EFFECT
MIOCENE
ANDEAN UPLIFT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Climate changes related to orographic barrier uplift have been in the research spotlight over recent years. Several works have focused on the interactions between climatic and tectonic processes in order to understand the development of a rain shadow. Patagonia is an ideal region in which to analyze such interactions, since a Miocene climate change, from wetter to drier conditions, has mainly been associated with Andean uplift. In this work, we analyzed a succession of stacked paleosols recorded in a Miocene North Patagonian foreland basin in order to understand how the paleosol moisture regime related to the atmospheric humidity changes caused by the uplift of the Patagonian Andes. Basedon macromorphological, micromorphological and geochemical studies, and supported by a high-resolution chronostratigraphic scheme based on U-Pb geochronology and magnetostratigraphy, the paleosols were characterized with corresponding mean annual paleoprecipitation (MAP) and mean annual temperature values. Alfisol-like paleosols were identified at the base of the foreland infill (15?14.6 Ma) with a MAP of 1229 ± 108 mm/yr. The Andisol-like paleosolsrecognized in the middle section of the sequence (14.6?12.75 Ma) exhibited a MAPof 1053 ± 108 mm/yr, whereas the Aridisollike paleosols occurring in the upper section of the infill (12.75?11.5 Ma) presented a MAP of 677 ± 108 mm/yr. The determined Miocene mean annual temperatures (∼11 ± 2.1 °C) were similar to the present-day values (11 °C). Based on the complete tectonic record of the Patagonian Andes, the observed decrease in MAP was assigned to the rain shadow effect created by the uplift of the North Patagonian Andes. Results indicate that although the process started around 19 Ma, the rain shadow effect was not effectively recorded before ca. 14.6 Ma.
Fil: Bucher, Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Varela, Augusto Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. YPF - Tecnología; Argentina
Fil: D'Elia, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Bilmes, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina
Fil: López, Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: García, Micaela Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Franzese, Juan Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
description Climate changes related to orographic barrier uplift have been in the research spotlight over recent years. Several works have focused on the interactions between climatic and tectonic processes in order to understand the development of a rain shadow. Patagonia is an ideal region in which to analyze such interactions, since a Miocene climate change, from wetter to drier conditions, has mainly been associated with Andean uplift. In this work, we analyzed a succession of stacked paleosols recorded in a Miocene North Patagonian foreland basin in order to understand how the paleosol moisture regime related to the atmospheric humidity changes caused by the uplift of the Patagonian Andes. Basedon macromorphological, micromorphological and geochemical studies, and supported by a high-resolution chronostratigraphic scheme based on U-Pb geochronology and magnetostratigraphy, the paleosols were characterized with corresponding mean annual paleoprecipitation (MAP) and mean annual temperature values. Alfisol-like paleosols were identified at the base of the foreland infill (15?14.6 Ma) with a MAP of 1229 ± 108 mm/yr. The Andisol-like paleosolsrecognized in the middle section of the sequence (14.6?12.75 Ma) exhibited a MAPof 1053 ± 108 mm/yr, whereas the Aridisollike paleosols occurring in the upper section of the infill (12.75?11.5 Ma) presented a MAP of 677 ± 108 mm/yr. The determined Miocene mean annual temperatures (∼11 ± 2.1 °C) were similar to the present-day values (11 °C). Based on the complete tectonic record of the Patagonian Andes, the observed decrease in MAP was assigned to the rain shadow effect created by the uplift of the North Patagonian Andes. Results indicate that although the process started around 19 Ma, the rain shadow effect was not effectively recorded before ca. 14.6 Ma.
publishDate 2019
dc.date.none.fl_str_mv 2019-10
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/11336/94035
Bucher, Joaquin; Varela, Augusto Nicolás; D'Elia, Leandro; Bilmes, Andrés; López, Manuel; et al.; Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes; Geological Society of America; Geological Society of America Bulletin; 10-2019; 1-12
1050-9747
0016-7606
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94035
identifier_str_mv Bucher, Joaquin; Varela, Augusto Nicolás; D'Elia, Leandro; Bilmes, Andrés; López, Manuel; et al.; Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes; Geological Society of America; Geological Society of America Bulletin; 10-2019; 1-12
1050-9747
0016-7606
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1130/B35331.1
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/gsa/gsabulletin/article/575963/Multiproxy-paleosol-evidence-for-a-rain-shadow
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 Geological Society of America
publisher.none.fl_str_mv Geological Society of America
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
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score 13.070432

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