Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile

Autores
Franco, C.; Maldonado, Antonio; Ohlendorf, C.; Gebhardt, A. Catalina; de Porras, Maria Eugenia; Nuevo Delaunay, Amalia; Méndez, César; Vogt, Christoph; Zolitschka, Bernd
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Central west Patagonia is directly exposed to influence of the Southern Westerly Winds (SWW). Its position relative to the core of this major wind system makes this region highly susceptible to magnitude and latitudinal changes of the SWW. Moreover, the pronounced topography defines a strong west-east moisture gradient. We present an environmental reconstruction derived from sediments of Laguna Vogt, a lake located in one of the easternmost valleys of central west Patagonia. Our reconstruction shows that increased runoff triggered the remobilization of basaltic material, while lacustrine production remained low between 1600-1300 and 1000-750 cal yr BP. Between 1300-1000 and 750-250 cal yr BP, these conditions changed to decreased surface runoff, with less clastic input favoring high autochthonous sedimentation, while several episodes of flooding occurred. Our findings indicate that intervals of enhanced runoff at Laguna Vogt correlate with a regional period of increased precipitation, which started to decline around 800 cal yr BP. Climate reconstructions suggest that increased precipitation was a direct result of intensified SWW. Thus, periods of high lacustrine productivity interspersed with episodes of intense flooding are interpreted as shifts between wet-cold and dry-warm conditions occurring on decadal to multidecadal timescales. Around 250 cal yr BP, fluvial detrital input into the lake became dominant, suggesting the establishment of wetter conditions. This increase in precipitation, also documented by other sediment records from central west Patagonia, is associated with intensified SWW. Such a timing compares well with multiple regional glacial advances, indicating an environmental shift likely associated to the last glacial stage of the Holocene.
Fil: Franco, C.. Universitat de Bremen; Alemania
Fil: Maldonado, Antonio. Comisión Nacional de Investigación Científica y Tecnológica. Centro de Investigación Regional. Centro de Estudios en Zonas Áridas; Chile
Fil: Ohlendorf, C.. Universitat de Bremen; Alemania
Fil: Gebhardt, A. Catalina. Universitat de Bremen; Alemania
Fil: de Porras, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Nuevo Delaunay, Amalia. No especifíca;
Fil: Méndez, César. Pontificia Universidad Católica de Chile; Chile
Fil: Vogt, Christoph. Universitat Bremen; Alemania
Fil: Zolitschka, Bernd. Universitat Bremen; Alemania
Materia
PALEOCLIMATE
XRF
CORE SCANNING
LAKE SEDIMENTS
LATE HOLOCENE
LITTLE ICE AGE
SOUTHERN WESTERLY WINDS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/280902
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/280902
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, ChileFranco, C.Maldonado, AntonioOhlendorf, C.Gebhardt, A. Catalinade Porras, Maria EugeniaNuevo Delaunay, AmaliaMéndez, CésarVogt, ChristophZolitschka, BerndPALEOCLIMATEXRFCORE SCANNINGLAKE SEDIMENTSLATE HOLOCENELITTLE ICE AGESOUTHERN WESTERLY WINDShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Central west Patagonia is directly exposed to influence of the Southern Westerly Winds (SWW). Its position relative to the core of this major wind system makes this region highly susceptible to magnitude and latitudinal changes of the SWW. Moreover, the pronounced topography defines a strong west-east moisture gradient. We present an environmental reconstruction derived from sediments of Laguna Vogt, a lake located in one of the easternmost valleys of central west Patagonia. Our reconstruction shows that increased runoff triggered the remobilization of basaltic material, while lacustrine production remained low between 1600-1300 and 1000-750 cal yr BP. Between 1300-1000 and 750-250 cal yr BP, these conditions changed to decreased surface runoff, with less clastic input favoring high autochthonous sedimentation, while several episodes of flooding occurred. Our findings indicate that intervals of enhanced runoff at Laguna Vogt correlate with a regional period of increased precipitation, which started to decline around 800 cal yr BP. Climate reconstructions suggest that increased precipitation was a direct result of intensified SWW. Thus, periods of high lacustrine productivity interspersed with episodes of intense flooding are interpreted as shifts between wet-cold and dry-warm conditions occurring on decadal to multidecadal timescales. Around 250 cal yr BP, fluvial detrital input into the lake became dominant, suggesting the establishment of wetter conditions. This increase in precipitation, also documented by other sediment records from central west Patagonia, is associated with intensified SWW. Such a timing compares well with multiple regional glacial advances, indicating an environmental shift likely associated to the last glacial stage of the Holocene.Fil: Franco, C.. Universitat de Bremen; AlemaniaFil: Maldonado, Antonio. Comisión Nacional de Investigación Científica y Tecnológica. Centro de Investigación Regional. Centro de Estudios en Zonas Áridas; ChileFil: Ohlendorf, C.. Universitat de Bremen; AlemaniaFil: Gebhardt, A. Catalina. Universitat de Bremen; AlemaniaFil: de Porras, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Nuevo Delaunay, Amalia. No especifíca;Fil: Méndez, César. Pontificia Universidad Católica de Chile; ChileFil: Vogt, Christoph. Universitat Bremen; AlemaniaFil: Zolitschka, Bernd. Universitat Bremen; AlemaniaPergamon-Elsevier Science Ltd2025-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/280902Franco, C.; Maldonado, Antonio; Ohlendorf, C.; Gebhardt, A. Catalina; de Porras, Maria Eugenia; et al.; Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile; Pergamon-Elsevier Science Ltd; Quaternary Science Reviews; 360; 5-2025; 1-190277-3791CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0277379125002124?via%3Dihubinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2025.109392info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-06T13:15:25Zoai:ri.conicet.gov.ar:11336/280902instacron: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:34982026-02-06 13:15:25.297CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile
title Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile
spellingShingle Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile
Franco, C.
PALEOCLIMATE
XRF
CORE SCANNING
LAKE SEDIMENTS
LATE HOLOCENE
LITTLE ICE AGE
SOUTHERN WESTERLY WINDS
title_short Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile
title_full Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile
title_fullStr Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile
title_full_unstemmed Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile
title_sort Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile
dc.creator.none.fl_str_mv Franco, C.
Maldonado, Antonio
Ohlendorf, C.
Gebhardt, A. Catalina
de Porras, Maria Eugenia
Nuevo Delaunay, Amalia
Méndez, César
Vogt, Christoph
Zolitschka, Bernd
author Franco, C.
author_facet Franco, C.
Maldonado, Antonio
Ohlendorf, C.
Gebhardt, A. Catalina
de Porras, Maria Eugenia
Nuevo Delaunay, Amalia
Méndez, César
Vogt, Christoph
Zolitschka, Bernd
author_role author
author2 Maldonado, Antonio
Ohlendorf, C.
Gebhardt, A. Catalina
de Porras, Maria Eugenia
Nuevo Delaunay, Amalia
Méndez, César
Vogt, Christoph
Zolitschka, Bernd
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv PALEOCLIMATE
XRF
CORE SCANNING
LAKE SEDIMENTS
LATE HOLOCENE
LITTLE ICE AGE
SOUTHERN WESTERLY WINDS
topic PALEOCLIMATE
XRF
CORE SCANNING
LAKE SEDIMENTS
LATE HOLOCENE
LITTLE ICE AGE
SOUTHERN WESTERLY WINDS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Central west Patagonia is directly exposed to influence of the Southern Westerly Winds (SWW). Its position relative to the core of this major wind system makes this region highly susceptible to magnitude and latitudinal changes of the SWW. Moreover, the pronounced topography defines a strong west-east moisture gradient. We present an environmental reconstruction derived from sediments of Laguna Vogt, a lake located in one of the easternmost valleys of central west Patagonia. Our reconstruction shows that increased runoff triggered the remobilization of basaltic material, while lacustrine production remained low between 1600-1300 and 1000-750 cal yr BP. Between 1300-1000 and 750-250 cal yr BP, these conditions changed to decreased surface runoff, with less clastic input favoring high autochthonous sedimentation, while several episodes of flooding occurred. Our findings indicate that intervals of enhanced runoff at Laguna Vogt correlate with a regional period of increased precipitation, which started to decline around 800 cal yr BP. Climate reconstructions suggest that increased precipitation was a direct result of intensified SWW. Thus, periods of high lacustrine productivity interspersed with episodes of intense flooding are interpreted as shifts between wet-cold and dry-warm conditions occurring on decadal to multidecadal timescales. Around 250 cal yr BP, fluvial detrital input into the lake became dominant, suggesting the establishment of wetter conditions. This increase in precipitation, also documented by other sediment records from central west Patagonia, is associated with intensified SWW. Such a timing compares well with multiple regional glacial advances, indicating an environmental shift likely associated to the last glacial stage of the Holocene.
Fil: Franco, C.. Universitat de Bremen; Alemania
Fil: Maldonado, Antonio. Comisión Nacional de Investigación Científica y Tecnológica. Centro de Investigación Regional. Centro de Estudios en Zonas Áridas; Chile
Fil: Ohlendorf, C.. Universitat de Bremen; Alemania
Fil: Gebhardt, A. Catalina. Universitat de Bremen; Alemania
Fil: de Porras, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Nuevo Delaunay, Amalia. No especifíca;
Fil: Méndez, César. Pontificia Universidad Católica de Chile; Chile
Fil: Vogt, Christoph. Universitat Bremen; Alemania
Fil: Zolitschka, Bernd. Universitat Bremen; Alemania
description Central west Patagonia is directly exposed to influence of the Southern Westerly Winds (SWW). Its position relative to the core of this major wind system makes this region highly susceptible to magnitude and latitudinal changes of the SWW. Moreover, the pronounced topography defines a strong west-east moisture gradient. We present an environmental reconstruction derived from sediments of Laguna Vogt, a lake located in one of the easternmost valleys of central west Patagonia. Our reconstruction shows that increased runoff triggered the remobilization of basaltic material, while lacustrine production remained low between 1600-1300 and 1000-750 cal yr BP. Between 1300-1000 and 750-250 cal yr BP, these conditions changed to decreased surface runoff, with less clastic input favoring high autochthonous sedimentation, while several episodes of flooding occurred. Our findings indicate that intervals of enhanced runoff at Laguna Vogt correlate with a regional period of increased precipitation, which started to decline around 800 cal yr BP. Climate reconstructions suggest that increased precipitation was a direct result of intensified SWW. Thus, periods of high lacustrine productivity interspersed with episodes of intense flooding are interpreted as shifts between wet-cold and dry-warm conditions occurring on decadal to multidecadal timescales. Around 250 cal yr BP, fluvial detrital input into the lake became dominant, suggesting the establishment of wetter conditions. This increase in precipitation, also documented by other sediment records from central west Patagonia, is associated with intensified SWW. Such a timing compares well with multiple regional glacial advances, indicating an environmental shift likely associated to the last glacial stage of the Holocene.
publishDate 2025
dc.date.none.fl_str_mv 2025-05
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/11336/280902
Franco, C.; Maldonado, Antonio; Ohlendorf, C.; Gebhardt, A. Catalina; de Porras, Maria Eugenia; et al.; Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile; Pergamon-Elsevier Science Ltd; Quaternary Science Reviews; 360; 5-2025; 1-19
0277-3791
CONICET Digital
CONICET
url http://hdl.handle.net/11336/280902
identifier_str_mv Franco, C.; Maldonado, Antonio; Ohlendorf, C.; Gebhardt, A. Catalina; de Porras, Maria Eugenia; et al.; Environmental variability of the last 1600 years derived from a multiproxy lake record of the east Andean margin (46.7°S), central west Patagonia, Chile; Pergamon-Elsevier Science Ltd; Quaternary Science Reviews; 360; 5-2025; 1-19
0277-3791
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0277379125002124?via%3Dihub
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2025.109392
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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 13.106097

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