Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)

Autores
Isla, Federico Ignacio; Espinosa, Marcela Alcira; Iantanos, Nerina Silvia
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Patagonia had significant morphological changes when moraines at the foot of the Andes caused reversals in the drainage of rivers that crossed flat plateaus. Several examples of such basins are known from evidences of misfit valleys and the activation of short watersheds with rapids. The Deseado River drained the second largest lake of South America (Buenos Aires-General Carrera) and another glacial-valley system. The Deseado-Pinturas system conducted large amounts of water that satisfied herds of guanacos; paleoindians established to take advantage of such a quantity of proteins favored by the configuration of gorges at the upper valley (Cueva de las Manos site). However, during the shrinking of the North Patagonian Ice Field, the Baker River activated capturing the drainage of both basins towards the Pacific Ocean. The deactivation of the Pinturas and Deseado systems caused the lowering of progressive younger fluvial terraces, a record of hanging tidal flats at the inlet, and a progressive abandonment of the Las Manos site. The Baker River today supplies large amounts of water for planned hydroelectric dams. However, the watershed has not arrived into morphological equilibrium and recently suffered several Glacial-lake outbursts floods (GLOFs).
Fil: Isla, Federico Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Espinosa, Marcela Alcira. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Iantanos, Nerina Silvia. Universidad Nacional de la Patagonia; Argentina
Materia
Drainage Reversals
Ice Fields
North Patagonian
Argentina
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:11336/46418
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/46418
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)Isla, Federico IgnacioEspinosa, Marcela AlciraIantanos, Nerina SilviaDrainage ReversalsIce FieldsNorth PatagonianArgentinahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Patagonia had significant morphological changes when moraines at the foot of the Andes caused reversals in the drainage of rivers that crossed flat plateaus. Several examples of such basins are known from evidences of misfit valleys and the activation of short watersheds with rapids. The Deseado River drained the second largest lake of South America (Buenos Aires-General Carrera) and another glacial-valley system. The Deseado-Pinturas system conducted large amounts of water that satisfied herds of guanacos; paleoindians established to take advantage of such a quantity of proteins favored by the configuration of gorges at the upper valley (Cueva de las Manos site). However, during the shrinking of the North Patagonian Ice Field, the Baker River activated capturing the drainage of both basins towards the Pacific Ocean. The deactivation of the Pinturas and Deseado systems caused the lowering of progressive younger fluvial terraces, a record of hanging tidal flats at the inlet, and a progressive abandonment of the Las Manos site. The Baker River today supplies large amounts of water for planned hydroelectric dams. However, the watershed has not arrived into morphological equilibrium and recently suffered several Glacial-lake outbursts floods (GLOFs).Fil: Isla, Federico Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Espinosa, Marcela Alcira. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Iantanos, Nerina Silvia. Universidad Nacional de la Patagonia; ArgentinaE Schweizerbartsche Verlags2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/46418Isla, Federico Ignacio; Espinosa, Marcela Alcira; Iantanos, Nerina Silvia; Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile) ; E Schweizerbartsche Verlags; Zeitschrift Fur Geomorphologie; 59; 1; 3-2015; 119-1310372-8854CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1127/0372-8854/2014/0149info:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/schweiz/zfg/2015/00000059/00000001/art00007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:13:40Zoai:ri.conicet.gov.ar:11336/46418instacron: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 10:13:40.717CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)
title Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)
spellingShingle Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)
Isla, Federico Ignacio
Drainage Reversals
Ice Fields
North Patagonian
Argentina
title_short Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)
title_full Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)
title_fullStr Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)
title_full_unstemmed Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)
title_sort Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile)
dc.creator.none.fl_str_mv Isla, Federico Ignacio
Espinosa, Marcela Alcira
Iantanos, Nerina Silvia
author Isla, Federico Ignacio
author_facet Isla, Federico Ignacio
Espinosa, Marcela Alcira
Iantanos, Nerina Silvia
author_role author
author2 Espinosa, Marcela Alcira
Iantanos, Nerina Silvia
author2_role author
author
dc.subject.none.fl_str_mv Drainage Reversals
Ice Fields
North Patagonian
Argentina
topic Drainage Reversals
Ice Fields
North Patagonian
Argentina
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Patagonia had significant morphological changes when moraines at the foot of the Andes caused reversals in the drainage of rivers that crossed flat plateaus. Several examples of such basins are known from evidences of misfit valleys and the activation of short watersheds with rapids. The Deseado River drained the second largest lake of South America (Buenos Aires-General Carrera) and another glacial-valley system. The Deseado-Pinturas system conducted large amounts of water that satisfied herds of guanacos; paleoindians established to take advantage of such a quantity of proteins favored by the configuration of gorges at the upper valley (Cueva de las Manos site). However, during the shrinking of the North Patagonian Ice Field, the Baker River activated capturing the drainage of both basins towards the Pacific Ocean. The deactivation of the Pinturas and Deseado systems caused the lowering of progressive younger fluvial terraces, a record of hanging tidal flats at the inlet, and a progressive abandonment of the Las Manos site. The Baker River today supplies large amounts of water for planned hydroelectric dams. However, the watershed has not arrived into morphological equilibrium and recently suffered several Glacial-lake outbursts floods (GLOFs).
Fil: Isla, Federico Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Espinosa, Marcela Alcira. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Iantanos, Nerina Silvia. Universidad Nacional de la Patagonia; Argentina
description Patagonia had significant morphological changes when moraines at the foot of the Andes caused reversals in the drainage of rivers that crossed flat plateaus. Several examples of such basins are known from evidences of misfit valleys and the activation of short watersheds with rapids. The Deseado River drained the second largest lake of South America (Buenos Aires-General Carrera) and another glacial-valley system. The Deseado-Pinturas system conducted large amounts of water that satisfied herds of guanacos; paleoindians established to take advantage of such a quantity of proteins favored by the configuration of gorges at the upper valley (Cueva de las Manos site). However, during the shrinking of the North Patagonian Ice Field, the Baker River activated capturing the drainage of both basins towards the Pacific Ocean. The deactivation of the Pinturas and Deseado systems caused the lowering of progressive younger fluvial terraces, a record of hanging tidal flats at the inlet, and a progressive abandonment of the Las Manos site. The Baker River today supplies large amounts of water for planned hydroelectric dams. However, the watershed has not arrived into morphological equilibrium and recently suffered several Glacial-lake outbursts floods (GLOFs).
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/46418
Isla, Federico Ignacio; Espinosa, Marcela Alcira; Iantanos, Nerina Silvia; Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile) ; E Schweizerbartsche Verlags; Zeitschrift Fur Geomorphologie; 59; 1; 3-2015; 119-131
0372-8854
CONICET Digital
CONICET
url http://hdl.handle.net/11336/46418
identifier_str_mv Isla, Federico Ignacio; Espinosa, Marcela Alcira; Iantanos, Nerina Silvia; Evolution of the Eastern flank of the North Patagonian Ice Field: The deactivation of the Deseado River (Argentina) and the activation of the Baker River (Chile) ; E Schweizerbartsche Verlags; Zeitschrift Fur Geomorphologie; 59; 1; 3-2015; 119-131
0372-8854
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1127/0372-8854/2014/0149
info:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/schweiz/zfg/2015/00000059/00000001/art00007
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
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score 13.070432

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