Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas

Autores
González Díaz, E.F.; di Tommaso, I.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The region is situated in the Neuquén Cordillera at 38° 30'S latitud close to the international border. Geomorphic and structural features are presented which indicated a glacial morphogenesis for the depression that contains the Moquehue- Aluminé lakes. Previous works have identified a large volcanic complex related to Plio-Quaternary volcanic activity located at the east of the present volcanic arc. In this sector various caldera depressions and associated domic bodies have been identified. From the nine proposed calderas only the Pino Hachado caldera has been studied in detail. The Meseta del Arco and Nacimientos del Aluminé are disregarded as calderas. The erosional genesis of the steep scarps previously interpreted as caldera margins is also identified with glacial erosion. Facies and types of the local Pleistocene glaciation, its extension, their flow direction and its quite probable diffluence (Paso del Arco) through coeval glaciers situated north of the international border are also analyzed. Local characteristics of volcanic and eolian morphogenic and the mass-wasting process are described. Brief comments about pre-glacial drainage and the previous proposal of Bío Bío-Aluminé trough on the region are added. Transversal topographic-geological profiles discard west of the Bío Bío-Aluminé Fault a structural unit related to tectonic depression of Bío Bío-Aluminé trough and the Nacimientos del Aluminé and Moquehue calderas.
Fil:di Tommaso, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Rev. Asoc. Geol. Argent. 2010;66(3):438-451
Materia
Calderas
Glacial difluence
Glaciation
Moquehue-Aluminé lakes
caldera
cordillera
facies
geomorphology
glacial erosion
glaciation
glacier
island arc
lake
morphogenesis
trough
volcanism
Argentina
Neuquen
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_00044822_v66_n3_p438_GonzalezDiaz
Acceder
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oai_identifier_str paperaa:paper_00044822_v66_n3_p438_GonzalezDiaz
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas González Díaz, E.F.di Tommaso, I.CalderasGlacial difluenceGlaciationMoquehue-Aluminé lakescalderacordillerafaciesgeomorphologyglacial erosionglaciationglacierisland arclakemorphogenesistroughvolcanismArgentinaNeuquenThe region is situated in the Neuquén Cordillera at 38° 30'S latitud close to the international border. Geomorphic and structural features are presented which indicated a glacial morphogenesis for the depression that contains the Moquehue- Aluminé lakes. Previous works have identified a large volcanic complex related to Plio-Quaternary volcanic activity located at the east of the present volcanic arc. In this sector various caldera depressions and associated domic bodies have been identified. From the nine proposed calderas only the Pino Hachado caldera has been studied in detail. The Meseta del Arco and Nacimientos del Aluminé are disregarded as calderas. The erosional genesis of the steep scarps previously interpreted as caldera margins is also identified with glacial erosion. Facies and types of the local Pleistocene glaciation, its extension, their flow direction and its quite probable diffluence (Paso del Arco) through coeval glaciers situated north of the international border are also analyzed. Local characteristics of volcanic and eolian morphogenic and the mass-wasting process are described. Brief comments about pre-glacial drainage and the previous proposal of Bío Bío-Aluminé trough on the region are added. Transversal topographic-geological profiles discard west of the Bío Bío-Aluminé Fault a structural unit related to tectonic depression of Bío Bío-Aluminé trough and the Nacimientos del Aluminé and Moquehue calderas.Fil:di Tommaso, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00044822_v66_n3_p438_GonzalezDiazRev. Asoc. Geol. Argent. 2010;66(3):438-451reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-10-23T11:18:34Zpaperaa:paper_00044822_v66_n3_p438_GonzalezDiazInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-10-23 11:18:35.747Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas
title Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas
spellingShingle Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas
González Díaz, E.F.
Calderas
Glacial difluence
Glaciation
Moquehue-Aluminé lakes
caldera
cordillera
facies
geomorphology
glacial erosion
glaciation
glacier
island arc
lake
morphogenesis
trough
volcanism
Argentina
Neuquen
title_short Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas
title_full Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas
title_fullStr Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas
title_full_unstemmed Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas
title_sort Geomorphology of the Moquehue and Aluminé Lakes: Considerations about the Meseta del Arco and Nacimientos del Aluminé calderas
dc.creator.none.fl_str_mv González Díaz, E.F.
di Tommaso, I.
author González Díaz, E.F.
author_facet González Díaz, E.F.
di Tommaso, I.
author_role author
author2 di Tommaso, I.
author2_role author
dc.subject.none.fl_str_mv Calderas
Glacial difluence
Glaciation
Moquehue-Aluminé lakes
caldera
cordillera
facies
geomorphology
glacial erosion
glaciation
glacier
island arc
lake
morphogenesis
trough
volcanism
Argentina
Neuquen
topic Calderas
Glacial difluence
Glaciation
Moquehue-Aluminé lakes
caldera
cordillera
facies
geomorphology
glacial erosion
glaciation
glacier
island arc
lake
morphogenesis
trough
volcanism
Argentina
Neuquen
dc.description.none.fl_txt_mv The region is situated in the Neuquén Cordillera at 38° 30'S latitud close to the international border. Geomorphic and structural features are presented which indicated a glacial morphogenesis for the depression that contains the Moquehue- Aluminé lakes. Previous works have identified a large volcanic complex related to Plio-Quaternary volcanic activity located at the east of the present volcanic arc. In this sector various caldera depressions and associated domic bodies have been identified. From the nine proposed calderas only the Pino Hachado caldera has been studied in detail. The Meseta del Arco and Nacimientos del Aluminé are disregarded as calderas. The erosional genesis of the steep scarps previously interpreted as caldera margins is also identified with glacial erosion. Facies and types of the local Pleistocene glaciation, its extension, their flow direction and its quite probable diffluence (Paso del Arco) through coeval glaciers situated north of the international border are also analyzed. Local characteristics of volcanic and eolian morphogenic and the mass-wasting process are described. Brief comments about pre-glacial drainage and the previous proposal of Bío Bío-Aluminé trough on the region are added. Transversal topographic-geological profiles discard west of the Bío Bío-Aluminé Fault a structural unit related to tectonic depression of Bío Bío-Aluminé trough and the Nacimientos del Aluminé and Moquehue calderas.
Fil:di Tommaso, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description The region is situated in the Neuquén Cordillera at 38° 30'S latitud close to the international border. Geomorphic and structural features are presented which indicated a glacial morphogenesis for the depression that contains the Moquehue- Aluminé lakes. Previous works have identified a large volcanic complex related to Plio-Quaternary volcanic activity located at the east of the present volcanic arc. In this sector various caldera depressions and associated domic bodies have been identified. From the nine proposed calderas only the Pino Hachado caldera has been studied in detail. The Meseta del Arco and Nacimientos del Aluminé are disregarded as calderas. The erosional genesis of the steep scarps previously interpreted as caldera margins is also identified with glacial erosion. Facies and types of the local Pleistocene glaciation, its extension, their flow direction and its quite probable diffluence (Paso del Arco) through coeval glaciers situated north of the international border are also analyzed. Local characteristics of volcanic and eolian morphogenic and the mass-wasting process are described. Brief comments about pre-glacial drainage and the previous proposal of Bío Bío-Aluminé trough on the region are added. Transversal topographic-geological profiles discard west of the Bío Bío-Aluminé Fault a structural unit related to tectonic depression of Bío Bío-Aluminé trough and the Nacimientos del Aluminé and Moquehue calderas.
publishDate 2010
dc.date.none.fl_str_mv 2010
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/20.500.12110/paper_00044822_v66_n3_p438_GonzalezDiaz
url http://hdl.handle.net/20.500.12110/paper_00044822_v66_n3_p438_GonzalezDiaz
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Rev. Asoc. Geol. Argent. 2010;66(3):438-451
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 12.982451

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