Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation
- Autores
- Ramos, Victor Alberto; Folguera Telichevsky, Andres
- Año de publicación
- 2005
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Andes of Neuquén (36°- 38°SL) have distinctive characteristics within the Central Andes inherited from the alternation of periods of generalized extension and subsequent compression. The Loncopué trough, as a result of these processes, is an unique long depression at the foothills parallel to the Principal Cordillera, and consists of a complex half-graben system produced during Oligocene times and extensionally reactivated in the Pliocene – Pleistocene. Its northern sector concentrates the present contractional orogenic front. The nature and volume of the arc-related igneous rocks, location of the volcanic fronts, expansions and retreats of the magmatism, and the associated igneous activity in the foreland, together with the analyses of the superimposed structural styles, permitted to constrain the alternating tectonic regimes. On these bases, different stages from Jurassic to Present are correlated with changes in the geometry of the Benioff zone through time. Period of steepening of the subduction zone are associated with large volumes of poorly evolved magmas and generalized extension. On the other hand, shallowing of the subduction zones are linked to foreland migration of more evolved magmas associated with contraction and uplift in the Principal Cordillera. The injection of hot asthenospheric material from the subcontinental mantle into the asthenospheric wedge during steepening of the subduction zone, produced large melting and poorly evolved magmas in an extensional setting. These periods are linked to oceanic plate reorganizations in the late Oligocene and in the early Pliocene.
Fil: Ramos, Victor Alberto. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología. Laboratorio de Tectónica Andina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Folguera Telichevsky, Andres. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología. Laboratorio de Tectónica Andina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina - Materia
-
tectonica
neuquen - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/93822
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Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformationRamos, Victor AlbertoFolguera Telichevsky, Andrestectonicaneuquenhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Andes of Neuquén (36°- 38°SL) have distinctive characteristics within the Central Andes inherited from the alternation of periods of generalized extension and subsequent compression. The Loncopué trough, as a result of these processes, is an unique long depression at the foothills parallel to the Principal Cordillera, and consists of a complex half-graben system produced during Oligocene times and extensionally reactivated in the Pliocene – Pleistocene. Its northern sector concentrates the present contractional orogenic front. The nature and volume of the arc-related igneous rocks, location of the volcanic fronts, expansions and retreats of the magmatism, and the associated igneous activity in the foreland, together with the analyses of the superimposed structural styles, permitted to constrain the alternating tectonic regimes. On these bases, different stages from Jurassic to Present are correlated with changes in the geometry of the Benioff zone through time. Period of steepening of the subduction zone are associated with large volumes of poorly evolved magmas and generalized extension. On the other hand, shallowing of the subduction zones are linked to foreland migration of more evolved magmas associated with contraction and uplift in the Principal Cordillera. The injection of hot asthenospheric material from the subcontinental mantle into the asthenospheric wedge during steepening of the subduction zone, produced large melting and poorly evolved magmas in an extensional setting. These periods are linked to oceanic plate reorganizations in the late Oligocene and in the early Pliocene.Fil: Ramos, Victor Alberto. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología. Laboratorio de Tectónica Andina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Folguera Telichevsky, Andres. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología. Laboratorio de Tectónica Andina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaGeological Society of London2005-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/93822Ramos, Victor Alberto; Folguera Telichevsky, Andres; Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation; Geological Society of London; Geological Society of London Special Publication; 252; 12-2005; 15-350305-8719CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://sp.lyellcollection.org/content/252/1/15info:eu-repo/semantics/altIdentifier/doi/10.1144/GSL.SP.2005.252.01.02info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:13:11Zoai:ri.conicet.gov.ar:11336/93822instacron: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 10:13:11.504CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation |
title |
Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation |
spellingShingle |
Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation Ramos, Victor Alberto tectonica neuquen |
title_short |
Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation |
title_full |
Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation |
title_fullStr |
Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation |
title_full_unstemmed |
Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation |
title_sort |
Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation |
dc.creator.none.fl_str_mv |
Ramos, Victor Alberto Folguera Telichevsky, Andres |
author |
Ramos, Victor Alberto |
author_facet |
Ramos, Victor Alberto Folguera Telichevsky, Andres |
author_role |
author |
author2 |
Folguera Telichevsky, Andres |
author2_role |
author |
dc.subject.none.fl_str_mv |
tectonica neuquen |
topic |
tectonica neuquen |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The Andes of Neuquén (36°- 38°SL) have distinctive characteristics within the Central Andes inherited from the alternation of periods of generalized extension and subsequent compression. The Loncopué trough, as a result of these processes, is an unique long depression at the foothills parallel to the Principal Cordillera, and consists of a complex half-graben system produced during Oligocene times and extensionally reactivated in the Pliocene – Pleistocene. Its northern sector concentrates the present contractional orogenic front. The nature and volume of the arc-related igneous rocks, location of the volcanic fronts, expansions and retreats of the magmatism, and the associated igneous activity in the foreland, together with the analyses of the superimposed structural styles, permitted to constrain the alternating tectonic regimes. On these bases, different stages from Jurassic to Present are correlated with changes in the geometry of the Benioff zone through time. Period of steepening of the subduction zone are associated with large volumes of poorly evolved magmas and generalized extension. On the other hand, shallowing of the subduction zones are linked to foreland migration of more evolved magmas associated with contraction and uplift in the Principal Cordillera. The injection of hot asthenospheric material from the subcontinental mantle into the asthenospheric wedge during steepening of the subduction zone, produced large melting and poorly evolved magmas in an extensional setting. These periods are linked to oceanic plate reorganizations in the late Oligocene and in the early Pliocene. Fil: Ramos, Victor Alberto. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología. Laboratorio de Tectónica Andina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Folguera Telichevsky, Andres. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología. Laboratorio de Tectónica Andina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina |
description |
The Andes of Neuquén (36°- 38°SL) have distinctive characteristics within the Central Andes inherited from the alternation of periods of generalized extension and subsequent compression. The Loncopué trough, as a result of these processes, is an unique long depression at the foothills parallel to the Principal Cordillera, and consists of a complex half-graben system produced during Oligocene times and extensionally reactivated in the Pliocene – Pleistocene. Its northern sector concentrates the present contractional orogenic front. The nature and volume of the arc-related igneous rocks, location of the volcanic fronts, expansions and retreats of the magmatism, and the associated igneous activity in the foreland, together with the analyses of the superimposed structural styles, permitted to constrain the alternating tectonic regimes. On these bases, different stages from Jurassic to Present are correlated with changes in the geometry of the Benioff zone through time. Period of steepening of the subduction zone are associated with large volumes of poorly evolved magmas and generalized extension. On the other hand, shallowing of the subduction zones are linked to foreland migration of more evolved magmas associated with contraction and uplift in the Principal Cordillera. The injection of hot asthenospheric material from the subcontinental mantle into the asthenospheric wedge during steepening of the subduction zone, produced large melting and poorly evolved magmas in an extensional setting. These periods are linked to oceanic plate reorganizations in the late Oligocene and in the early Pliocene. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-12 |
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/11336/93822 Ramos, Victor Alberto; Folguera Telichevsky, Andres; Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation; Geological Society of London; Geological Society of London Special Publication; 252; 12-2005; 15-35 0305-8719 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/93822 |
identifier_str_mv |
Ramos, Victor Alberto; Folguera Telichevsky, Andres; Tectonic evolution of the Andes of Neuquén: Constraints derived from the magmatic arc and foreland deformation; Geological Society of London; Geological Society of London Special Publication; 252; 12-2005; 15-35 0305-8719 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://sp.lyellcollection.org/content/252/1/15 info:eu-repo/semantics/altIdentifier/doi/10.1144/GSL.SP.2005.252.01.02 |
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 London |
publisher.none.fl_str_mv |
Geological Society of London |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |