Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline
- Autores
- Puigdomenech Negre, Carla Gimena; Alarcón, S.; Ruiz González, Víctor; Rossel, P.; Orts, Darío Leandro; Zaffarana, Claudia Beatriz
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Maipo Transition Zone or Maipo Orocline represents a change in strike of the topography from N–S between 30° and 33°S to an NNE-SSW trend to the south. The southern flank of the Maipo Orocline can be traced along strike to around 38°S. There the Andean margin exposes another orogen bending, the Arauco Orocline. Although the tectonic evolution of this segment of the Andean chain is relatively well constrained, the limit between both oroclines is unclear. In this paper, we show the results of a paleomagnetic study carried out in three plutons of Upper Triassic age located along the Coastal Cordillera of central Chile between 35° and 37°S. Paleomagnetic analysis from Constitución Granite and Cobquecura Pluton shows an increase of clockwise vertical-axis rotations from north to south consistent with previous data, whereas results obtained in the Hualpén Stock, located to the south, shows minors counter-clockwise rotations. This change in the rotation pattern would reflect the Maipo and Arauco Oroclines limit. The similar amounts of tectonic rotations recorded by Mesozoic and Miocene rocks indicate that the whole area behaved as a single block and constrains the maximum possible age for the occurrence of tectonic rotations to Miocene.
Fil: Puigdomenech Negre, Carla Gimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Alarcón, S.. Universidad Andrés Bello; Chile
Fil: Ruiz González, Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Rossel, P.. Universidad Andrés Bello; Chile
Fil: Orts, Darío Leandro. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Zaffarana, Claudia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; Argentina - Materia
-
MAIPO OROCLINE
PALEOMAGNETISM
TECTONIC ROTATION
TRIASSIC PLUTON - 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:11336/146912
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Tectonic rotations in central Chile: New insights on the southern limit of the Maipo OroclinePuigdomenech Negre, Carla GimenaAlarcón, S.Ruiz González, VíctorRossel, P.Orts, Darío LeandroZaffarana, Claudia BeatrizMAIPO OROCLINEPALEOMAGNETISMTECTONIC ROTATIONTRIASSIC PLUTONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Maipo Transition Zone or Maipo Orocline represents a change in strike of the topography from N–S between 30° and 33°S to an NNE-SSW trend to the south. The southern flank of the Maipo Orocline can be traced along strike to around 38°S. There the Andean margin exposes another orogen bending, the Arauco Orocline. Although the tectonic evolution of this segment of the Andean chain is relatively well constrained, the limit between both oroclines is unclear. In this paper, we show the results of a paleomagnetic study carried out in three plutons of Upper Triassic age located along the Coastal Cordillera of central Chile between 35° and 37°S. Paleomagnetic analysis from Constitución Granite and Cobquecura Pluton shows an increase of clockwise vertical-axis rotations from north to south consistent with previous data, whereas results obtained in the Hualpén Stock, located to the south, shows minors counter-clockwise rotations. This change in the rotation pattern would reflect the Maipo and Arauco Oroclines limit. The similar amounts of tectonic rotations recorded by Mesozoic and Miocene rocks indicate that the whole area behaved as a single block and constrains the maximum possible age for the occurrence of tectonic rotations to Miocene.Fil: Puigdomenech Negre, Carla Gimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Alarcón, S.. Universidad Andrés Bello; ChileFil: Ruiz González, Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Rossel, P.. Universidad Andrés Bello; ChileFil: Orts, Darío Leandro. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Zaffarana, Claudia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; ArgentinaPergamon-Elsevier Science Ltd2020-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/146912Puigdomenech Negre, Carla Gimena; Alarcón, S.; Ruiz González, Víctor; Rossel, P.; Orts, Darío Leandro; et al.; Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 106; 103012; 11-2020; 1-280895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0895981120305551info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.103012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:24Zoai:ri.conicet.gov.ar:11336/146912instacron: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:34982025-09-03 09:56:24.894CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline |
title |
Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline |
spellingShingle |
Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline Puigdomenech Negre, Carla Gimena MAIPO OROCLINE PALEOMAGNETISM TECTONIC ROTATION TRIASSIC PLUTON |
title_short |
Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline |
title_full |
Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline |
title_fullStr |
Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline |
title_full_unstemmed |
Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline |
title_sort |
Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline |
dc.creator.none.fl_str_mv |
Puigdomenech Negre, Carla Gimena Alarcón, S. Ruiz González, Víctor Rossel, P. Orts, Darío Leandro Zaffarana, Claudia Beatriz |
author |
Puigdomenech Negre, Carla Gimena |
author_facet |
Puigdomenech Negre, Carla Gimena Alarcón, S. Ruiz González, Víctor Rossel, P. Orts, Darío Leandro Zaffarana, Claudia Beatriz |
author_role |
author |
author2 |
Alarcón, S. Ruiz González, Víctor Rossel, P. Orts, Darío Leandro Zaffarana, Claudia Beatriz |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
MAIPO OROCLINE PALEOMAGNETISM TECTONIC ROTATION TRIASSIC PLUTON |
topic |
MAIPO OROCLINE PALEOMAGNETISM TECTONIC ROTATION TRIASSIC PLUTON |
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 Maipo Transition Zone or Maipo Orocline represents a change in strike of the topography from N–S between 30° and 33°S to an NNE-SSW trend to the south. The southern flank of the Maipo Orocline can be traced along strike to around 38°S. There the Andean margin exposes another orogen bending, the Arauco Orocline. Although the tectonic evolution of this segment of the Andean chain is relatively well constrained, the limit between both oroclines is unclear. In this paper, we show the results of a paleomagnetic study carried out in three plutons of Upper Triassic age located along the Coastal Cordillera of central Chile between 35° and 37°S. Paleomagnetic analysis from Constitución Granite and Cobquecura Pluton shows an increase of clockwise vertical-axis rotations from north to south consistent with previous data, whereas results obtained in the Hualpén Stock, located to the south, shows minors counter-clockwise rotations. This change in the rotation pattern would reflect the Maipo and Arauco Oroclines limit. The similar amounts of tectonic rotations recorded by Mesozoic and Miocene rocks indicate that the whole area behaved as a single block and constrains the maximum possible age for the occurrence of tectonic rotations to Miocene. Fil: Puigdomenech Negre, Carla Gimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina Fil: Alarcón, S.. Universidad Andrés Bello; Chile Fil: Ruiz González, Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina Fil: Rossel, P.. Universidad Andrés Bello; Chile Fil: Orts, Darío Leandro. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Zaffarana, Claudia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro. Sede Alto Valle. Instituto de Investigaciones en Paleobiología y Geología; Argentina |
description |
The Maipo Transition Zone or Maipo Orocline represents a change in strike of the topography from N–S between 30° and 33°S to an NNE-SSW trend to the south. The southern flank of the Maipo Orocline can be traced along strike to around 38°S. There the Andean margin exposes another orogen bending, the Arauco Orocline. Although the tectonic evolution of this segment of the Andean chain is relatively well constrained, the limit between both oroclines is unclear. In this paper, we show the results of a paleomagnetic study carried out in three plutons of Upper Triassic age located along the Coastal Cordillera of central Chile between 35° and 37°S. Paleomagnetic analysis from Constitución Granite and Cobquecura Pluton shows an increase of clockwise vertical-axis rotations from north to south consistent with previous data, whereas results obtained in the Hualpén Stock, located to the south, shows minors counter-clockwise rotations. This change in the rotation pattern would reflect the Maipo and Arauco Oroclines limit. The similar amounts of tectonic rotations recorded by Mesozoic and Miocene rocks indicate that the whole area behaved as a single block and constrains the maximum possible age for the occurrence of tectonic rotations to Miocene. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-11 |
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/11336/146912 Puigdomenech Negre, Carla Gimena; Alarcón, S.; Ruiz González, Víctor; Rossel, P.; Orts, Darío Leandro; et al.; Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 106; 103012; 11-2020; 1-28 0895-9811 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/146912 |
identifier_str_mv |
Puigdomenech Negre, Carla Gimena; Alarcón, S.; Ruiz González, Víctor; Rossel, P.; Orts, Darío Leandro; et al.; Tectonic rotations in central Chile: New insights on the southern limit of the Maipo Orocline; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 106; 103012; 11-2020; 1-28 0895-9811 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://linkinghub.elsevier.com/retrieve/pii/S0895981120305551 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.103012 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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openAccess |
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
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Pergamon-Elsevier Science Ltd |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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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 |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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