Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)

Structures mapped in the southern Cordillera Oriental of the Andes show an unexpected geometry in an east-west cross-sectional view, with a remarkable predominance of west-directed thrusts. Although some of the Andean structures trend north-south perpendicular to the main east-west direction of Ande...

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Detalles Bibliográficos
Autores: Carrera García de Cortázar, Núria, Muñoz, J. A.
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/43879
Acceso en línea:https://hdl.handle.net/2445/43879
Access Level:acceso abierto
Palabra clave:Tectònica
Andes (Regió)
Tectonics
Andes Region
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spelling Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)Carrera García de Cortázar, NúriaMuñoz, J. A.TectònicaAndes (Regió)TectonicsAndes RegionStructures mapped in the southern Cordillera Oriental of the Andes show an unexpected geometry in an east-west cross-sectional view, with a remarkable predominance of west-directed thrusts. Although some of the Andean structures trend north-south perpendicular to the main east-west direction of Andean shortening, many of them clearly differ from this expected orientation. This peculiar structural style has been largely related to the inversion of the Cretaceous Salta Rift Basin; however, some of these anomalously trending Andean folds and faults do not result from the inversion of Cretaceous faults. This lack of inversion of some Cretaceous structures becomes evident where west-dipping extensional faults rest in the footwall of west-directed thrusts instead of developing east-directed thrusts, as would be expected. Detailed study of several structures and examination of the geometry and facies distribution of several basins highlight not only the role played by the inversion of Cretaceous extensional faults on the geometry of the Andean structures, but also that played by basement anisotropies on the development of both the Cretaceous extensional faults and the Andean contractional structures.2013201320132013info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2445/43879Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglés10.1144/SP377.2Special Publication of the Geological Society of London, 2013, vol. 377http://dx.doi.org/10.1144/SP377.2(c) Geological Society of London, 2013info:eu-repo/semantics/openAccessoai:recercat.cat:2445/438792026-05-29T05:05:01Z
dc.title.none.fl_str_mv Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)
title Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)
spellingShingle Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)
Carrera García de Cortázar, Núria
Tectònica
Andes (Regió)
Tectonics
Andes Region
title_short Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)
title_full Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)
title_fullStr Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)
title_full_unstemmed Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)
title_sort Thick-skinned tectonic style resulting from inversion of previous structures in the Southern Cordillera Oriental (NW Argentine Andes)
dc.creator.none.fl_str_mv Carrera García de Cortázar, Núria
Muñoz, J. A.
author Carrera García de Cortázar, Núria
author_facet Carrera García de Cortázar, Núria
Muñoz, J. A.
author_role author
author2 Muñoz, J. A.
author2_role author
dc.subject.none.fl_str_mv Tectònica
Andes (Regió)
Tectonics
Andes Region
topic Tectònica
Andes (Regió)
Tectonics
Andes Region
description Structures mapped in the southern Cordillera Oriental of the Andes show an unexpected geometry in an east-west cross-sectional view, with a remarkable predominance of west-directed thrusts. Although some of the Andean structures trend north-south perpendicular to the main east-west direction of Andean shortening, many of them clearly differ from this expected orientation. This peculiar structural style has been largely related to the inversion of the Cretaceous Salta Rift Basin; however, some of these anomalously trending Andean folds and faults do not result from the inversion of Cretaceous faults. This lack of inversion of some Cretaceous structures becomes evident where west-dipping extensional faults rest in the footwall of west-directed thrusts instead of developing east-directed thrusts, as would be expected. Detailed study of several structures and examination of the geometry and facies distribution of several basins highlight not only the role played by the inversion of Cretaceous extensional faults on the geometry of the Andean structures, but also that played by basement anisotropies on the development of both the Cretaceous extensional faults and the Andean contractional structures.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013
2013
2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/43879
url https://hdl.handle.net/2445/43879
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv 10.1144/SP377.2
Special Publication of the Geological Society of London, 2013, vol. 377
http://dx.doi.org/10.1144/SP377.2
dc.rights.none.fl_str_mv (c) Geological Society of London, 2013
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Geological Society of London, 2013
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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