Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysis

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The outcrops from the Morro Solar locality gave birth in the Lower Cretaceous within a purely extensional tectonic regime which changed to a compressional regime linked to an oblique plate tectonic convergence as of the Upper Cretaceous and during Cenozoic era. In order to study the pos sedimentary...

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Autor: Ayala Carazas, Luis Alberto
Formato: artículo
Fecha de Publicación:2019
Institución:Universidad Nacional Mayor de San Marcos
Repositorio:Revista UNMSM - IIGEO
Lenguaje:español
OAI Identifier:oai:ojs.csi.unmsm:article/16699
Enlace del recurso:https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/16699
Nivel de acceso:acceso abierto
Materia:Morro Solar; cenozoic tectonics; peruvian forearc; structural analysis
Morro Solar; tectónica cenozoica; Antearco peruano; análisis estructural
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spelling Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysisInfluencia de la tectónica cenozoica del Antearco peruano en el mecanismo de deformación del Morro Solar mediante el análisis estructuralAyala Carazas, Luis AlbertoMorro Solar; cenozoic tectonics; peruvian forearc; structural analysisMorro Solar; tectónica cenozoica; Antearco peruano; análisis estructuralThe outcrops from the Morro Solar locality gave birth in the Lower Cretaceous within a purely extensional tectonic regime which changed to a compressional regime linked to an oblique plate tectonic convergence as of the Upper Cretaceous and during Cenozoic era. In order to study the pos sedimentary cenozoic tectonics that superimposed to such outcrops, it has been necessary to collect an important quantity of structural data from surface represented by the geometric orientation of fault surfaces that shows a observable tectonic displacement as well microstructures such slickenlines and kinematic indicators from a fragile environment. Accordingly, it was possible to determine two structural systems that worked in different times. The younger structural system is composed by a set of ~NE-SW to ~W-E normal faults which by means of the proposed structural analysis in this study it concluded that they were yielded as the result of a “strain partitioning” that occurred during the Cenozoic times within the central Peruvian forearc.Los afloramientos rocosos del Morro Solar tienen su origen en el Cretáceo inferior durante un régimen tectónico puramente extensional el cual a partir del Cretáceo superior y durante el Cenozoico cambió a un régimen compresional ligado a un contexto de convergencia oblicua de placas tectónicas. Con el fin de estudiar la tectónica cenozoica pos depósito que se sobreimpuso a tales afloramientos, se ha colectado una importante cantidad de datos estructurales de superficie representados por las orientaciones geométricas de superficies de falla que exhiben un desplazamiento tectónico observable y microestructuras bajo la forma de estrías e indicadores cinemáticos propios de ambientes frágiles. De manera que se ha determinado dos sistemas estructurales que funcionaron en tiempos distintos. El sistema estructural más joven se conforma por un conjunto de fallas normales NE-SO a O-E que mediante el análisis estructural propuesto se ha llegado a la conclusión de que se produjeron en transtensión como el resultado de una “partición de la deformación” ocurrida en el Cenozoico para el Antearco central del Perú.Facultad de Ingeniería Geológica, Minera, Metalurgica y Geográfica2019-07-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/1669910.15381/iigeo.v22i43.16699Revista del Instituto de Investigación de la Facultad de Ingeniería Geológica, Minera, Metalúrgica y Geográfica; Vol 22 No 43 (2019); 133-142Revista del Instituto de Investigación de la Facultad de Ingeniería Geológica, Minera, Metalúrgica y Geográfica; Vol. 22 Núm. 43 (2019); 133-1421682-30871561-0888reponame:Revista UNMSM - IIGEOinstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMspahttps://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/16699/14262Derechos de autor 2019 Luis Alberto Ayala Carazashttp://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/openAccess2020-03-17T18:25:40Zmail@mail.com -
dc.title.none.fl_str_mv Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysis
Influencia de la tectónica cenozoica del Antearco peruano en el mecanismo de deformación del Morro Solar mediante el análisis estructural
title Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysis
spellingShingle Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysis
Ayala Carazas, Luis Alberto
Morro Solar; cenozoic tectonics; peruvian forearc; structural analysis
Morro Solar; tectónica cenozoica; Antearco peruano; análisis estructural
title_short Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysis
title_full Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysis
title_fullStr Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysis
title_full_unstemmed Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysis
title_sort Influence of the cenozoic tectonics from the Peruvian Forearc on the Morro Solar deformation mechanism by means of structural analysis
dc.creator.none.fl_str_mv Ayala Carazas, Luis Alberto
author Ayala Carazas, Luis Alberto
author_facet Ayala Carazas, Luis Alberto
author_role author
dc.subject.none.fl_str_mv Morro Solar; cenozoic tectonics; peruvian forearc; structural analysis
Morro Solar; tectónica cenozoica; Antearco peruano; análisis estructural
topic Morro Solar; cenozoic tectonics; peruvian forearc; structural analysis
Morro Solar; tectónica cenozoica; Antearco peruano; análisis estructural
dc.description.none.fl_txt_mv The outcrops from the Morro Solar locality gave birth in the Lower Cretaceous within a purely extensional tectonic regime which changed to a compressional regime linked to an oblique plate tectonic convergence as of the Upper Cretaceous and during Cenozoic era. In order to study the pos sedimentary cenozoic tectonics that superimposed to such outcrops, it has been necessary to collect an important quantity of structural data from surface represented by the geometric orientation of fault surfaces that shows a observable tectonic displacement as well microstructures such slickenlines and kinematic indicators from a fragile environment. Accordingly, it was possible to determine two structural systems that worked in different times. The younger structural system is composed by a set of ~NE-SW to ~W-E normal faults which by means of the proposed structural analysis in this study it concluded that they were yielded as the result of a “strain partitioning” that occurred during the Cenozoic times within the central Peruvian forearc.
Los afloramientos rocosos del Morro Solar tienen su origen en el Cretáceo inferior durante un régimen tectónico puramente extensional el cual a partir del Cretáceo superior y durante el Cenozoico cambió a un régimen compresional ligado a un contexto de convergencia oblicua de placas tectónicas. Con el fin de estudiar la tectónica cenozoica pos depósito que se sobreimpuso a tales afloramientos, se ha colectado una importante cantidad de datos estructurales de superficie representados por las orientaciones geométricas de superficies de falla que exhiben un desplazamiento tectónico observable y microestructuras bajo la forma de estrías e indicadores cinemáticos propios de ambientes frágiles. De manera que se ha determinado dos sistemas estructurales que funcionaron en tiempos distintos. El sistema estructural más joven se conforma por un conjunto de fallas normales NE-SO a O-E que mediante el análisis estructural propuesto se ha llegado a la conclusión de que se produjeron en transtensión como el resultado de una “partición de la deformación” ocurrida en el Cenozoico para el Antearco central del Perú.
description The outcrops from the Morro Solar locality gave birth in the Lower Cretaceous within a purely extensional tectonic regime which changed to a compressional regime linked to an oblique plate tectonic convergence as of the Upper Cretaceous and during Cenozoic era. In order to study the pos sedimentary cenozoic tectonics that superimposed to such outcrops, it has been necessary to collect an important quantity of structural data from surface represented by the geometric orientation of fault surfaces that shows a observable tectonic displacement as well microstructures such slickenlines and kinematic indicators from a fragile environment. Accordingly, it was possible to determine two structural systems that worked in different times. The younger structural system is composed by a set of ~NE-SW to ~W-E normal faults which by means of the proposed structural analysis in this study it concluded that they were yielded as the result of a “strain partitioning” that occurred during the Cenozoic times within the central Peruvian forearc.
publishDate 2019
dc.date.none.fl_str_mv 2019-07-15
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/16699
10.15381/iigeo.v22i43.16699
url https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/16699
identifier_str_mv 10.15381/iigeo.v22i43.16699
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/16699/14262
dc.rights.none.fl_str_mv Derechos de autor 2019 Luis Alberto Ayala Carazas
http://creativecommons.org/licenses/by-nc-sa/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2019 Luis Alberto Ayala Carazas
http://creativecommons.org/licenses/by-nc-sa/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Facultad de Ingeniería Geológica, Minera, Metalurgica y Geográfica
publisher.none.fl_str_mv Facultad de Ingeniería Geológica, Minera, Metalurgica y Geográfica
dc.source.none.fl_str_mv Revista del Instituto de Investigación de la Facultad de Ingeniería Geológica, Minera, Metalúrgica y Geográfica; Vol 22 No 43 (2019); 133-142
Revista del Instituto de Investigación de la Facultad de Ingeniería Geológica, Minera, Metalúrgica y Geográfica; Vol. 22 Núm. 43 (2019); 133-142
1682-3087
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repository.mail.fl_str_mv mail@mail.com
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