Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys)
- Autores
- Díaz Pereira, Alfredo; Charrier, Reynaldo; Tapia, Felipe; Villarroel, Matías
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- In the Principal Cordillera of central Chile there are few quantitative structural analyses that continuously and completely cross overthe western Principal Cordillera and, simultaneously, displays values of tectonic shortening with models of the geometry of structurestoward deeper levels. The knowledge of the percentage of tectonic shortening and the geometry of the surface structures would helpto understand the deformation that gave rise to the uplift and current configuration of the Principal Cordillera, and also, to establishhypotheses about the internal architecture of the Abanico extensional basin (Charrier et al., 2002). There are a large number ofstructural sections and the evaluation of the structures that compose them, by remote sensing methods and by the contribution ofnew data for specific zones, allow their integration into continuous sections that completely cover the area of the western PrincipalCordillera in the study region.In this publication, we present the preliminary results obtained for two structural models of 50 km long cross sections that encompassthe Principal Cordillera and extend from the eastern edge of the Central Depression to the El Diablo fault system, which separates theCenozoic sequences from the Mesozoic in this region. The first model is based on 3 sections oriented at 95° azimuth, within an eastweststrip between 33°47’ and 33°53’S, and the second model based on 3 sections oriented at 105° azimuth within the strip between34°12’ y 34°26’S.The orientation of the principal structures and the parameters that define them were obtained from the generated structural models,from the calculation of the minimum crustal shortening value and from the combination of these data with the location of seismichypocenters within the study area. Finally, high-angle deep structures were identified, which would constitute master faults that delimitthe compartments of the Abanico basin for depth levels up to 2500 m.
Fil: Díaz Pereira, Alfredo. Universidad Andrés Bello; Chile
Fil: Charrier, Reynaldo. Universidad Andrés Bello; Chile
Fil: Tapia, Felipe. 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: Villarroel, Matías. Pontificia Universidad Católica de Chile; Chile
XVI Congreso Geológico Chileno
Santiago de Chile
Chile
Sociedad Geológica de Chile - Materia
-
ABANICO BASIN
CRUSTAL SHORTENING
TECTONIC INVERSION
ANDES - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/248470
Ver los metadatos del registro completo
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Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys)Díaz Pereira, AlfredoCharrier, ReynaldoTapia, FelipeVillarroel, MatíasABANICO BASINCRUSTAL SHORTENINGTECTONIC INVERSIONANDEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1In the Principal Cordillera of central Chile there are few quantitative structural analyses that continuously and completely cross overthe western Principal Cordillera and, simultaneously, displays values of tectonic shortening with models of the geometry of structurestoward deeper levels. The knowledge of the percentage of tectonic shortening and the geometry of the surface structures would helpto understand the deformation that gave rise to the uplift and current configuration of the Principal Cordillera, and also, to establishhypotheses about the internal architecture of the Abanico extensional basin (Charrier et al., 2002). There are a large number ofstructural sections and the evaluation of the structures that compose them, by remote sensing methods and by the contribution ofnew data for specific zones, allow their integration into continuous sections that completely cover the area of the western PrincipalCordillera in the study region.In this publication, we present the preliminary results obtained for two structural models of 50 km long cross sections that encompassthe Principal Cordillera and extend from the eastern edge of the Central Depression to the El Diablo fault system, which separates theCenozoic sequences from the Mesozoic in this region. The first model is based on 3 sections oriented at 95° azimuth, within an eastweststrip between 33°47’ and 33°53’S, and the second model based on 3 sections oriented at 105° azimuth within the strip between34°12’ y 34°26’S.The orientation of the principal structures and the parameters that define them were obtained from the generated structural models,from the calculation of the minimum crustal shortening value and from the combination of these data with the location of seismichypocenters within the study area. Finally, high-angle deep structures were identified, which would constitute master faults that delimitthe compartments of the Abanico basin for depth levels up to 2500 m.Fil: Díaz Pereira, Alfredo. Universidad Andrés Bello; ChileFil: Charrier, Reynaldo. Universidad Andrés Bello; ChileFil: Tapia, Felipe. 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: Villarroel, Matías. Pontificia Universidad Católica de Chile; ChileXVI Congreso Geológico ChilenoSantiago de ChileChileSociedad Geológica de ChileSociedad Geológica de Chile2023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/248470Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys); XVI Congreso Geológico Chileno; Santiago de Chile; Chile; 2023; 448-451CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://congresogeologicochileno.cl/wp-content/uploads/2024/07/Acta-XVI-Congreso-Geologico-Chileno.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:15Zoai:ri.conicet.gov.ar:11336/248470instacron: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 09:56:15.99CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys) |
| title |
Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys) |
| spellingShingle |
Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys) Díaz Pereira, Alfredo ABANICO BASIN CRUSTAL SHORTENING TECTONIC INVERSION ANDES |
| title_short |
Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys) |
| title_full |
Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys) |
| title_fullStr |
Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys) |
| title_full_unstemmed |
Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys) |
| title_sort |
Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys) |
| dc.creator.none.fl_str_mv |
Díaz Pereira, Alfredo Charrier, Reynaldo Tapia, Felipe Villarroel, Matías |
| author |
Díaz Pereira, Alfredo |
| author_facet |
Díaz Pereira, Alfredo Charrier, Reynaldo Tapia, Felipe Villarroel, Matías |
| author_role |
author |
| author2 |
Charrier, Reynaldo Tapia, Felipe Villarroel, Matías |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
ABANICO BASIN CRUSTAL SHORTENING TECTONIC INVERSION ANDES |
| topic |
ABANICO BASIN CRUSTAL SHORTENING TECTONIC INVERSION ANDES |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
In the Principal Cordillera of central Chile there are few quantitative structural analyses that continuously and completely cross overthe western Principal Cordillera and, simultaneously, displays values of tectonic shortening with models of the geometry of structurestoward deeper levels. The knowledge of the percentage of tectonic shortening and the geometry of the surface structures would helpto understand the deformation that gave rise to the uplift and current configuration of the Principal Cordillera, and also, to establishhypotheses about the internal architecture of the Abanico extensional basin (Charrier et al., 2002). There are a large number ofstructural sections and the evaluation of the structures that compose them, by remote sensing methods and by the contribution ofnew data for specific zones, allow their integration into continuous sections that completely cover the area of the western PrincipalCordillera in the study region.In this publication, we present the preliminary results obtained for two structural models of 50 km long cross sections that encompassthe Principal Cordillera and extend from the eastern edge of the Central Depression to the El Diablo fault system, which separates theCenozoic sequences from the Mesozoic in this region. The first model is based on 3 sections oriented at 95° azimuth, within an eastweststrip between 33°47’ and 33°53’S, and the second model based on 3 sections oriented at 105° azimuth within the strip between34°12’ y 34°26’S.The orientation of the principal structures and the parameters that define them were obtained from the generated structural models,from the calculation of the minimum crustal shortening value and from the combination of these data with the location of seismichypocenters within the study area. Finally, high-angle deep structures were identified, which would constitute master faults that delimitthe compartments of the Abanico basin for depth levels up to 2500 m. Fil: Díaz Pereira, Alfredo. Universidad Andrés Bello; Chile Fil: Charrier, Reynaldo. Universidad Andrés Bello; Chile Fil: Tapia, Felipe. 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: Villarroel, Matías. Pontificia Universidad Católica de Chile; Chile XVI Congreso Geológico Chileno Santiago de Chile Chile Sociedad Geológica de Chile |
| description |
In the Principal Cordillera of central Chile there are few quantitative structural analyses that continuously and completely cross overthe western Principal Cordillera and, simultaneously, displays values of tectonic shortening with models of the geometry of structurestoward deeper levels. The knowledge of the percentage of tectonic shortening and the geometry of the surface structures would helpto understand the deformation that gave rise to the uplift and current configuration of the Principal Cordillera, and also, to establishhypotheses about the internal architecture of the Abanico extensional basin (Charrier et al., 2002). There are a large number ofstructural sections and the evaluation of the structures that compose them, by remote sensing methods and by the contribution ofnew data for specific zones, allow their integration into continuous sections that completely cover the area of the western PrincipalCordillera in the study region.In this publication, we present the preliminary results obtained for two structural models of 50 km long cross sections that encompassthe Principal Cordillera and extend from the eastern edge of the Central Depression to the El Diablo fault system, which separates theCenozoic sequences from the Mesozoic in this region. The first model is based on 3 sections oriented at 95° azimuth, within an eastweststrip between 33°47’ and 33°53’S, and the second model based on 3 sections oriented at 105° azimuth within the strip between34°12’ y 34°26’S.The orientation of the principal structures and the parameters that define them were obtained from the generated structural models,from the calculation of the minimum crustal shortening value and from the combination of these data with the location of seismichypocenters within the study area. Finally, high-angle deep structures were identified, which would constitute master faults that delimitthe compartments of the Abanico basin for depth levels up to 2500 m. |
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2023 |
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2023 |
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http://hdl.handle.net/11336/248470 Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys); XVI Congreso Geológico Chileno; Santiago de Chile; Chile; 2023; 448-451 CONICET Digital CONICET |
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http://hdl.handle.net/11336/248470 |
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Analysis and structural restoration of the Abanico Formation, Principal Cordillera of central Chile, between 33°40’ – 34°20’S (Maipo and Cachapoal river valleys); XVI Congreso Geológico Chileno; Santiago de Chile; Chile; 2023; 448-451 CONICET Digital CONICET |
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eng |
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info:eu-repo/semantics/altIdentifier/url/https://congresogeologicochileno.cl/wp-content/uploads/2024/07/Acta-XVI-Congreso-Geologico-Chileno.pdf |
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Sociedad Geológica de Chile |
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