Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics

Autores
Sánchez, Natalia Paola; Turienzo, Martin Miguel; Lebinson, Fernando Oscar; Araujo, Vanesa Soledad; Coutand, Isabelle; Dimieri, Luis Vicente
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Chos Malal fold and thrust belt is a thick-skinned mountain belt that deformed the Mesozoic deposits of the Neuquén Basin during the Andean orogeny. Four structural cross-sections across the entire deformed area, supported by field and subsurface data, suggest a strong link between the thick and thin-skinned structures. Major Andean thrusts detached ~12 km into the crust produced large basement wedges, which were inserted in the cover producing minor order structures. The westernmost of these wedges is exposed forming the Cordillera del Viento, while a second basement slice was interpreted from seismic lines. Both thick-skinned structures transferred deformation to the cover along the Auquilco Formation and contribute to create all the thin-skinned structures surveyed the fold and thrust belt. We recognized half-graben geometries in the seismic lines, which preserve their extensional configuration and the main normal faults are not inverted compressively. Shortenings calculated from the restoration of the cross-sections are 15.6 km (28%), 15.8 km (28.3%), 14.16 km (26.5%) and 15.7 km (28.18%) for the north, centrals and south cross-sections respectively, which evidence a homogeneous contraction during the Andean orogeny in this segment of the Chos Malal fold and thrust belt.
Fil: Sánchez, Natalia Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
Fil: Turienzo, Martin Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
Fil: Lebinson, Fernando Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
Fil: Araujo, Vanesa Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
Fil: Coutand, Isabelle. Dalhousie University; Canadá
Fil: Dimieri, Luis Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
Materia
Thick-Skinned Structures
Shortening
Neuquén Basin
Andean Compression
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/6487
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/6487
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonicsSánchez, Natalia PaolaTurienzo, Martin MiguelLebinson, Fernando OscarAraujo, Vanesa SoledadCoutand, IsabelleDimieri, Luis VicenteThick-Skinned StructuresShorteningNeuquén BasinAndean Compressionhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Chos Malal fold and thrust belt is a thick-skinned mountain belt that deformed the Mesozoic deposits of the Neuquén Basin during the Andean orogeny. Four structural cross-sections across the entire deformed area, supported by field and subsurface data, suggest a strong link between the thick and thin-skinned structures. Major Andean thrusts detached ~12 km into the crust produced large basement wedges, which were inserted in the cover producing minor order structures. The westernmost of these wedges is exposed forming the Cordillera del Viento, while a second basement slice was interpreted from seismic lines. Both thick-skinned structures transferred deformation to the cover along the Auquilco Formation and contribute to create all the thin-skinned structures surveyed the fold and thrust belt. We recognized half-graben geometries in the seismic lines, which preserve their extensional configuration and the main normal faults are not inverted compressively. Shortenings calculated from the restoration of the cross-sections are 15.6 km (28%), 15.8 km (28.3%), 14.16 km (26.5%) and 15.7 km (28.18%) for the north, centrals and south cross-sections respectively, which evidence a homogeneous contraction during the Andean orogeny in this segment of the Chos Malal fold and thrust belt.Fil: Sánchez, Natalia Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; ArgentinaFil: Turienzo, Martin Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; ArgentinaFil: Lebinson, Fernando Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; ArgentinaFil: Araujo, Vanesa Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; ArgentinaFil: Coutand, Isabelle. Dalhousie University; CanadáFil: Dimieri, Luis Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; ArgentinaElsevier2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6487Sánchez, Natalia Paola; Turienzo, Martin Miguel; Lebinson, Fernando Oscar; Araujo, Vanesa Soledad; Coutand, Isabelle; et al.; Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics; Elsevier; Journal of South American Earth Sciences; 64; Part 2; 7-2015; 399-4170895-9811enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981115300183info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2015.07.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:35:07Zoai:ri.conicet.gov.ar:11336/6487instacron: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 10:35:08.175CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics
title Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics
spellingShingle Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics
Sánchez, Natalia Paola
Thick-Skinned Structures
Shortening
Neuquén Basin
Andean Compression
title_short Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics
title_full Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics
title_fullStr Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics
title_full_unstemmed Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics
title_sort Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics
dc.creator.none.fl_str_mv Sánchez, Natalia Paola
Turienzo, Martin Miguel
Lebinson, Fernando Oscar
Araujo, Vanesa Soledad
Coutand, Isabelle
Dimieri, Luis Vicente
author Sánchez, Natalia Paola
author_facet Sánchez, Natalia Paola
Turienzo, Martin Miguel
Lebinson, Fernando Oscar
Araujo, Vanesa Soledad
Coutand, Isabelle
Dimieri, Luis Vicente
author_role author
author2 Turienzo, Martin Miguel
Lebinson, Fernando Oscar
Araujo, Vanesa Soledad
Coutand, Isabelle
Dimieri, Luis Vicente
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Thick-Skinned Structures
Shortening
Neuquén Basin
Andean Compression
topic Thick-Skinned Structures
Shortening
Neuquén Basin
Andean Compression
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 Chos Malal fold and thrust belt is a thick-skinned mountain belt that deformed the Mesozoic deposits of the Neuquén Basin during the Andean orogeny. Four structural cross-sections across the entire deformed area, supported by field and subsurface data, suggest a strong link between the thick and thin-skinned structures. Major Andean thrusts detached ~12 km into the crust produced large basement wedges, which were inserted in the cover producing minor order structures. The westernmost of these wedges is exposed forming the Cordillera del Viento, while a second basement slice was interpreted from seismic lines. Both thick-skinned structures transferred deformation to the cover along the Auquilco Formation and contribute to create all the thin-skinned structures surveyed the fold and thrust belt. We recognized half-graben geometries in the seismic lines, which preserve their extensional configuration and the main normal faults are not inverted compressively. Shortenings calculated from the restoration of the cross-sections are 15.6 km (28%), 15.8 km (28.3%), 14.16 km (26.5%) and 15.7 km (28.18%) for the north, centrals and south cross-sections respectively, which evidence a homogeneous contraction during the Andean orogeny in this segment of the Chos Malal fold and thrust belt.
Fil: Sánchez, Natalia Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
Fil: Turienzo, Martin Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
Fil: Lebinson, Fernando Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
Fil: Araujo, Vanesa Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
Fil: Coutand, Isabelle. Dalhousie University; Canadá
Fil: Dimieri, Luis Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; Argentina. Universidad Nacional del Sur; Argentina
description The Chos Malal fold and thrust belt is a thick-skinned mountain belt that deformed the Mesozoic deposits of the Neuquén Basin during the Andean orogeny. Four structural cross-sections across the entire deformed area, supported by field and subsurface data, suggest a strong link between the thick and thin-skinned structures. Major Andean thrusts detached ~12 km into the crust produced large basement wedges, which were inserted in the cover producing minor order structures. The westernmost of these wedges is exposed forming the Cordillera del Viento, while a second basement slice was interpreted from seismic lines. Both thick-skinned structures transferred deformation to the cover along the Auquilco Formation and contribute to create all the thin-skinned structures surveyed the fold and thrust belt. We recognized half-graben geometries in the seismic lines, which preserve their extensional configuration and the main normal faults are not inverted compressively. Shortenings calculated from the restoration of the cross-sections are 15.6 km (28%), 15.8 km (28.3%), 14.16 km (26.5%) and 15.7 km (28.18%) for the north, centrals and south cross-sections respectively, which evidence a homogeneous contraction during the Andean orogeny in this segment of the Chos Malal fold and thrust belt.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
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/11336/6487
Sánchez, Natalia Paola; Turienzo, Martin Miguel; Lebinson, Fernando Oscar; Araujo, Vanesa Soledad; Coutand, Isabelle; et al.; Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics; Elsevier; Journal of South American Earth Sciences; 64; Part 2; 7-2015; 399-417
0895-9811
url http://hdl.handle.net/11336/6487
identifier_str_mv Sánchez, Natalia Paola; Turienzo, Martin Miguel; Lebinson, Fernando Oscar; Araujo, Vanesa Soledad; Coutand, Isabelle; et al.; Structural style of the Chos Malal fold and thrust belt, Neuquén Basin, Argentina: relationship between thick- and thin-skinned tectonics; Elsevier; Journal of South American Earth Sciences; 64; Part 2; 7-2015; 399-417
0895-9811
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981115300183
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2015.07.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv 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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score 13.070432

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