Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina

Autores
Mescua, Jose Francisco; Giambiagi, Laura Beatriz
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The reverse reactivation of pre-existing normal faults has been documented in many orogens. In other cases, the lack of sub-surface information has allowed the construction of both inversion and non-inversion structural models. We will analyze the possibility of fault inversion in one such case, in the Malargüe fold-and-thrust belt in the Andes of Argentina. In order to address this issue, we modeled fault inversion vs. new thrust generation using the ReActiva 2.4 software, and varying the physical parameters for the pre-existing fault and the host rock. The results of modeling are compared to the possible sub-surface characteristics of faults in the Malargüe fold-and-thrust belt. We show that the orientation of these structures in the Andean stress field makes them likely to reactivate if the pre-existing fault planes present a low coefficient of friction and/or fluid overpressure. Both are expectable in the geological setting in which the structures are found. We conclude that fault inversion cannot be dismissed, and should be taken into account for structural models of the Malargüe fold-and-thrust belt. Our results can be extended to other orogens with similar characteristics.
Fil: Mescua, Jose Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Giambiagi, Laura Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Materia
ANDES
FAULT INVERSION
MALARGÜE FOLD-AND-THRUST BELT
NUMERICAL MODELING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/199577

id CONICETDig_15b09cf9e4c6b197d3ff2c080325c0b7
oai_identifier_str oai:ri.conicet.gov.ar:11336/199577
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of ArgentinaMescua, Jose FranciscoGiambiagi, Laura BeatrizANDESFAULT INVERSIONMALARGÜE FOLD-AND-THRUST BELTNUMERICAL MODELINGhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The reverse reactivation of pre-existing normal faults has been documented in many orogens. In other cases, the lack of sub-surface information has allowed the construction of both inversion and non-inversion structural models. We will analyze the possibility of fault inversion in one such case, in the Malargüe fold-and-thrust belt in the Andes of Argentina. In order to address this issue, we modeled fault inversion vs. new thrust generation using the ReActiva 2.4 software, and varying the physical parameters for the pre-existing fault and the host rock. The results of modeling are compared to the possible sub-surface characteristics of faults in the Malargüe fold-and-thrust belt. We show that the orientation of these structures in the Andean stress field makes them likely to reactivate if the pre-existing fault planes present a low coefficient of friction and/or fluid overpressure. Both are expectable in the geological setting in which the structures are found. We conclude that fault inversion cannot be dismissed, and should be taken into account for structural models of the Malargüe fold-and-thrust belt. Our results can be extended to other orogens with similar characteristics.Fil: Mescua, Jose Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Giambiagi, Laura Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaPergamon-Elsevier Science Ltd2012-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/199577Mescua, Jose Francisco; Giambiagi, Laura Beatriz; Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina; Pergamon-Elsevier Science Ltd; Journal Of Structural Geology; 35; 2-2012; 51-630191-8141CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0191814111001994info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsg.2011.11.011info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:43Zoai:ri.conicet.gov.ar:11336/199577instacron: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 09:49:43.207CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina
title Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina
spellingShingle Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina
Mescua, Jose Francisco
ANDES
FAULT INVERSION
MALARGÜE FOLD-AND-THRUST BELT
NUMERICAL MODELING
title_short Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina
title_full Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina
title_fullStr Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina
title_full_unstemmed Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina
title_sort Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina
dc.creator.none.fl_str_mv Mescua, Jose Francisco
Giambiagi, Laura Beatriz
author Mescua, Jose Francisco
author_facet Mescua, Jose Francisco
Giambiagi, Laura Beatriz
author_role author
author2 Giambiagi, Laura Beatriz
author2_role author
dc.subject.none.fl_str_mv ANDES
FAULT INVERSION
MALARGÜE FOLD-AND-THRUST BELT
NUMERICAL MODELING
topic ANDES
FAULT INVERSION
MALARGÜE FOLD-AND-THRUST BELT
NUMERICAL MODELING
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 reverse reactivation of pre-existing normal faults has been documented in many orogens. In other cases, the lack of sub-surface information has allowed the construction of both inversion and non-inversion structural models. We will analyze the possibility of fault inversion in one such case, in the Malargüe fold-and-thrust belt in the Andes of Argentina. In order to address this issue, we modeled fault inversion vs. new thrust generation using the ReActiva 2.4 software, and varying the physical parameters for the pre-existing fault and the host rock. The results of modeling are compared to the possible sub-surface characteristics of faults in the Malargüe fold-and-thrust belt. We show that the orientation of these structures in the Andean stress field makes them likely to reactivate if the pre-existing fault planes present a low coefficient of friction and/or fluid overpressure. Both are expectable in the geological setting in which the structures are found. We conclude that fault inversion cannot be dismissed, and should be taken into account for structural models of the Malargüe fold-and-thrust belt. Our results can be extended to other orogens with similar characteristics.
Fil: Mescua, Jose Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Giambiagi, Laura Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
description The reverse reactivation of pre-existing normal faults has been documented in many orogens. In other cases, the lack of sub-surface information has allowed the construction of both inversion and non-inversion structural models. We will analyze the possibility of fault inversion in one such case, in the Malargüe fold-and-thrust belt in the Andes of Argentina. In order to address this issue, we modeled fault inversion vs. new thrust generation using the ReActiva 2.4 software, and varying the physical parameters for the pre-existing fault and the host rock. The results of modeling are compared to the possible sub-surface characteristics of faults in the Malargüe fold-and-thrust belt. We show that the orientation of these structures in the Andean stress field makes them likely to reactivate if the pre-existing fault planes present a low coefficient of friction and/or fluid overpressure. Both are expectable in the geological setting in which the structures are found. We conclude that fault inversion cannot be dismissed, and should be taken into account for structural models of the Malargüe fold-and-thrust belt. Our results can be extended to other orogens with similar characteristics.
publishDate 2012
dc.date.none.fl_str_mv 2012-02
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/11336/199577
Mescua, Jose Francisco; Giambiagi, Laura Beatriz; Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina; Pergamon-Elsevier Science Ltd; Journal Of Structural Geology; 35; 2-2012; 51-63
0191-8141
CONICET Digital
CONICET
url http://hdl.handle.net/11336/199577
identifier_str_mv Mescua, Jose Francisco; Giambiagi, Laura Beatriz; Fault inversion vs. new thrust generation: a case study in the Malargüe fold-and-thrust belt, Andes of Argentina; Pergamon-Elsevier Science Ltd; Journal Of Structural Geology; 35; 2-2012; 51-63
0191-8141
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://www.sciencedirect.com/science/article/pii/S0191814111001994
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsg.2011.11.011
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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
_version_ 1842268989905960960
score 13.13397