Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina

Autores
Rimando, Jeremy; Schoenbohm, Lindsay; Costa, Carlos Horacio; Owen, Lewis; Cesta, Jason M.; Richard, Andrés David; Gardini, Carlos Enrique
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Most of the permanent deformation in the Pampean Flat slab segment of the central Andes is taken up at the Andean Orogenic Front in Argentina, a narrow zone between the Eastern Precordillera and Sierras Pampeanas that comprises one of the world's most seismically active thrust zones. Active faults and folds in the region have been extensively mapped but still largely lack information on style and rates of deformation, which is essential for understanding the distribution of regional strain and estimating the seismic potential of individual faults. Structural, geomorphic, and 36Cl cosmogenic radionuclide surface exposure age methods are used to focus on key sites along the 30-km-long La Rinconada Fault Zone in this region of west-central Argentina, which is ~15 km away from the highly populated (~500,000) city of San Juan, to define a late Quaternary average shortening rate of 0.41 ± 0.01 mm/year. This slip rate is the same order of magnitude, but slightly lower than nearby similar east dipping Eastern Precordillera faults including the La Laja and Las Tapias Faults. Relatively low slip rates are interpreted as being a consequence of distributed deformation between the latitude of the La Rinconada Fault Zone (31 and 32°S), as compared to between latitudes 32 to 33°S where deformation appears to be focused on fewer structures, including the Las Peñas and La Cal Thrust Faults. The La Rinconada Fault Zone is capable of generating earthquakes of Mw 6.6–7.2, but further investigations are required to determine timing and recurrence intervals of discrete events.
Fil: Rimando, Jeremy. University of Toronto; Canadá
Fil: Schoenbohm, Lindsay. University of Toronto; Canadá
Fil: Costa, Carlos Horacio. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina
Fil: Owen, Lewis. University of Cincinnati; Estados Unidos
Fil: Cesta, Jason M.. University of Cincinnati; Estados Unidos
Fil: Richard, Andrés David. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Fil: Gardini, Carlos Enrique. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Materia
COSMOGENIC DATING
LA RINCONADA FAULT
PRECORDILLERA
SEISMIC HAZARDS
SLIP RATES
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:11336/141493
Acceder
id CONICETDig_2aa25c0b91a43f407eb5b97d3f723e6e
oai_identifier_str oai:ri.conicet.gov.ar:11336/141493
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, ArgentinaRimando, JeremySchoenbohm, LindsayCosta, Carlos HoracioOwen, LewisCesta, Jason M.Richard, Andrés DavidGardini, Carlos EnriqueCOSMOGENIC DATINGLA RINCONADA FAULTPRECORDILLERASEISMIC HAZARDSSLIP RATEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Most of the permanent deformation in the Pampean Flat slab segment of the central Andes is taken up at the Andean Orogenic Front in Argentina, a narrow zone between the Eastern Precordillera and Sierras Pampeanas that comprises one of the world's most seismically active thrust zones. Active faults and folds in the region have been extensively mapped but still largely lack information on style and rates of deformation, which is essential for understanding the distribution of regional strain and estimating the seismic potential of individual faults. Structural, geomorphic, and 36Cl cosmogenic radionuclide surface exposure age methods are used to focus on key sites along the 30-km-long La Rinconada Fault Zone in this region of west-central Argentina, which is ~15 km away from the highly populated (~500,000) city of San Juan, to define a late Quaternary average shortening rate of 0.41 ± 0.01 mm/year. This slip rate is the same order of magnitude, but slightly lower than nearby similar east dipping Eastern Precordillera faults including the La Laja and Las Tapias Faults. Relatively low slip rates are interpreted as being a consequence of distributed deformation between the latitude of the La Rinconada Fault Zone (31 and 32°S), as compared to between latitudes 32 to 33°S where deformation appears to be focused on fewer structures, including the Las Peñas and La Cal Thrust Faults. The La Rinconada Fault Zone is capable of generating earthquakes of Mw 6.6–7.2, but further investigations are required to determine timing and recurrence intervals of discrete events.Fil: Rimando, Jeremy. University of Toronto; CanadáFil: Schoenbohm, Lindsay. University of Toronto; CanadáFil: Costa, Carlos Horacio. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; ArgentinaFil: Owen, Lewis. University of Cincinnati; Estados UnidosFil: Cesta, Jason M.. University of Cincinnati; Estados UnidosFil: Richard, Andrés David. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; ArgentinaFil: Gardini, Carlos Enrique. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; ArgentinaAmerican Geophysical Union2019-03info: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/11336/141493Rimando, Jeremy; Schoenbohm, Lindsay; Costa, Carlos Horacio; Owen, Lewis; Cesta, Jason M.; et al.; Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina; American Geophysical Union; Tectonics; 38; 3; 3-2019; 916-9400278-74071944-9194CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018TC005321info:eu-repo/semantics/altIdentifier/doi/10.1029/2018TC005321info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:25:26Zoai:ri.conicet.gov.ar:11336/141493instacron: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:34982025-09-10 13:25:26.442CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina
title Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina
spellingShingle Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina
Rimando, Jeremy
COSMOGENIC DATING
LA RINCONADA FAULT
PRECORDILLERA
SEISMIC HAZARDS
SLIP RATES
title_short Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina
title_full Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina
title_fullStr Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina
title_full_unstemmed Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina
title_sort Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina
dc.creator.none.fl_str_mv Rimando, Jeremy
Schoenbohm, Lindsay
Costa, Carlos Horacio
Owen, Lewis
Cesta, Jason M.
Richard, Andrés David
Gardini, Carlos Enrique
author Rimando, Jeremy
author_facet Rimando, Jeremy
Schoenbohm, Lindsay
Costa, Carlos Horacio
Owen, Lewis
Cesta, Jason M.
Richard, Andrés David
Gardini, Carlos Enrique
author_role author
author2 Schoenbohm, Lindsay
Costa, Carlos Horacio
Owen, Lewis
Cesta, Jason M.
Richard, Andrés David
Gardini, Carlos Enrique
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv COSMOGENIC DATING
LA RINCONADA FAULT
PRECORDILLERA
SEISMIC HAZARDS
SLIP RATES
topic COSMOGENIC DATING
LA RINCONADA FAULT
PRECORDILLERA
SEISMIC HAZARDS
SLIP RATES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Most of the permanent deformation in the Pampean Flat slab segment of the central Andes is taken up at the Andean Orogenic Front in Argentina, a narrow zone between the Eastern Precordillera and Sierras Pampeanas that comprises one of the world's most seismically active thrust zones. Active faults and folds in the region have been extensively mapped but still largely lack information on style and rates of deformation, which is essential for understanding the distribution of regional strain and estimating the seismic potential of individual faults. Structural, geomorphic, and 36Cl cosmogenic radionuclide surface exposure age methods are used to focus on key sites along the 30-km-long La Rinconada Fault Zone in this region of west-central Argentina, which is ~15 km away from the highly populated (~500,000) city of San Juan, to define a late Quaternary average shortening rate of 0.41 ± 0.01 mm/year. This slip rate is the same order of magnitude, but slightly lower than nearby similar east dipping Eastern Precordillera faults including the La Laja and Las Tapias Faults. Relatively low slip rates are interpreted as being a consequence of distributed deformation between the latitude of the La Rinconada Fault Zone (31 and 32°S), as compared to between latitudes 32 to 33°S where deformation appears to be focused on fewer structures, including the Las Peñas and La Cal Thrust Faults. The La Rinconada Fault Zone is capable of generating earthquakes of Mw 6.6–7.2, but further investigations are required to determine timing and recurrence intervals of discrete events.
Fil: Rimando, Jeremy. University of Toronto; Canadá
Fil: Schoenbohm, Lindsay. University of Toronto; Canadá
Fil: Costa, Carlos Horacio. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina
Fil: Owen, Lewis. University of Cincinnati; Estados Unidos
Fil: Cesta, Jason M.. University of Cincinnati; Estados Unidos
Fil: Richard, Andrés David. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Fil: Gardini, Carlos Enrique. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
description Most of the permanent deformation in the Pampean Flat slab segment of the central Andes is taken up at the Andean Orogenic Front in Argentina, a narrow zone between the Eastern Precordillera and Sierras Pampeanas that comprises one of the world's most seismically active thrust zones. Active faults and folds in the region have been extensively mapped but still largely lack information on style and rates of deformation, which is essential for understanding the distribution of regional strain and estimating the seismic potential of individual faults. Structural, geomorphic, and 36Cl cosmogenic radionuclide surface exposure age methods are used to focus on key sites along the 30-km-long La Rinconada Fault Zone in this region of west-central Argentina, which is ~15 km away from the highly populated (~500,000) city of San Juan, to define a late Quaternary average shortening rate of 0.41 ± 0.01 mm/year. This slip rate is the same order of magnitude, but slightly lower than nearby similar east dipping Eastern Precordillera faults including the La Laja and Las Tapias Faults. Relatively low slip rates are interpreted as being a consequence of distributed deformation between the latitude of the La Rinconada Fault Zone (31 and 32°S), as compared to between latitudes 32 to 33°S where deformation appears to be focused on fewer structures, including the Las Peñas and La Cal Thrust Faults. The La Rinconada Fault Zone is capable of generating earthquakes of Mw 6.6–7.2, but further investigations are required to determine timing and recurrence intervals of discrete events.
publishDate 2019
dc.date.none.fl_str_mv 2019-03
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/11336/141493
Rimando, Jeremy; Schoenbohm, Lindsay; Costa, Carlos Horacio; Owen, Lewis; Cesta, Jason M.; et al.; Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina; American Geophysical Union; Tectonics; 38; 3; 3-2019; 916-940
0278-7407
1944-9194
CONICET Digital
CONICET
url http://hdl.handle.net/11336/141493
identifier_str_mv Rimando, Jeremy; Schoenbohm, Lindsay; Costa, Carlos Horacio; Owen, Lewis; Cesta, Jason M.; et al.; Late Quaternary Activity of the La Rinconada Fault Zone, San Juan, Argentina; American Geophysical Union; Tectonics; 38; 3; 3-2019; 916-940
0278-7407
1944-9194
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://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018TC005321
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018TC005321
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
application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
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_ 1842981409732427776
score 12.993085

Publicaciones similares