Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting

Autores
Folguera Telichevsky, Andres; Naranjo, José Antonio; Orihashi, Yuji; Sumino, Hirochika; Nagao, Keisuke; Polanco, Edmundo; Ramos, Victor Alberto
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
One of the major retroarc volcanic provinces in the southern Central Andes (34° and 37°S) is developed in the Andean foothills of the San Rafael region between the orogenic front and foreland basement uplifts of Late Miocene age. Here we present the first comprehensive geochronological study of the Quaternary volcanism, previously dated mainly on the basis of stratigraphy. The new unspiked K-Ar radiometric and two radiocarbon determinations encompass many volcanic centers, most of them monogenetic and of basaltic composition exposed between 34° and 35°30′S. The data constrains the basaltic volcanism to between ~ 1.8 Ma and the Holocene. The spatiotemporal distribution of the ages indicates that eruption in the retroarc was episodic with some distinct patterns. The orogenic front of the San Rafael Block is associated with 1.8-0.7 Ma volcanic eruptions, while the Malargüe fold and thrust belt front in the Andean foothills is related to younger eruptions produced at 0.1-0.01 Ma. Both areas are associated with Late Cenozoic normal faults that dismembered an uplifted a Late Miocene peneplain as indicated by younger over older fault-relationships between Paleozoic rocks and Tertiary strata. This linkage indicates a major relationship between Pleistocene-Holocene retroarc eruptions of the basaltic centers, and extensional collapse of the foreland region, that shows a migration of the last volcanic activity towards the trench.
Fil: Folguera Telichevsky, Andres. 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: Naranjo, José A.. Servicio Nacional de Geologia y Mineria; Chile
Fil: Orihashi, Yuji. University of Tokyo; Japón
Fil: Sumino, Hirochika. University of Tokyo; Japón
Fil: Nagao, Keisuke. University of Tokyo; Japón
Fil: Polanco, Edmundo. Servicio Nacional de Geologia y Mineria; Chile
Fil: Ramos, Victor Alberto. 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
Materia
BACK ARC EXTENSION
K-AR DATING
MENDOZA
PAYENIA
RETROARC BASALTS
VOLCANOES
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:11336/92712
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/92712
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic settingFolguera Telichevsky, AndresNaranjo, José AntonioOrihashi, YujiSumino, HirochikaNagao, KeisukePolanco, EdmundoRamos, Victor AlbertoBACK ARC EXTENSIONK-AR DATINGMENDOZAPAYENIARETROARC BASALTSVOLCANOEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1One of the major retroarc volcanic provinces in the southern Central Andes (34° and 37°S) is developed in the Andean foothills of the San Rafael region between the orogenic front and foreland basement uplifts of Late Miocene age. Here we present the first comprehensive geochronological study of the Quaternary volcanism, previously dated mainly on the basis of stratigraphy. The new unspiked K-Ar radiometric and two radiocarbon determinations encompass many volcanic centers, most of them monogenetic and of basaltic composition exposed between 34° and 35°30′S. The data constrains the basaltic volcanism to between ~ 1.8 Ma and the Holocene. The spatiotemporal distribution of the ages indicates that eruption in the retroarc was episodic with some distinct patterns. The orogenic front of the San Rafael Block is associated with 1.8-0.7 Ma volcanic eruptions, while the Malargüe fold and thrust belt front in the Andean foothills is related to younger eruptions produced at 0.1-0.01 Ma. Both areas are associated with Late Cenozoic normal faults that dismembered an uplifted a Late Miocene peneplain as indicated by younger over older fault-relationships between Paleozoic rocks and Tertiary strata. This linkage indicates a major relationship between Pleistocene-Holocene retroarc eruptions of the basaltic centers, and extensional collapse of the foreland region, that shows a migration of the last volcanic activity towards the trench.Fil: Folguera Telichevsky, Andres. 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: Naranjo, José A.. Servicio Nacional de Geologia y Mineria; ChileFil: Orihashi, Yuji. University of Tokyo; JapónFil: Sumino, Hirochika. University of Tokyo; JapónFil: Nagao, Keisuke. University of Tokyo; JapónFil: Polanco, Edmundo. Servicio Nacional de Geologia y Mineria; ChileFil: Ramos, Victor Alberto. 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"; ArgentinaElsevier Science2009-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/92712Folguera Telichevsky, Andres; Naranjo, José Antonio; Orihashi, Yuji; Sumino, Hirochika; Nagao, Keisuke; et al.; Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting; Elsevier Science; Journal of Volcanology and Geothermal Research; 186; 3-4; 10-2009; 169-1850377-0273CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2009.06.012info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0377027309002595info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:28:02Zoai:ri.conicet.gov.ar:11336/92712instacron: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 10:28:03.144CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting
title Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting
spellingShingle Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting
Folguera Telichevsky, Andres
BACK ARC EXTENSION
K-AR DATING
MENDOZA
PAYENIA
RETROARC BASALTS
VOLCANOES
title_short Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting
title_full Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting
title_fullStr Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting
title_full_unstemmed Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting
title_sort Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting
dc.creator.none.fl_str_mv Folguera Telichevsky, Andres
Naranjo, José Antonio
Orihashi, Yuji
Sumino, Hirochika
Nagao, Keisuke
Polanco, Edmundo
Ramos, Victor Alberto
author Folguera Telichevsky, Andres
author_facet Folguera Telichevsky, Andres
Naranjo, José Antonio
Orihashi, Yuji
Sumino, Hirochika
Nagao, Keisuke
Polanco, Edmundo
Ramos, Victor Alberto
author_role author
author2 Naranjo, José Antonio
Orihashi, Yuji
Sumino, Hirochika
Nagao, Keisuke
Polanco, Edmundo
Ramos, Victor Alberto
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv BACK ARC EXTENSION
K-AR DATING
MENDOZA
PAYENIA
RETROARC BASALTS
VOLCANOES
topic BACK ARC EXTENSION
K-AR DATING
MENDOZA
PAYENIA
RETROARC BASALTS
VOLCANOES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv One of the major retroarc volcanic provinces in the southern Central Andes (34° and 37°S) is developed in the Andean foothills of the San Rafael region between the orogenic front and foreland basement uplifts of Late Miocene age. Here we present the first comprehensive geochronological study of the Quaternary volcanism, previously dated mainly on the basis of stratigraphy. The new unspiked K-Ar radiometric and two radiocarbon determinations encompass many volcanic centers, most of them monogenetic and of basaltic composition exposed between 34° and 35°30′S. The data constrains the basaltic volcanism to between ~ 1.8 Ma and the Holocene. The spatiotemporal distribution of the ages indicates that eruption in the retroarc was episodic with some distinct patterns. The orogenic front of the San Rafael Block is associated with 1.8-0.7 Ma volcanic eruptions, while the Malargüe fold and thrust belt front in the Andean foothills is related to younger eruptions produced at 0.1-0.01 Ma. Both areas are associated with Late Cenozoic normal faults that dismembered an uplifted a Late Miocene peneplain as indicated by younger over older fault-relationships between Paleozoic rocks and Tertiary strata. This linkage indicates a major relationship between Pleistocene-Holocene retroarc eruptions of the basaltic centers, and extensional collapse of the foreland region, that shows a migration of the last volcanic activity towards the trench.
Fil: Folguera Telichevsky, Andres. 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: Naranjo, José A.. Servicio Nacional de Geologia y Mineria; Chile
Fil: Orihashi, Yuji. University of Tokyo; Japón
Fil: Sumino, Hirochika. University of Tokyo; Japón
Fil: Nagao, Keisuke. University of Tokyo; Japón
Fil: Polanco, Edmundo. Servicio Nacional de Geologia y Mineria; Chile
Fil: Ramos, Victor Alberto. 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
description One of the major retroarc volcanic provinces in the southern Central Andes (34° and 37°S) is developed in the Andean foothills of the San Rafael region between the orogenic front and foreland basement uplifts of Late Miocene age. Here we present the first comprehensive geochronological study of the Quaternary volcanism, previously dated mainly on the basis of stratigraphy. The new unspiked K-Ar radiometric and two radiocarbon determinations encompass many volcanic centers, most of them monogenetic and of basaltic composition exposed between 34° and 35°30′S. The data constrains the basaltic volcanism to between ~ 1.8 Ma and the Holocene. The spatiotemporal distribution of the ages indicates that eruption in the retroarc was episodic with some distinct patterns. The orogenic front of the San Rafael Block is associated with 1.8-0.7 Ma volcanic eruptions, while the Malargüe fold and thrust belt front in the Andean foothills is related to younger eruptions produced at 0.1-0.01 Ma. Both areas are associated with Late Cenozoic normal faults that dismembered an uplifted a Late Miocene peneplain as indicated by younger over older fault-relationships between Paleozoic rocks and Tertiary strata. This linkage indicates a major relationship between Pleistocene-Holocene retroarc eruptions of the basaltic centers, and extensional collapse of the foreland region, that shows a migration of the last volcanic activity towards the trench.
publishDate 2009
dc.date.none.fl_str_mv 2009-10
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/11336/92712
Folguera Telichevsky, Andres; Naranjo, José Antonio; Orihashi, Yuji; Sumino, Hirochika; Nagao, Keisuke; et al.; Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting; Elsevier Science; Journal of Volcanology and Geothermal Research; 186; 3-4; 10-2009; 169-185
0377-0273
CONICET Digital
CONICET
url http://hdl.handle.net/11336/92712
identifier_str_mv Folguera Telichevsky, Andres; Naranjo, José Antonio; Orihashi, Yuji; Sumino, Hirochika; Nagao, Keisuke; et al.; Retroarc volcanism in the northern San Rafael Block (34°-35°30′S), southern Central Andes: Occurrence, age, and tectonic setting; Elsevier Science; Journal of Volcanology and Geothermal Research; 186; 3-4; 10-2009; 169-185
0377-0273
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jvolgeores.2009.06.012
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0377027309002595
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
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 13.069144

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