Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)

Autores
D’Eramo, F, J.; Esteban, J. J.; Demartis, M.; Aragón, Eugenio; Coniglio, J. E.; Pinotti, L.P.
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
SHRIMP and LA-ICP-MS analyses carried out on zircons from the Río de los Sauces granite revealed their metamorphic and igneous nature. The metamorphic zircons yielded an age of 537±4.8 (2σ)Ma that probably predates the onset of the anatexis during the Pampean orogeny. By contrast, the igneous zircons yielded a younger age of 529±6 (2σ)Ma and reflected its crystallization age. These data point to a short time lag of ca. 8Myr between the High Temperature (HT) metamorphic peak and the subsequent crystallization age of the granite. Concordia age of 534±3.8 (2σ)Ma, for both types of zircon populations, can be considered as the mean age of the Pampean HT metamorphism in the Sierras de Córdoba.
Facultad de Ciencias Naturales y Museo
Materia
Geología
Pampean orogeny
Pampean metamorphism
Río de los Sauces granite
U-Pb SHRIMP dating
LA-ICP-MS analyses
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/114702
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/114702
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)D’Eramo, F, J.Esteban, J. J.Demartis, M.Aragón, EugenioConiglio, J. E.Pinotti, L.P.GeologíaPampean orogenyPampean metamorphismRío de los Sauces graniteU-Pb SHRIMP datingLA-ICP-MS analysesSHRIMP and LA-ICP-MS analyses carried out on zircons from the Río de los Sauces granite revealed their metamorphic and igneous nature. The metamorphic zircons yielded an age of 537±4.8 (2σ)Ma that probably predates the onset of the anatexis during the Pampean orogeny. By contrast, the igneous zircons yielded a younger age of 529±6 (2σ)Ma and reflected its crystallization age. These data point to a short time lag of ca. 8Myr between the High Temperature (HT) metamorphic peak and the subsequent crystallization age of the granite. Concordia age of 534±3.8 (2σ)Ma, for both types of zircon populations, can be considered as the mean age of the Pampean HT metamorphism in the Sierras de Córdoba.Facultad de Ciencias Naturales y Museo2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1-14http://sedici.unlp.edu.ar/handle/10915/114702enginfo:eu-repo/semantics/altIdentifier/issn/1696-5728info:eu-repo/semantics/altIdentifier/doi/10.1344/GeologicaActa2020.18.17info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-sa/4.0/Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-11-26T10:04:42Zoai:sedici.unlp.edu.ar:10915/114702Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-11-26 10:04:42.954SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
title Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
spellingShingle Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
D’Eramo, F, J.
Geología
Pampean orogeny
Pampean metamorphism
Río de los Sauces granite
U-Pb SHRIMP dating
LA-ICP-MS analyses
title_short Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
title_full Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
title_fullStr Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
title_full_unstemmed Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
title_sort Time lag between metamorphism and crystallization of anatectic granites (Córdoba, Argentina)
dc.creator.none.fl_str_mv D’Eramo, F, J.
Esteban, J. J.
Demartis, M.
Aragón, Eugenio
Coniglio, J. E.
Pinotti, L.P.
author D’Eramo, F, J.
author_facet D’Eramo, F, J.
Esteban, J. J.
Demartis, M.
Aragón, Eugenio
Coniglio, J. E.
Pinotti, L.P.
author_role author
author2 Esteban, J. J.
Demartis, M.
Aragón, Eugenio
Coniglio, J. E.
Pinotti, L.P.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Geología
Pampean orogeny
Pampean metamorphism
Río de los Sauces granite
U-Pb SHRIMP dating
LA-ICP-MS analyses
topic Geología
Pampean orogeny
Pampean metamorphism
Río de los Sauces granite
U-Pb SHRIMP dating
LA-ICP-MS analyses
dc.description.none.fl_txt_mv SHRIMP and LA-ICP-MS analyses carried out on zircons from the Río de los Sauces granite revealed their metamorphic and igneous nature. The metamorphic zircons yielded an age of 537±4.8 (2σ)Ma that probably predates the onset of the anatexis during the Pampean orogeny. By contrast, the igneous zircons yielded a younger age of 529±6 (2σ)Ma and reflected its crystallization age. These data point to a short time lag of ca. 8Myr between the High Temperature (HT) metamorphic peak and the subsequent crystallization age of the granite. Concordia age of 534±3.8 (2σ)Ma, for both types of zircon populations, can be considered as the mean age of the Pampean HT metamorphism in the Sierras de Córdoba.
Facultad de Ciencias Naturales y Museo
description SHRIMP and LA-ICP-MS analyses carried out on zircons from the Río de los Sauces granite revealed their metamorphic and igneous nature. The metamorphic zircons yielded an age of 537±4.8 (2σ)Ma that probably predates the onset of the anatexis during the Pampean orogeny. By contrast, the igneous zircons yielded a younger age of 529±6 (2σ)Ma and reflected its crystallization age. These data point to a short time lag of ca. 8Myr between the High Temperature (HT) metamorphic peak and the subsequent crystallization age of the granite. Concordia age of 534±3.8 (2σ)Ma, for both types of zircon populations, can be considered as the mean age of the Pampean HT metamorphism in the Sierras de Córdoba.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/114702
url http://sedici.unlp.edu.ar/handle/10915/114702
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1696-5728
info:eu-repo/semantics/altIdentifier/doi/10.1344/GeologicaActa2020.18.17
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-sa/4.0/
Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-sa/4.0/
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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