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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/114702
Ver los metadatos del registro completo
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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:UNLP2025-09-29T11:26:44Zoai: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:13292025-09-29 11:26:44.676SEDICI (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 |
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info:eu-repo/semantics/altIdentifier/issn/1696-5728 info:eu-repo/semantics/altIdentifier/doi/10.1344/GeologicaActa2020.18.17 |
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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) |
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openAccess |
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http://creativecommons.org/licenses/by-sa/4.0/ Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) |
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