Age, geochemical and tectonical affinities of La Lidia rhyolites, Sierra Norte de Córdoba

An analysis of rhyolitic rocks cropping out north of Deán Fimes in Sierra Norte de Córdoba was undertaken at exposures in Lomas del Durazno, along the eastern border of Salinas Grandes basin, and at estancia La Lidia on the west flank of Sierra Sauce Puncu. These rocks are commonly associated in the...

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Detalles Bibliográficos
Autores principales: Massabie, A., Mutti, D., Nestiero, O.
Formato: JOUR
Materias:
Córdoba
Geochemistry
Geochronology
Magmatism
Sierra Norte
Tectonics
Cambrian
geochemistry
geochronology
rhyolite
tectonic setting
Argentina
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v57_n1_p80_Massabie
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00044822_v57_n1_p80_Massabie
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spelling todo:paper_00044822_v57_n1_p80_Massabie2023-10-03T13:57:40Z Age, geochemical and tectonical affinities of La Lidia rhyolites, Sierra Norte de Córdoba Massabie, A. Mutti, D. Nestiero, O. Córdoba Geochemistry Geochronology Magmatism Sierra Norte Tectonics Cambrian geochemistry geochronology rhyolite tectonic setting Argentina An analysis of rhyolitic rocks cropping out north of Deán Fimes in Sierra Norte de Córdoba was undertaken at exposures in Lomas del Durazno, along the eastern border of Salinas Grandes basin, and at estancia La Lidia on the west flank of Sierra Sauce Puncu. These rocks are commonly associated in the area with weakly deformed Lower Palaeozoic sediments and metasedimentites considered to be isolated remains of larger depocentres like Chacoparanaense Basin. Cordillera Oriental and Sierra de Famatina. Geochemical and petrographical studies of both Lomas del Durazno and La Lidia rhyolites show close affinities with each other and provide the basis for correlation with Eopalaeozoic granitic porphyries and cale-alkaline granites of Sierra Norte de Córdoba. A K-Ar age of 526.9 ± 21 Ma from La Lidia rhyolites is in agreement with the structural and geochemical correlation which supports its association with the Brasilian tectomagmatic Cycle (Pampeano), the Cambrian Pre-Famatinian plutonism of Sierras de Córdoba, and contact metamorphism in La Clemira Formation of Ambargasta Hill. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v57_n1_p80_Massabie
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Córdoba
Geochemistry
Geochronology
Magmatism
Sierra Norte
Tectonics
Cambrian
geochemistry
geochronology
rhyolite
tectonic setting
Argentina
spellingShingle Córdoba
Geochemistry
Geochronology
Magmatism
Sierra Norte
Tectonics
Cambrian
geochemistry
geochronology
rhyolite
tectonic setting
Argentina
Massabie, A.
Mutti, D.
Nestiero, O.
Age, geochemical and tectonical affinities of La Lidia rhyolites, Sierra Norte de Córdoba
topic_facet Córdoba
Geochemistry
Geochronology
Magmatism
Sierra Norte
Tectonics
Cambrian
geochemistry
geochronology
rhyolite
tectonic setting
Argentina
description An analysis of rhyolitic rocks cropping out north of Deán Fimes in Sierra Norte de Córdoba was undertaken at exposures in Lomas del Durazno, along the eastern border of Salinas Grandes basin, and at estancia La Lidia on the west flank of Sierra Sauce Puncu. These rocks are commonly associated in the area with weakly deformed Lower Palaeozoic sediments and metasedimentites considered to be isolated remains of larger depocentres like Chacoparanaense Basin. Cordillera Oriental and Sierra de Famatina. Geochemical and petrographical studies of both Lomas del Durazno and La Lidia rhyolites show close affinities with each other and provide the basis for correlation with Eopalaeozoic granitic porphyries and cale-alkaline granites of Sierra Norte de Córdoba. A K-Ar age of 526.9 ± 21 Ma from La Lidia rhyolites is in agreement with the structural and geochemical correlation which supports its association with the Brasilian tectomagmatic Cycle (Pampeano), the Cambrian Pre-Famatinian plutonism of Sierras de Córdoba, and contact metamorphism in La Clemira Formation of Ambargasta Hill.
format JOUR
author Massabie, A.
Mutti, D.
Nestiero, O.
author_facet Massabie, A.
Mutti, D.
Nestiero, O.
author_sort Massabie, A.
title Age, geochemical and tectonical affinities of La Lidia rhyolites, Sierra Norte de Córdoba
title_short Age, geochemical and tectonical affinities of La Lidia rhyolites, Sierra Norte de Córdoba
title_full Age, geochemical and tectonical affinities of La Lidia rhyolites, Sierra Norte de Córdoba
title_fullStr Age, geochemical and tectonical affinities of La Lidia rhyolites, Sierra Norte de Córdoba
title_full_unstemmed Age, geochemical and tectonical affinities of La Lidia rhyolites, Sierra Norte de Córdoba
title_sort age, geochemical and tectonical affinities of la lidia rhyolites, sierra norte de córdoba
url http://hdl.handle.net/20.500.12110/paper_00044822_v57_n1_p80_Massabie
work_keys_str_mv AT massabiea agegeochemicalandtectonicalaffinitiesoflalidiarhyolitessierranortedecordoba
AT muttid agegeochemicalandtectonicalaffinitiesoflalidiarhyolitessierranortedecordoba
AT nestieroo agegeochemicalandtectonicalaffinitiesoflalidiarhyolitessierranortedecordoba
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