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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2002
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n1_p80_Massabie http://hdl.handle.net/20.500.12110/paper_00044822_v57_n1_p80_Massabie |
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paper:paper_00044822_v57_n1_p80_Massabie2023-06-08T14:25:33Z Age, geochemical and tectonical affinities of La Lidia rhyolites, Sierra Norte de Córdoba 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. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n1_p80_Massabie 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 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. |
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 |
publishDate |
2002 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v57_n1_p80_Massabie http://hdl.handle.net/20.500.12110/paper_00044822_v57_n1_p80_Massabie |
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1768542577219338240 |