El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). Argentina

Preliminary results on the regional metamorphism of the Sierra Chica (Sierras Pampeanas) are reported. The work is based on a detailed textural and mineral study of high-grade cordierite-garnet metapelitic migmatites of diatexitic type. Three events are recognized on the basis of garnet textural and...

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Detalhes bibliográficos
Autores: Baldo , Edgardo G., Casquet Martín, César, Galindo Francisco, María Del Carmen
Formato: artículo
Fecha de publicación:1996
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:español
OAI Identifier:oai:docta.ucm.es:20.500.14352/56925
Acesso em linha:https://hdl.handle.net/20.500.14352/56925
Access Level:acceso abierto
Palavra-chave:552(238)
Migmatites
Granulite facies metamorphism
Sierras Pampeanas
Argentina
Petrología
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spelling El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). ArgentinaBaldo , Edgardo G.Casquet Martín, CésarGalindo Francisco, María Del Carmen552(238)MigmatitesGranulite facies metamorphismSierras PampeanasArgentinaPetrologíaPreliminary results on the regional metamorphism of the Sierra Chica (Sierras Pampeanas) are reported. The work is based on a detailed textural and mineral study of high-grade cordierite-garnet metapelitic migmatites of diatexitic type. Three events are recognized on the basis of garnet textural and chemical zoning: M7 probably represents an older metamorphism and took place under subsolidus conditions; M2 is synchronous to the main regional foliation (Sn+1). The peak of metamorphism was reached at this stage under granulite facies conditions (P1= 5.7 ± O.4kb, T= 820 ± 25°C). This event is assigned to the Pampean Orogeny; M3 represents a lower P-T event which is temptatively assigned to the uplift of the previously thickened continental crust. Registered P-T conditions for this retrograde event have been determined at 4±0.5kb and 775 ± 75°C respectively.Sociedad Geológica de EspañaUniversidad Complutense de Madrid19961996-01-0119961996-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/56925reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/569252026-06-02T12:44:21Z
dc.title.none.fl_str_mv El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). Argentina
title El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). Argentina
spellingShingle El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). Argentina
Baldo , Edgardo G.
552(238)
Migmatites
Granulite facies metamorphism
Sierras Pampeanas
Argentina
Petrología
title_short El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). Argentina
title_full El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). Argentina
title_fullStr El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). Argentina
title_full_unstemmed El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). Argentina
title_sort El metamorfismo de la Sierra Chica de Córdoba (Sierras Pampeanas). Argentina
dc.creator.none.fl_str_mv Baldo , Edgardo G.
Casquet Martín, César
Galindo Francisco, María Del Carmen
author Baldo , Edgardo G.
author_facet Baldo , Edgardo G.
Casquet Martín, César
Galindo Francisco, María Del Carmen
author_role author
author2 Casquet Martín, César
Galindo Francisco, María Del Carmen
author2_role author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 552(238)
Migmatites
Granulite facies metamorphism
Sierras Pampeanas
Argentina
Petrología
topic 552(238)
Migmatites
Granulite facies metamorphism
Sierras Pampeanas
Argentina
Petrología
description Preliminary results on the regional metamorphism of the Sierra Chica (Sierras Pampeanas) are reported. The work is based on a detailed textural and mineral study of high-grade cordierite-garnet metapelitic migmatites of diatexitic type. Three events are recognized on the basis of garnet textural and chemical zoning: M7 probably represents an older metamorphism and took place under subsolidus conditions; M2 is synchronous to the main regional foliation (Sn+1). The peak of metamorphism was reached at this stage under granulite facies conditions (P1= 5.7 ± O.4kb, T= 820 ± 25°C). This event is assigned to the Pampean Orogeny; M3 represents a lower P-T event which is temptatively assigned to the uplift of the previously thickened continental crust. Registered P-T conditions for this retrograde event have been determined at 4±0.5kb and 775 ± 75°C respectively.
publishDate 1996
dc.date.none.fl_str_mv 1996
1996-01-01
1996
1996-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/56925
url https://hdl.handle.net/20.500.14352/56925
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Geológica de España
publisher.none.fl_str_mv Sociedad Geológica de España
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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