Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina

Autores
D'annunzio, María Celeste; Rubinstein, Nora Alicia; Rabbia, Osvaldo Miguel
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Gualcamayo Igneous Complex is located over the Pampean flat-slab segment (28–33°S), ∼110 km eastward from the Upper Miocene front arc position. It consists of subvolcanic rocks that are affected by porphyry-type hydrothermal alteration, and are genetically linked to a cluster of Carlin-type, skarn and epithermal gold deposits at the Gualcamayo mining district. The petrogenetic analysis of these volcanic rocks allows suggesting that this late Miocene (∼9 Ma) arc-related magmatism with an adakitic signature derives from asthenospheric mantle magmas that under thickened crust conditions, evolved through amphibole fractionation with lower crust melting, probably involving Grenvillian amphibolites from the basement of the Precordillera. These melts evolved towards shallower magma chambers, where they fractionated amphibole and plagioclase, leading to a variable adakitic signal.
Fil: D'annunzio, María Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Rubinstein, Nora Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Rabbia, Osvaldo Miguel. Universidad de Concepción; Chile
Materia
ADAKITIC SIGNAL ORIGIN
ANDES
LATE MIOCENE
MINERALIZING MAGMATISM
PAMPEAN FLAT-SLAB
PETROGENETIC MODEL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/87947
Acceder
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spelling Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, ArgentinaD'annunzio, María CelesteRubinstein, Nora AliciaRabbia, Osvaldo MiguelADAKITIC SIGNAL ORIGINANDESLATE MIOCENEMINERALIZING MAGMATISMPAMPEAN FLAT-SLABPETROGENETIC MODELhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Gualcamayo Igneous Complex is located over the Pampean flat-slab segment (28–33°S), ∼110 km eastward from the Upper Miocene front arc position. It consists of subvolcanic rocks that are affected by porphyry-type hydrothermal alteration, and are genetically linked to a cluster of Carlin-type, skarn and epithermal gold deposits at the Gualcamayo mining district. The petrogenetic analysis of these volcanic rocks allows suggesting that this late Miocene (∼9 Ma) arc-related magmatism with an adakitic signature derives from asthenospheric mantle magmas that under thickened crust conditions, evolved through amphibole fractionation with lower crust melting, probably involving Grenvillian amphibolites from the basement of the Precordillera. These melts evolved towards shallower magma chambers, where they fractionated amphibole and plagioclase, leading to a variable adakitic signal.Fil: D'annunzio, María Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaFil: Rubinstein, Nora Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Rabbia, Osvaldo Miguel. Universidad de Concepción; ChilePergamon-Elsevier Science Ltd2018-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87947D'annunzio, María Celeste; Rubinstein, Nora Alicia; Rabbia, Osvaldo Miguel; Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 88; 12-2018; 16-280895-9811CONICET DigitalCONICETenghttps://ri.conicet.gov.ar/handle/11336/243077info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981117303887info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2018.06.012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:01Zoai:ri.conicet.gov.ar:11336/87947instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:10:01.689CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina
title Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina
spellingShingle Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina
D'annunzio, María Celeste
ADAKITIC SIGNAL ORIGIN
ANDES
LATE MIOCENE
MINERALIZING MAGMATISM
PAMPEAN FLAT-SLAB
PETROGENETIC MODEL
title_short Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina
title_full Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina
title_fullStr Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina
title_full_unstemmed Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina
title_sort Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina
dc.creator.none.fl_str_mv D'annunzio, María Celeste
Rubinstein, Nora Alicia
Rabbia, Osvaldo Miguel
author D'annunzio, María Celeste
author_facet D'annunzio, María Celeste
Rubinstein, Nora Alicia
Rabbia, Osvaldo Miguel
author_role author
author2 Rubinstein, Nora Alicia
Rabbia, Osvaldo Miguel
author2_role author
author
dc.subject.none.fl_str_mv ADAKITIC SIGNAL ORIGIN
ANDES
LATE MIOCENE
MINERALIZING MAGMATISM
PAMPEAN FLAT-SLAB
PETROGENETIC MODEL
topic ADAKITIC SIGNAL ORIGIN
ANDES
LATE MIOCENE
MINERALIZING MAGMATISM
PAMPEAN FLAT-SLAB
PETROGENETIC MODEL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Gualcamayo Igneous Complex is located over the Pampean flat-slab segment (28–33°S), ∼110 km eastward from the Upper Miocene front arc position. It consists of subvolcanic rocks that are affected by porphyry-type hydrothermal alteration, and are genetically linked to a cluster of Carlin-type, skarn and epithermal gold deposits at the Gualcamayo mining district. The petrogenetic analysis of these volcanic rocks allows suggesting that this late Miocene (∼9 Ma) arc-related magmatism with an adakitic signature derives from asthenospheric mantle magmas that under thickened crust conditions, evolved through amphibole fractionation with lower crust melting, probably involving Grenvillian amphibolites from the basement of the Precordillera. These melts evolved towards shallower magma chambers, where they fractionated amphibole and plagioclase, leading to a variable adakitic signal.
Fil: D'annunzio, María Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina
Fil: Rubinstein, Nora Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Rabbia, Osvaldo Miguel. Universidad de Concepción; Chile
description The Gualcamayo Igneous Complex is located over the Pampean flat-slab segment (28–33°S), ∼110 km eastward from the Upper Miocene front arc position. It consists of subvolcanic rocks that are affected by porphyry-type hydrothermal alteration, and are genetically linked to a cluster of Carlin-type, skarn and epithermal gold deposits at the Gualcamayo mining district. The petrogenetic analysis of these volcanic rocks allows suggesting that this late Miocene (∼9 Ma) arc-related magmatism with an adakitic signature derives from asthenospheric mantle magmas that under thickened crust conditions, evolved through amphibole fractionation with lower crust melting, probably involving Grenvillian amphibolites from the basement of the Precordillera. These melts evolved towards shallower magma chambers, where they fractionated amphibole and plagioclase, leading to a variable adakitic signal.
publishDate 2018
dc.date.none.fl_str_mv 2018-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/87947
D'annunzio, María Celeste; Rubinstein, Nora Alicia; Rabbia, Osvaldo Miguel; Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 88; 12-2018; 16-28
0895-9811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/87947
identifier_str_mv D'annunzio, María Celeste; Rubinstein, Nora Alicia; Rabbia, Osvaldo Miguel; Petrogenesis of the Gualcamayo Igneous Complex: Regional implications of Miocene magmatism in the Precordillera over the Pampean flat-slab segment, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 88; 12-2018; 16-28
0895-9811
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ri.conicet.gov.ar/handle/11336/243077
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0895981117303887
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2018.06.012
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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