A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina

Autores
Villar, Luisa Maria; Chernicoff, Carlos Jorge
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Cr+Ni+Co+PGE elements occurring at the Sierra de Fiambalá, Argentina (ca. 27º 49’ S - 67º 30’ W) are known to be genetically related to a Lower Paleozoic layered Ma c-Ultramafic (Fiambalá) Complex, where the mineralization is concentrated in the basal ultramafic layer formed by spinel dunites overlain by lherzolites, websterites and gabbronorites. The profiles of PGE fractionation of the Fiambalá lherzolites have the same characteristic signature –PGE concentrated in the sulfurized phase, with enrichment in Pt and Pd– of other layered mafic-ultramafic complexes such us the Bushveld and Stillwater complexes, developed in extensional contexts. The latter context may seem to be inconsistent with the Fiambalá Complex representing the root of a magmatic arc, but the fact that the locus of this Lower Paleozoic magmatic arc is known to have undergone extensive rifting during the Neoproterozoic (possibly up to Cambrian times) allows the present authors to propose that the Fiambalá Mafic-Ultramafic Complex has some geochemical and metalliferous inheritance from the predecessor extensional regime, whereby fragments of pre-existing MORB basement may have been assimilated into the parental magma of the Fiambalá Complex, represented by a number of samples collected near the western margin of the Complex, in the vicinity of a postulated feeder dyke
Fil: Villar, Luisa Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chernicoff, Carlos Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Secretaría de Industria y Minería. Servicio Geológico Minero Argentino; Argentina
Materia
Fiambalá Complex
layered mafic intrusion
Platinum group elements
Lower Paleozoic
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:11336/159268
Acceder
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network_name_str CONICET Digital (CONICET)
spelling A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, ArgentinaVillar, Luisa MariaChernicoff, Carlos JorgeFiambalá Complexlayered mafic intrusionPlatinum group elementsLower Paleozoichttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Cr+Ni+Co+PGE elements occurring at the Sierra de Fiambalá, Argentina (ca. 27º 49’ S - 67º 30’ W) are known to be genetically related to a Lower Paleozoic layered Ma c-Ultramafic (Fiambalá) Complex, where the mineralization is concentrated in the basal ultramafic layer formed by spinel dunites overlain by lherzolites, websterites and gabbronorites. The profiles of PGE fractionation of the Fiambalá lherzolites have the same characteristic signature –PGE concentrated in the sulfurized phase, with enrichment in Pt and Pd– of other layered mafic-ultramafic complexes such us the Bushveld and Stillwater complexes, developed in extensional contexts. The latter context may seem to be inconsistent with the Fiambalá Complex representing the root of a magmatic arc, but the fact that the locus of this Lower Paleozoic magmatic arc is known to have undergone extensive rifting during the Neoproterozoic (possibly up to Cambrian times) allows the present authors to propose that the Fiambalá Mafic-Ultramafic Complex has some geochemical and metalliferous inheritance from the predecessor extensional regime, whereby fragments of pre-existing MORB basement may have been assimilated into the parental magma of the Fiambalá Complex, represented by a number of samples collected near the western margin of the Complex, in the vicinity of a postulated feeder dykeFil: Villar, Luisa Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Chernicoff, Carlos Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Secretaría de Industria y Minería. Servicio Geológico Minero Argentino; ArgentinaARC Publications2019-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/159268Villar, Luisa Maria; Chernicoff, Carlos Jorge; A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina; ARC Publications; International Journal of Mining Science; 5; 3; 11-2019; 23-330328-23252454-9460CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.arcjournals.org/international-journal-of-mining-science/volume-5-issue-3/4info:eu-repo/semantics/altIdentifier/doi/10.20431/2454-9460.0503004info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:53:34Zoai:ri.conicet.gov.ar:11336/159268instacron: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:34982025-09-29 09:53:34.822CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina
title A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina
spellingShingle A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina
Villar, Luisa Maria
Fiambalá Complex
layered mafic intrusion
Platinum group elements
Lower Paleozoic
title_short A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina
title_full A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina
title_fullStr A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina
title_full_unstemmed A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina
title_sort A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina
dc.creator.none.fl_str_mv Villar, Luisa Maria
Chernicoff, Carlos Jorge
author Villar, Luisa Maria
author_facet Villar, Luisa Maria
Chernicoff, Carlos Jorge
author_role author
author2 Chernicoff, Carlos Jorge
author2_role author
dc.subject.none.fl_str_mv Fiambalá Complex
layered mafic intrusion
Platinum group elements
Lower Paleozoic
topic Fiambalá Complex
layered mafic intrusion
Platinum group elements
Lower Paleozoic
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 Cr+Ni+Co+PGE elements occurring at the Sierra de Fiambalá, Argentina (ca. 27º 49’ S - 67º 30’ W) are known to be genetically related to a Lower Paleozoic layered Ma c-Ultramafic (Fiambalá) Complex, where the mineralization is concentrated in the basal ultramafic layer formed by spinel dunites overlain by lherzolites, websterites and gabbronorites. The profiles of PGE fractionation of the Fiambalá lherzolites have the same characteristic signature –PGE concentrated in the sulfurized phase, with enrichment in Pt and Pd– of other layered mafic-ultramafic complexes such us the Bushveld and Stillwater complexes, developed in extensional contexts. The latter context may seem to be inconsistent with the Fiambalá Complex representing the root of a magmatic arc, but the fact that the locus of this Lower Paleozoic magmatic arc is known to have undergone extensive rifting during the Neoproterozoic (possibly up to Cambrian times) allows the present authors to propose that the Fiambalá Mafic-Ultramafic Complex has some geochemical and metalliferous inheritance from the predecessor extensional regime, whereby fragments of pre-existing MORB basement may have been assimilated into the parental magma of the Fiambalá Complex, represented by a number of samples collected near the western margin of the Complex, in the vicinity of a postulated feeder dyke
Fil: Villar, Luisa Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chernicoff, Carlos Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Secretaría de Industria y Minería. Servicio Geológico Minero Argentino; Argentina
description The Cr+Ni+Co+PGE elements occurring at the Sierra de Fiambalá, Argentina (ca. 27º 49’ S - 67º 30’ W) are known to be genetically related to a Lower Paleozoic layered Ma c-Ultramafic (Fiambalá) Complex, where the mineralization is concentrated in the basal ultramafic layer formed by spinel dunites overlain by lherzolites, websterites and gabbronorites. The profiles of PGE fractionation of the Fiambalá lherzolites have the same characteristic signature –PGE concentrated in the sulfurized phase, with enrichment in Pt and Pd– of other layered mafic-ultramafic complexes such us the Bushveld and Stillwater complexes, developed in extensional contexts. The latter context may seem to be inconsistent with the Fiambalá Complex representing the root of a magmatic arc, but the fact that the locus of this Lower Paleozoic magmatic arc is known to have undergone extensive rifting during the Neoproterozoic (possibly up to Cambrian times) allows the present authors to propose that the Fiambalá Mafic-Ultramafic Complex has some geochemical and metalliferous inheritance from the predecessor extensional regime, whereby fragments of pre-existing MORB basement may have been assimilated into the parental magma of the Fiambalá Complex, represented by a number of samples collected near the western margin of the Complex, in the vicinity of a postulated feeder dyke
publishDate 2019
dc.date.none.fl_str_mv 2019-11
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/11336/159268
Villar, Luisa Maria; Chernicoff, Carlos Jorge; A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina; ARC Publications; International Journal of Mining Science; 5; 3; 11-2019; 23-33
0328-2325
2454-9460
CONICET Digital
CONICET
url http://hdl.handle.net/11336/159268
identifier_str_mv Villar, Luisa Maria; Chernicoff, Carlos Jorge; A review of the Metalliferous Mineralization of the Lower Paleozoic Fiambalá Mafic-Ultramafic Complex, Argentina; ARC Publications; International Journal of Mining Science; 5; 3; 11-2019; 23-33
0328-2325
2454-9460
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.arcjournals.org/international-journal-of-mining-science/volume-5-issue-3/4
info:eu-repo/semantics/altIdentifier/doi/10.20431/2454-9460.0503004
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 ARC Publications
publisher.none.fl_str_mv ARC Publications
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 13.070432

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