Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina

Autores
Pons, Agustina; D'annunzio, María Celeste; Strazzere, Leonardo; Cócola, María Agustina
Año de publicación
2019
Idioma
español castellano
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Andacollo Mining District is located on the west margin of the Cordillera del Viento, in the Neuquén province. The Buena Vista vein (Fig. 1a) is a mineralized structure emplaced in the Arroyo del Torreón Formation and located on Las Minas hill. It has NESO (N30 °E- N45 °E) direction and an average width of 3.5 meters. Five pulses were recognized. The first one (Fig. 1b, d) is composed by quartz (quartz I) in mosaic; the second (Fig. 1b) is formed by quartz veins with primary growth textures (quartz II) and the third one (Fig. 1c, d) is constituted by veins of anhedral quartz (quartz III). The fourth pulse (Fig. 1d) represents the formation of hydrothermal breccias from the previous pulses. The cement of the breccias is formed by microcrystalline quartz (quartz IV) pyrite, galena, sphalerite, chalcopyrite, marcasite, argentite and electrum (Fig. 1e, f, g). The fifth pulse is formed by calcite veins which cut the previous pulses. The mineralogical and microthermometric studies were made systematically in different positions within the Buena Vista vein with the objective of comparing the abundance of minerals and the characteristics of the hydrothermal fluids at different depths. From the surface to the deeper vein levels, silver content decrease, while sulfides and electrum increase. The fluids of the third pulse (Fig. 1c, d), prior to the mineralization episode, had minimum temperatures between 210 and 278ºC and an average salinity of 1,37% wt. NaCl eq and show dilution and cooling processes.
Fil: Pons, Agustina. Universidad Nacional del Sur; Argentina
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. Universidad Nacional del Sur; Argentina
Fil: Strazzere, Leonardo. 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: Cócola, María Agustina. 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
XIII Congreso de mineralogía, petrología ígnea y metamórfica, y metalogénesis
Cordoba
Argentina
Asociación Geológica Argentina
Materia
Formación Arroyo del Torreón
secuencia paragenética
zonación vertical
inclusiones fluidas
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:11336/259013
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, ArgentinaPons, AgustinaD'annunzio, María CelesteStrazzere, LeonardoCócola, María AgustinaFormación Arroyo del Torreónsecuencia paragenéticazonación verticalinclusiones fluidashttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Andacollo Mining District is located on the west margin of the Cordillera del Viento, in the Neuquén province. The Buena Vista vein (Fig. 1a) is a mineralized structure emplaced in the Arroyo del Torreón Formation and located on Las Minas hill. It has NESO (N30 °E- N45 °E) direction and an average width of 3.5 meters. Five pulses were recognized. The first one (Fig. 1b, d) is composed by quartz (quartz I) in mosaic; the second (Fig. 1b) is formed by quartz veins with primary growth textures (quartz II) and the third one (Fig. 1c, d) is constituted by veins of anhedral quartz (quartz III). The fourth pulse (Fig. 1d) represents the formation of hydrothermal breccias from the previous pulses. The cement of the breccias is formed by microcrystalline quartz (quartz IV) pyrite, galena, sphalerite, chalcopyrite, marcasite, argentite and electrum (Fig. 1e, f, g). The fifth pulse is formed by calcite veins which cut the previous pulses. The mineralogical and microthermometric studies were made systematically in different positions within the Buena Vista vein with the objective of comparing the abundance of minerals and the characteristics of the hydrothermal fluids at different depths. From the surface to the deeper vein levels, silver content decrease, while sulfides and electrum increase. The fluids of the third pulse (Fig. 1c, d), prior to the mineralization episode, had minimum temperatures between 210 and 278ºC and an average salinity of 1,37% wt. NaCl eq and show dilution and cooling processes.Fil: Pons, Agustina. Universidad Nacional del Sur; ArgentinaFil: 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. Universidad Nacional del Sur; ArgentinaFil: Strazzere, Leonardo. 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: Cócola, María Agustina. 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; ArgentinaXIII Congreso de mineralogía, petrología ígnea y metamórfica, y metalogénesisCordobaArgentinaAsociación Geológica ArgentinaAsociación Mineralógica Argentina2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/259013Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina; XIII Congreso de mineralogía, petrología ígnea y metamórfica, y metalogénesis; Cordoba; Argentina; 2019; 371-372978-987-86-1704-6CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/http://minmet-pimma-2019.congresos.unc.edu.ar/wp-content/uploads/sites/74/2019/08/Acta-Completa-XIII-Minmet-Pimma.pdfNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:05Zoai:ri.conicet.gov.ar:11336/259013instacron: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 09:56:05.468CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina
title Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina
spellingShingle Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina
Pons, Agustina
Formación Arroyo del Torreón
secuencia paragenética
zonación vertical
inclusiones fluidas
title_short Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina
title_full Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina
title_fullStr Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina
title_full_unstemmed Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina
title_sort Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina
dc.creator.none.fl_str_mv Pons, Agustina
D'annunzio, María Celeste
Strazzere, Leonardo
Cócola, María Agustina
author Pons, Agustina
author_facet Pons, Agustina
D'annunzio, María Celeste
Strazzere, Leonardo
Cócola, María Agustina
author_role author
author2 D'annunzio, María Celeste
Strazzere, Leonardo
Cócola, María Agustina
author2_role author
author
author
dc.subject.none.fl_str_mv Formación Arroyo del Torreón
secuencia paragenética
zonación vertical
inclusiones fluidas
topic Formación Arroyo del Torreón
secuencia paragenética
zonación vertical
inclusiones fluidas
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 Andacollo Mining District is located on the west margin of the Cordillera del Viento, in the Neuquén province. The Buena Vista vein (Fig. 1a) is a mineralized structure emplaced in the Arroyo del Torreón Formation and located on Las Minas hill. It has NESO (N30 °E- N45 °E) direction and an average width of 3.5 meters. Five pulses were recognized. The first one (Fig. 1b, d) is composed by quartz (quartz I) in mosaic; the second (Fig. 1b) is formed by quartz veins with primary growth textures (quartz II) and the third one (Fig. 1c, d) is constituted by veins of anhedral quartz (quartz III). The fourth pulse (Fig. 1d) represents the formation of hydrothermal breccias from the previous pulses. The cement of the breccias is formed by microcrystalline quartz (quartz IV) pyrite, galena, sphalerite, chalcopyrite, marcasite, argentite and electrum (Fig. 1e, f, g). The fifth pulse is formed by calcite veins which cut the previous pulses. The mineralogical and microthermometric studies were made systematically in different positions within the Buena Vista vein with the objective of comparing the abundance of minerals and the characteristics of the hydrothermal fluids at different depths. From the surface to the deeper vein levels, silver content decrease, while sulfides and electrum increase. The fluids of the third pulse (Fig. 1c, d), prior to the mineralization episode, had minimum temperatures between 210 and 278ºC and an average salinity of 1,37% wt. NaCl eq and show dilution and cooling processes.
Fil: Pons, Agustina. Universidad Nacional del Sur; Argentina
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. Universidad Nacional del Sur; Argentina
Fil: Strazzere, Leonardo. 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: Cócola, María Agustina. 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
XIII Congreso de mineralogía, petrología ígnea y metamórfica, y metalogénesis
Cordoba
Argentina
Asociación Geológica Argentina
description The Andacollo Mining District is located on the west margin of the Cordillera del Viento, in the Neuquén province. The Buena Vista vein (Fig. 1a) is a mineralized structure emplaced in the Arroyo del Torreón Formation and located on Las Minas hill. It has NESO (N30 °E- N45 °E) direction and an average width of 3.5 meters. Five pulses were recognized. The first one (Fig. 1b, d) is composed by quartz (quartz I) in mosaic; the second (Fig. 1b) is formed by quartz veins with primary growth textures (quartz II) and the third one (Fig. 1c, d) is constituted by veins of anhedral quartz (quartz III). The fourth pulse (Fig. 1d) represents the formation of hydrothermal breccias from the previous pulses. The cement of the breccias is formed by microcrystalline quartz (quartz IV) pyrite, galena, sphalerite, chalcopyrite, marcasite, argentite and electrum (Fig. 1e, f, g). The fifth pulse is formed by calcite veins which cut the previous pulses. The mineralogical and microthermometric studies were made systematically in different positions within the Buena Vista vein with the objective of comparing the abundance of minerals and the characteristics of the hydrothermal fluids at different depths. From the surface to the deeper vein levels, silver content decrease, while sulfides and electrum increase. The fluids of the third pulse (Fig. 1c, d), prior to the mineralization episode, had minimum temperatures between 210 and 278ºC and an average salinity of 1,37% wt. NaCl eq and show dilution and cooling processes.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/259013
Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina; XIII Congreso de mineralogía, petrología ígnea y metamórfica, y metalogénesis; Cordoba; Argentina; 2019; 371-372
978-987-86-1704-6
CONICET Digital
CONICET
url http://hdl.handle.net/11336/259013
identifier_str_mv Mineralogía y Microtermometría de la Veta Buena Vista, Distrito Minero Andacollo, Neuquén, Argentina; XIII Congreso de mineralogía, petrología ígnea y metamórfica, y metalogénesis; Cordoba; Argentina; 2019; 371-372
978-987-86-1704-6
CONICET Digital
CONICET
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://minmet-pimma-2019.congresos.unc.edu.ar/wp-content/uploads/sites/74/2019/08/Acta-Completa-XIII-Minmet-Pimma.pdf
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dc.format.none.fl_str_mv application/pdf
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dc.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Asociación Mineralógica Argentina
publisher.none.fl_str_mv Asociación Mineralógica Argentina
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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