Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina

Autores
Marquez Zavalia, Maria Florencia; Craig, James R.
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Mina Capillitas is an epithermal-type deposit located in Catamarca province of NW Argentina. Six separate stages of mineralization were identified in this complex Cu-Au-S-As-Sb-Pb-Zn association; the native elements (Au and Te) and Te minerals are concentrated in the fourth stage. Gold occurs as small grains with an average fineness of 920, hosted mainly by quartz and coexists with hübnerite and Bi minerals. Tellurium occurs locally in grains up to 10 μm in diameter, and is associated with the Te-bearing minerals of Au, Ag, Bi, Cu, and Ni. These Te minerals include krennerite, calaverite, sylvanite, petzite, hessite, stützite, goldfieldite, melonite, tetradymite, and possibly volynskite. The grains are generally arranged in larger polycrystalline aggregates. These minerals occur in quartz, generally accompanied by hübnerite, pyrite, chalcopyrite, and Bi- and Sn-bearing minerals. The mineralizing fluids cooled gradually with the typical temperatures ranges characteristic of epithermal systems. Based on the preponderance of the different gangue minerals, we suggest that the pH of the environment became progressively more basic after the third stage of mineralization. This mineral assemblage together with the fluid inclusion homogenization temperature data indicate that the log f S2 values declined as the fluids deposited the Te-bearing minerals. The absence of tellurium phases in the first three stages suggests that either the source of the tellurium had not yet been tapped or that the log f Te2 lay below -10 to -17, the minimum activity for the Te phases present in stage IV to form.
Fil: Marquez Zavalia, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Craig, James R.. University Of Waterloo; Canadá
Materia
Telluride
Gold
Silver
Goldfieldite
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:11336/40870

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spelling Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern ArgentinaMarquez Zavalia, Maria FlorenciaCraig, James R.TellurideGoldSilverGoldfielditehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Mina Capillitas is an epithermal-type deposit located in Catamarca province of NW Argentina. Six separate stages of mineralization were identified in this complex Cu-Au-S-As-Sb-Pb-Zn association; the native elements (Au and Te) and Te minerals are concentrated in the fourth stage. Gold occurs as small grains with an average fineness of 920, hosted mainly by quartz and coexists with hübnerite and Bi minerals. Tellurium occurs locally in grains up to 10 μm in diameter, and is associated with the Te-bearing minerals of Au, Ag, Bi, Cu, and Ni. These Te minerals include krennerite, calaverite, sylvanite, petzite, hessite, stützite, goldfieldite, melonite, tetradymite, and possibly volynskite. The grains are generally arranged in larger polycrystalline aggregates. These minerals occur in quartz, generally accompanied by hübnerite, pyrite, chalcopyrite, and Bi- and Sn-bearing minerals. The mineralizing fluids cooled gradually with the typical temperatures ranges characteristic of epithermal systems. Based on the preponderance of the different gangue minerals, we suggest that the pH of the environment became progressively more basic after the third stage of mineralization. This mineral assemblage together with the fluid inclusion homogenization temperature data indicate that the log f S2 values declined as the fluids deposited the Te-bearing minerals. The absence of tellurium phases in the first three stages suggests that either the source of the tellurium had not yet been tapped or that the log f Te2 lay below -10 to -17, the minimum activity for the Te phases present in stage IV to form.Fil: Marquez Zavalia, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Craig, James R.. University Of Waterloo; CanadáE Schweizerbartsche Verlags2004-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/40870Marquez Zavalia, Maria Florencia; Craig, James R.; Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina; E Schweizerbartsche Verlags; Neues Jahrbuch für Mineralogie - Monatshefte; 2004; 4; 31-4-2004; 176-1920077-7757CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1127/0028-3649/2004/2004-0176info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/njmm/detail/2004/58495/Tellurium_and_precious_metal_ore_minerals_at_Mina_Capillitas_Northwestern_Argentinainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:44:34Zoai:ri.conicet.gov.ar:11336/40870instacron: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 09:44:34.553CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina
title Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina
spellingShingle Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina
Marquez Zavalia, Maria Florencia
Telluride
Gold
Silver
Goldfieldite
title_short Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina
title_full Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina
title_fullStr Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina
title_full_unstemmed Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina
title_sort Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina
dc.creator.none.fl_str_mv Marquez Zavalia, Maria Florencia
Craig, James R.
author Marquez Zavalia, Maria Florencia
author_facet Marquez Zavalia, Maria Florencia
Craig, James R.
author_role author
author2 Craig, James R.
author2_role author
dc.subject.none.fl_str_mv Telluride
Gold
Silver
Goldfieldite
topic Telluride
Gold
Silver
Goldfieldite
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Mina Capillitas is an epithermal-type deposit located in Catamarca province of NW Argentina. Six separate stages of mineralization were identified in this complex Cu-Au-S-As-Sb-Pb-Zn association; the native elements (Au and Te) and Te minerals are concentrated in the fourth stage. Gold occurs as small grains with an average fineness of 920, hosted mainly by quartz and coexists with hübnerite and Bi minerals. Tellurium occurs locally in grains up to 10 μm in diameter, and is associated with the Te-bearing minerals of Au, Ag, Bi, Cu, and Ni. These Te minerals include krennerite, calaverite, sylvanite, petzite, hessite, stützite, goldfieldite, melonite, tetradymite, and possibly volynskite. The grains are generally arranged in larger polycrystalline aggregates. These minerals occur in quartz, generally accompanied by hübnerite, pyrite, chalcopyrite, and Bi- and Sn-bearing minerals. The mineralizing fluids cooled gradually with the typical temperatures ranges characteristic of epithermal systems. Based on the preponderance of the different gangue minerals, we suggest that the pH of the environment became progressively more basic after the third stage of mineralization. This mineral assemblage together with the fluid inclusion homogenization temperature data indicate that the log f S2 values declined as the fluids deposited the Te-bearing minerals. The absence of tellurium phases in the first three stages suggests that either the source of the tellurium had not yet been tapped or that the log f Te2 lay below -10 to -17, the minimum activity for the Te phases present in stage IV to form.
Fil: Marquez Zavalia, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Craig, James R.. University Of Waterloo; Canadá
description Mina Capillitas is an epithermal-type deposit located in Catamarca province of NW Argentina. Six separate stages of mineralization were identified in this complex Cu-Au-S-As-Sb-Pb-Zn association; the native elements (Au and Te) and Te minerals are concentrated in the fourth stage. Gold occurs as small grains with an average fineness of 920, hosted mainly by quartz and coexists with hübnerite and Bi minerals. Tellurium occurs locally in grains up to 10 μm in diameter, and is associated with the Te-bearing minerals of Au, Ag, Bi, Cu, and Ni. These Te minerals include krennerite, calaverite, sylvanite, petzite, hessite, stützite, goldfieldite, melonite, tetradymite, and possibly volynskite. The grains are generally arranged in larger polycrystalline aggregates. These minerals occur in quartz, generally accompanied by hübnerite, pyrite, chalcopyrite, and Bi- and Sn-bearing minerals. The mineralizing fluids cooled gradually with the typical temperatures ranges characteristic of epithermal systems. Based on the preponderance of the different gangue minerals, we suggest that the pH of the environment became progressively more basic after the third stage of mineralization. This mineral assemblage together with the fluid inclusion homogenization temperature data indicate that the log f S2 values declined as the fluids deposited the Te-bearing minerals. The absence of tellurium phases in the first three stages suggests that either the source of the tellurium had not yet been tapped or that the log f Te2 lay below -10 to -17, the minimum activity for the Te phases present in stage IV to form.
publishDate 2004
dc.date.none.fl_str_mv 2004-05-01
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/11336/40870
Marquez Zavalia, Maria Florencia; Craig, James R.; Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina; E Schweizerbartsche Verlags; Neues Jahrbuch für Mineralogie - Monatshefte; 2004; 4; 31-4-2004; 176-192
0077-7757
CONICET Digital
CONICET
url http://hdl.handle.net/11336/40870
identifier_str_mv Marquez Zavalia, Maria Florencia; Craig, James R.; Tellurium and precious-metal ore minerals at Mina Capillitas, Northwestern Argentina; E Schweizerbartsche Verlags; Neues Jahrbuch für Mineralogie - Monatshefte; 2004; 4; 31-4-2004; 176-192
0077-7757
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1127/0028-3649/2004/2004-0176
info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/njmm/detail/2004/58495/Tellurium_and_precious_metal_ore_minerals_at_Mina_Capillitas_Northwestern_Argentina
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 E Schweizerbartsche Verlags
publisher.none.fl_str_mv E Schweizerbartsche Verlags
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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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