Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution

The Iberian Pyrite Belt (IPB) is recognized as having one of the major concentrations of volcanogenic massive sulfide (VMS) deposits on Earth. Original resources of about 2000 Mt of massive sulfides have been reported in the province. Recent classifications have considered the IPB deposits as the bi...

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Autores: Ruiz de Almodóvar Sel, Gabriel, Yesares Ortiz, María Dolores, Sáez Ramos, Reinaldo, Toscano Macías, Manuel, González Barrionuevo, Felipe, Pons, J. M.
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/17696
Acceso en línea:http://hdl.handle.net/10272/17696
Access Level:acceso abierto
Palabra clave:VMS
Textural evolution
Iberian Pyrite Belt
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spelling Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural EvolutionRuiz de Almodóvar Sel, GabrielYesares Ortiz, María DoloresSáez Ramos, ReinaldoToscano Macías, ManuelGonzález Barrionuevo, FelipePons, J. M.VMSTextural evolutionIberian Pyrite BeltThe Iberian Pyrite Belt (IPB) is recognized as having one of the major concentrations of volcanogenic massive sulfide (VMS) deposits on Earth. Original resources of about 2000 Mt of massive sulfides have been reported in the province. Recent classifications have considered the IPB deposits as the bimodal siliciclastic subtype, although major di erences can be recognized among them. The main ones concern the hosting rocks. To the north, volcanic and volcaniclastic depositional environments predominate, whereas to the south, black shale-hosted VMS prevail. The mineral composition is quite simple, with pyrite as the main mineral phase, and sphalerite, galena, and chalcopyrite as major components. A suite of minor minerals is also present, including arsenopyrite, tetrahedrite–tennantite, cobaltite, Sb–As–Bi sulfosalts, gold, and electrum. Common oxidized phases include magnetite, hematite, cassiterite, and barite. The spatial relationship between all these minerals provides a very rich textural framework. A careful textural analysis reported here leads to a general model for the genetic evolution of the IPB massive sulfides, including four main stages: (1) Sedimentary/diagenetic replacement process on hosting rocks; (2) sulfides recrystallization at rising temperature; (3) metal distillation and sulfides maturation related to late Sb-bearing hydrothermal fluids; and (4) metal remobilization associated with the Variscan tectonism. The proposed model can provide new tools for mineral exploration as well as for mining and metallurgy.MDPI20192019-11-0120192019-11-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/17696reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)InglésengSpanish Government [GL2016-79204-R] Not available Not availableopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/176962026-06-02T14:58:11Z
dc.title.none.fl_str_mv Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution
title Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution
spellingShingle Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution
Ruiz de Almodóvar Sel, Gabriel
VMS
Textural evolution
Iberian Pyrite Belt
title_short Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution
title_full Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution
title_fullStr Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution
title_full_unstemmed Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution
title_sort Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and Textural Evolution
dc.creator.none.fl_str_mv Ruiz de Almodóvar Sel, Gabriel
Yesares Ortiz, María Dolores
Sáez Ramos, Reinaldo
Toscano Macías, Manuel
González Barrionuevo, Felipe
Pons, J. M.
author Ruiz de Almodóvar Sel, Gabriel
author_facet Ruiz de Almodóvar Sel, Gabriel
Yesares Ortiz, María Dolores
Sáez Ramos, Reinaldo
Toscano Macías, Manuel
González Barrionuevo, Felipe
Pons, J. M.
author_role author
author2 Yesares Ortiz, María Dolores
Sáez Ramos, Reinaldo
Toscano Macías, Manuel
González Barrionuevo, Felipe
Pons, J. M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv VMS
Textural evolution
Iberian Pyrite Belt
topic VMS
Textural evolution
Iberian Pyrite Belt
description The Iberian Pyrite Belt (IPB) is recognized as having one of the major concentrations of volcanogenic massive sulfide (VMS) deposits on Earth. Original resources of about 2000 Mt of massive sulfides have been reported in the province. Recent classifications have considered the IPB deposits as the bimodal siliciclastic subtype, although major di erences can be recognized among them. The main ones concern the hosting rocks. To the north, volcanic and volcaniclastic depositional environments predominate, whereas to the south, black shale-hosted VMS prevail. The mineral composition is quite simple, with pyrite as the main mineral phase, and sphalerite, galena, and chalcopyrite as major components. A suite of minor minerals is also present, including arsenopyrite, tetrahedrite–tennantite, cobaltite, Sb–As–Bi sulfosalts, gold, and electrum. Common oxidized phases include magnetite, hematite, cassiterite, and barite. The spatial relationship between all these minerals provides a very rich textural framework. A careful textural analysis reported here leads to a general model for the genetic evolution of the IPB massive sulfides, including four main stages: (1) Sedimentary/diagenetic replacement process on hosting rocks; (2) sulfides recrystallization at rising temperature; (3) metal distillation and sulfides maturation related to late Sb-bearing hydrothermal fluids; and (4) metal remobilization associated with the Variscan tectonism. The proposed model can provide new tools for mineral exploration as well as for mining and metallurgy.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-11-01
2019
2019-11-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/17696
url http://hdl.handle.net/10272/17696
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Spanish Government [GL2016-79204-R] Not available Not available
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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