The Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralization

Detalhes bibliográficos
Autor(a) principal: Silva, Maria da Glória da
Data de Publicação: 2001
Outros Autores: Coelho, Carlos Eduardo Silva, Teixeira, João Batista Guimarães, Silva, Fernando César Alves da, Silva, Roberto Albuquerque, Souza, Jorge André Braz de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7726
Resumo: Texto completo: acesso restrito. p. 345-357
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spelling Silva, Maria da Glória daCoelho, Carlos Eduardo SilvaTeixeira, João Batista GuimarãesSilva, Fernando César Alves daSilva, Roberto AlbuquerqueSouza, Jorge André Braz deSilva, Maria da Glória daCoelho, Carlos Eduardo SilvaTeixeira, João Batista GuimarãesSilva, Fernando César Alves daSilva, Roberto AlbuquerqueSouza, Jorge André Braz de2013-01-03T15:57:15Z20010026-4598http://www.repositorio.ufba.br/ri/handle/ri/7726v. 36, n. 3-4Texto completo: acesso restrito. p. 345-357Shear-hosted gold deposits in the Rio Itapicuru greenstone belt occur within supracrustal rocks metamorphosed under greenschist to amphibolite facies conditions. Integration of host-rock geochemistry, fluid-inclusion studies, geochronology, and structural geology supports a model of metallogenic evolution intimately associated with a Paleoproterozoic history of tectonic convergence, involving early arc/back-arc magmatism, and subsequent collision and granitoid emplacement. In this context, gold mineralization occurred mainly during late collisional tectonism at ~2,050 Ma, and resulted from a crustal-scale hydrothermal system characterized by carbonic and low salinity aqueous-carbonic fluids of distinct sources. The fluids migrated and interacted with host rocks of different compositions. In the southern part of the belt, structurally controlled fluid circulation within iron-rich mafic rocks gave rise to the Weber gold belt, which contains the largest gold deposits of northeastern Brazil. In contrast, fluid–rock interaction with volcaniclastic–carbonaceous sedimentary rocks, both in the southern and northern parts of the belt, resulted in the development of relatively smaller deposits, suggesting that local-scale structural and lithological attributes were critical controls in the size of the deposits.Submitted by Suelen Reis (suelen_suzane@hotmail.com) on 2013-01-03T15:57:15Z No. of bitstreams: 1 silva.pdf: 551627 bytes, checksum: 62b0719d2111e92eaaa4679832aa9848 (MD5)Made available in DSpace on 2013-01-03T15:57:15Z (GMT). No. of bitstreams: 1 silva.pdf: 551627 bytes, checksum: 62b0719d2111e92eaaa4679832aa9848 (MD5) Previous issue date: 2001http://dx.doi.org/10.1007/s001260100173reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAThe Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralizationMineralium Depositainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINALsilva.pdfsilva.pdfapplication/pdf551627https://repositorio.ufba.br/bitstream/ri/7726/1/silva.pdf62b0719d2111e92eaaa4679832aa9848MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/7726/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTsilva.pdf.txtsilva.pdf.txtExtracted texttext/plain49138https://repositorio.ufba.br/bitstream/ri/7726/3/silva.pdf.txtd7cacf509886c511e615186cd741d510MD53ri/77262022-07-05 14:03:18.947oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:18Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv The Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralization
dc.title.alternative.pt_BR.fl_str_mv Mineralium Deposita
title The Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralization
spellingShingle The Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralization
Silva, Maria da Glória da
title_short The Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralization
title_full The Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralization
title_fullStr The Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralization
title_full_unstemmed The Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralization
title_sort The Rio Itapicuru greenstone belt, Bahia, Brazil: geologic evolution and review of gold mineralization
author Silva, Maria da Glória da
author_facet Silva, Maria da Glória da
Coelho, Carlos Eduardo Silva
Teixeira, João Batista Guimarães
Silva, Fernando César Alves da
Silva, Roberto Albuquerque
Souza, Jorge André Braz de
author_role author
author2 Coelho, Carlos Eduardo Silva
Teixeira, João Batista Guimarães
Silva, Fernando César Alves da
Silva, Roberto Albuquerque
Souza, Jorge André Braz de
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Silva, Maria da Glória da
Coelho, Carlos Eduardo Silva
Teixeira, João Batista Guimarães
Silva, Fernando César Alves da
Silva, Roberto Albuquerque
Souza, Jorge André Braz de
Silva, Maria da Glória da
Coelho, Carlos Eduardo Silva
Teixeira, João Batista Guimarães
Silva, Fernando César Alves da
Silva, Roberto Albuquerque
Souza, Jorge André Braz de
description Texto completo: acesso restrito. p. 345-357
publishDate 2001
dc.date.issued.fl_str_mv 2001
dc.date.accessioned.fl_str_mv 2013-01-03T15:57:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/7726
dc.identifier.issn.none.fl_str_mv 0026-4598
dc.identifier.number.pt_BR.fl_str_mv v. 36, n. 3-4
identifier_str_mv 0026-4598
v. 36, n. 3-4
url http://www.repositorio.ufba.br/ri/handle/ri/7726
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1007/s001260100173
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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