Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/2317-4889201820170124 http://hdl.handle.net/11449/184265 |
Resumo: | The C1-Santaluz gold deposit is located in the Itapicuru greenstone belt in Bahia State, Brazil. Metavolcanic and metasedimentary rocks dominate at the base and top, respectively. The ore minerals related to the auriferous mineralization are pyrite, arsenopyrite, sphalerite, chalcopyrite and stibnite. Arsenopyrite is related to, and associated with the presence of gold in quartz veins, a feature which is detected by scanning electron microscope analyses. The deposit is structurally complex, with tree deformational phases being recognized: Dn-1, D-n, and Dn+1. Phases Dn-1 and D-n have a direct relation to the mineralization, and mineralized quartz veins are parallel to the S-n foliation (S-0//Sn-1//S-n). The intersection between the S-0//Sn-1 bedding and the S-n foliation generates an intersection lineation parallel to the D-n fold axis, plunging to the NW, which has favored an increase in the volume of mineralized bodies. |
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Repositório Institucional da UNESP |
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Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of BrazilStructural settingsauriferous mineralizationsulfide assemblageThe C1-Santaluz gold deposit is located in the Itapicuru greenstone belt in Bahia State, Brazil. Metavolcanic and metasedimentary rocks dominate at the base and top, respectively. The ore minerals related to the auriferous mineralization are pyrite, arsenopyrite, sphalerite, chalcopyrite and stibnite. Arsenopyrite is related to, and associated with the presence of gold in quartz veins, a feature which is detected by scanning electron microscope analyses. The deposit is structurally complex, with tree deformational phases being recognized: Dn-1, D-n, and Dn+1. Phases Dn-1 and D-n have a direct relation to the mineralization, and mineralized quartz veins are parallel to the S-n foliation (S-0//Sn-1//S-n). The intersection between the S-0//Sn-1 bedding and the S-n foliation generates an intersection lineation parallel to the D-n fold axis, plunging to the NW, which has favored an increase in the volume of mineralized bodies.Univ Estadual Paulista, Inst Geociencias & Ciencias Exatas, Sao Paulo, SP, BrazilUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, Sao Paulo, SP, BrazilSoc Brasileira GeologiaUniversidade Estadual Paulista (Unesp)Cirillo de Assis, Jose Antonio [UNESP]Luvizotto, George Luiz [UNESP]2019-10-04T11:56:21Z2019-10-04T11:56:21Z2018-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article651-670application/pdfhttp://dx.doi.org/10.1590/2317-4889201820170124Brazilian Journal Of Geology. Sao Paulo: Soc Brasileira Geologia, v. 48, n. 4, p. 651-670, 2018.2317-4889http://hdl.handle.net/11449/18426510.1590/2317-4889201820170124S2317-48892018000400651WOS:000455441300001S2317-48892018000400651.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal Of Geologyinfo:eu-repo/semantics/openAccess2023-10-28T06:13:13Zoai:repositorio.unesp.br:11449/184265Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:19:20.434473Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil |
title |
Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil |
spellingShingle |
Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil Cirillo de Assis, Jose Antonio [UNESP] Structural settings auriferous mineralization sulfide assemblage |
title_short |
Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil |
title_full |
Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil |
title_fullStr |
Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil |
title_full_unstemmed |
Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil |
title_sort |
Gold deposits in poly-deformed metasedimentary rocs: a case study of the C1-Santaluz gold deposit, Itapicuru Greenstone Belt, Northeast of Brazil |
author |
Cirillo de Assis, Jose Antonio [UNESP] |
author_facet |
Cirillo de Assis, Jose Antonio [UNESP] Luvizotto, George Luiz [UNESP] |
author_role |
author |
author2 |
Luvizotto, George Luiz [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Cirillo de Assis, Jose Antonio [UNESP] Luvizotto, George Luiz [UNESP] |
dc.subject.por.fl_str_mv |
Structural settings auriferous mineralization sulfide assemblage |
topic |
Structural settings auriferous mineralization sulfide assemblage |
description |
The C1-Santaluz gold deposit is located in the Itapicuru greenstone belt in Bahia State, Brazil. Metavolcanic and metasedimentary rocks dominate at the base and top, respectively. The ore minerals related to the auriferous mineralization are pyrite, arsenopyrite, sphalerite, chalcopyrite and stibnite. Arsenopyrite is related to, and associated with the presence of gold in quartz veins, a feature which is detected by scanning electron microscope analyses. The deposit is structurally complex, with tree deformational phases being recognized: Dn-1, D-n, and Dn+1. Phases Dn-1 and D-n have a direct relation to the mineralization, and mineralized quartz veins are parallel to the S-n foliation (S-0//Sn-1//S-n). The intersection between the S-0//Sn-1 bedding and the S-n foliation generates an intersection lineation parallel to the D-n fold axis, plunging to the NW, which has favored an increase in the volume of mineralized bodies. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-10-01 2019-10-04T11:56:21Z 2019-10-04T11:56:21Z |
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://dx.doi.org/10.1590/2317-4889201820170124 Brazilian Journal Of Geology. Sao Paulo: Soc Brasileira Geologia, v. 48, n. 4, p. 651-670, 2018. 2317-4889 http://hdl.handle.net/11449/184265 10.1590/2317-4889201820170124 S2317-48892018000400651 WOS:000455441300001 S2317-48892018000400651.pdf |
url |
http://dx.doi.org/10.1590/2317-4889201820170124 http://hdl.handle.net/11449/184265 |
identifier_str_mv |
Brazilian Journal Of Geology. Sao Paulo: Soc Brasileira Geologia, v. 48, n. 4, p. 651-670, 2018. 2317-4889 10.1590/2317-4889201820170124 S2317-48892018000400651 WOS:000455441300001 S2317-48892018000400651.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Journal Of Geology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
651-670 application/pdf |
dc.publisher.none.fl_str_mv |
Soc Brasileira Geologia |
publisher.none.fl_str_mv |
Soc Brasileira Geologia |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128632619532288 |