Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil

Detalhes bibliográficos
Autor(a) principal: KLEIN, Evandro Luiz
Data de Publicação: 2009
Outros Autores: LAFON, Jean-Michel, BRITO, Reinaldo S.C., VASCONCELOS, Paulo
Tipo de documento: Capítulo de livro
Idioma: eng
Título da fonte: Repositório Institucional de Geociências - RIGEO
Texto Completo: https://rigeo.cprm.gov.br/handle/doc/481
Resumo: Panorama do conhecimento geológico do X Simpósio de Geologia da Amazônia, realizado em Porto Velho, Rondônia, no período de 11 a 15 de novembro de 2007. Autoria da Obra: KLEIN, Evandro Luiz; LAFON, Jean-Michel; BRITO, Reinaldo S.C.; VASCONCELOS, Paulo
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spelling KLEIN, Evandro LuizLAFON, Jean-MichelBRITO, Reinaldo S.C.VASCONCELOS, Paulo2013-12-19T16:30:36Z2013-12-19T16:30:36Z2009KLEIN, Evandro Luiz; LAFON, Jean-Michel; BRITO, Reinaldo S.C.; VASCONCELOS, Paulo. Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil. In: REIS, N.J.; MONTEIRO, M.A.S. Contribuições à Geologia da Amazônia. Belém: SBG. Núcleo Norte, 2009. p. 19-38.https://rigeo.cprm.gov.br/handle/doc/481Panorama do conhecimento geológico do X Simpósio de Geologia da Amazônia, realizado em Porto Velho, Rondônia, no período de 11 a 15 de novembro de 2007. Autoria da Obra: KLEIN, Evandro Luiz; LAFON, Jean-Michel; BRITO, Reinaldo S.C.; VASCONCELOS, PauloThe Ipitinga Auriferous District (SE-Guyana Shield, NW-Pará state) contains vein-quartz gold occurrences hosted in Paleoproterozoic metavolcano-sedimentary sequences and associated granitoids, especially near the contact between the granitoids and the supracrustal rocks. The structurally-controlled deposits are hosted in ductile shear zones and in foliation planes of the host rocks, have sericitization as the main important proximal alteration, and have small amounts of sulfi de minerals in the ore paragenesis. Fluid inclusion types and properties are similar in most of the deposits. The aqueous-carbonic inclusions, with small to moderate amounts of CH4 (locally C2H6) are the predominant types. These inclusions have low salinity (~5 wt. % NaCl equiv.) and homogenized between 290° and 355°C. Carará differs from this pattern in that it shows only water-free CO2-bearing inclusions, the origin of which is still uncertain. Oxygen and hydrogen isotope compositions overlap the fields of magmatic and metamorphic waters, except at Carará that clearly shows a metamorphic source for the hydrothermal fl uid. Integrated geologic characteristics, and fl uid inclusion and isotopic results are consistent with the class of orogenic gold deposits. The characteristics reported in the literature for the Serra do Ipitinga Au occurrence strongly differs from those presented by the studied deposits in the district and probably belong to another class of deposit. Pb-Pb and 40Ar-39Ar systematics have not succeed in determining the age of the mineralizing event in the Ipitinga Auriferous District, but bracketed a time window for mineralization between 1940 and 2030 MaSBG. Núcleo NorteGEOLOGIAINCLUSÕES FLUÍDASQUARTZOS HOSPEDADOSROCHAS VULCANOSSEDIMENTARESOUROISÓTOPOSCRÁTON AMAZÔNICOBRASILAMAZÔNIAFluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bookPartBelémengreponame:Repositório Institucional de Geociências - RIGEOinstname:Companhia de Pesquisa de Recursos Minerais (CPRM)instacron:CPRMinfo:eu-repo/semantics/openAccessORIGINALlivro_klein_ipitinga.pdflivro_klein_ipitinga.pdfproducao cientificaapplication/pdf4181563http://rigeo.cprm.gov.br/jspui/bitstream/doc/481/1/livro_klein_ipitinga.pdf1ff70adf91bf1b4bf8d11e18a35254bbMD51TEXTlivro_klein_ipitinga.pdf.txtlivro_klein_ipitinga.pdf.txtExtracted texttext/plain75043http://rigeo.cprm.gov.br/jspui/bitstream/doc/481/2/livro_klein_ipitinga.pdf.txt7c069fa36c3fc7a8285aad2b36d645cfMD52THUMBNAILlivro_klein_ipitinga.pdf.jpglivro_klein_ipitinga.pdf.jpgGenerated Thumbnailimage/jpeg1609http://rigeo.cprm.gov.br/jspui/bitstream/doc/481/3/livro_klein_ipitinga.pdf.jpg71750d3f2d8ecd82c3b338ebee3787d5MD53doc/4812023-01-16 07:54:19.817oai:rigeo.sgb.gov.br:doc/481Repositório InstitucionalONGhttps://rigeo.sgb.gov.br/oai/request https://rigeo.cprm.gov.br/oai/requestrigeo@sgb.gov.bropendoar:2023-01-16T10:54:19Repositório Institucional de Geociências - RIGEO - Companhia de Pesquisa de Recursos Minerais (CPRM)false
dc.title.none.fl_str_mv Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil
title Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil
spellingShingle Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil
KLEIN, Evandro Luiz
GEOLOGIA
INCLUSÕES FLUÍDAS
QUARTZOS HOSPEDADOS
ROCHAS VULCANOSSEDIMENTARES
OURO
ISÓTOPOS
CRÁTON AMAZÔNICO
BRASIL
AMAZÔNIA
title_short Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil
title_full Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil
title_fullStr Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil
title_full_unstemmed Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil
title_sort Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil
author KLEIN, Evandro Luiz
author_facet KLEIN, Evandro Luiz
LAFON, Jean-Michel
BRITO, Reinaldo S.C.
VASCONCELOS, Paulo
author_role author
author2 LAFON, Jean-Michel
BRITO, Reinaldo S.C.
VASCONCELOS, Paulo
author2_role author
author
author
dc.contributor.author.fl_str_mv KLEIN, Evandro Luiz
LAFON, Jean-Michel
BRITO, Reinaldo S.C.
VASCONCELOS, Paulo
dc.subject.por.fl_str_mv GEOLOGIA
INCLUSÕES FLUÍDAS
QUARTZOS HOSPEDADOS
ROCHAS VULCANOSSEDIMENTARES
OURO
ISÓTOPOS
CRÁTON AMAZÔNICO
BRASIL
AMAZÔNIA
topic GEOLOGIA
INCLUSÕES FLUÍDAS
QUARTZOS HOSPEDADOS
ROCHAS VULCANOSSEDIMENTARES
OURO
ISÓTOPOS
CRÁTON AMAZÔNICO
BRASIL
AMAZÔNIA
description Panorama do conhecimento geológico do X Simpósio de Geologia da Amazônia, realizado em Porto Velho, Rondônia, no período de 11 a 15 de novembro de 2007. Autoria da Obra: KLEIN, Evandro Luiz; LAFON, Jean-Michel; BRITO, Reinaldo S.C.; VASCONCELOS, Paulo
publishDate 2009
dc.date.issued.fl_str_mv 2009
dc.date.accessioned.fl_str_mv 2013-12-19T16:30:36Z
dc.date.available.fl_str_mv 2013-12-19T16:30:36Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/bookPart
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status_str publishedVersion
dc.identifier.citation.fl_str_mv KLEIN, Evandro Luiz; LAFON, Jean-Michel; BRITO, Reinaldo S.C.; VASCONCELOS, Paulo. Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil. In: REIS, N.J.; MONTEIRO, M.A.S. Contribuições à Geologia da Amazônia. Belém: SBG. Núcleo Norte, 2009. p. 19-38.
dc.identifier.uri.fl_str_mv https://rigeo.cprm.gov.br/handle/doc/481
identifier_str_mv KLEIN, Evandro Luiz; LAFON, Jean-Michel; BRITO, Reinaldo S.C.; VASCONCELOS, Paulo. Fluid inclusion and isotopic constraints on the genesis of vein-quartz gold deposits of the Ipitinga Auriferous District, SE-Guyana Shield, Brazil. In: REIS, N.J.; MONTEIRO, M.A.S. Contribuições à Geologia da Amazônia. Belém: SBG. Núcleo Norte, 2009. p. 19-38.
url https://rigeo.cprm.gov.br/handle/doc/481
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.publisher.none.fl_str_mv SBG. Núcleo Norte
publisher.none.fl_str_mv SBG. Núcleo Norte
dc.source.none.fl_str_mv reponame:Repositório Institucional de Geociências - RIGEO
instname:Companhia de Pesquisa de Recursos Minerais (CPRM)
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