Please use this identifier to cite or link to this item: http://rigeo.cprm.gov.br/jspui/handle/doc/16454
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dc.contributor.authorPRADO, Elias Martins Guerra-
dc.contributor.authorBERGAMI, Gustavo Negrello-
dc.contributor.authorSILVA, Luciano Castro da-
dc.contributor.authorRODRIGUES, Thiago Reis-
dc.contributor.authorGUERRA, Guilherme Iolino Troncon-
dc.contributor.authorSOUZA, Anderson Alves-
dc.contributor.authorCAMPOS, Leandro Duarte-
dc.date.accessioned2016-07-06T15:37:01Z-
dc.date.available2016-07-06T15:37:01Z-
dc.date.issued2016-
dc.identifier.citationPRADO, Elias Martins Guerra et al. Ocorrência inédita de Cu-Pb em gossan e brechas hidrotermais no Grupo Nova Brasilândia, Estado de Rondônia: resultados, perspectivas e interpretações preliminares. Informe técnico, Brasília, n. 7, jun. 2016. p. 1-8.pt_BR
dc.identifier.issn2448-2242-
dc.identifier.urihttp://rigeo.cprm.gov.br/jspui/handle/doc/16454-
dc.description.abstractCopper and lead-bearing breccia and gossan were found at the outskirts of Rolim de Moura, southeastern Rondonia State, during geological mapping. Gossans and hydrothermal breccia are hosted by the paragnaisses of Nova Brasilândia Group, which, at the studied area, is composed of banded iron formation, sillimanite-biotite-muscovite gneiss, metagabbro and metatonalite, deformed and metamorphosed during the Sunsás orogeny. The hydrothermal system consists of strongly oxidized massif sulfide zones (gossans), iron oxide veinlets and stockworks, silicate breccia and quartz veins. Hydrothermal alteration was mapped continuously along a 2,5 km ESE-WNW trend. ICP OES/ICP MS chemical analyses returned values up to 1668 ppm Cu and 46.9 ppm Pb in whole-rock gossan powders. Portable XRF results yielded copper, lead and zinc grades up to 800 ppm Cu, 720 ppm Pb and 150 ppm Zn in whole-rock gossan powders. Programmed petrographic, SEM, XRD and whole-rock geochemistry studies will help to better characterize the mineralization.pt_BR
dc.language.isopt_BRpt_BR
dc.publisherCPRMpt_BR
dc.rightsopenpt_BR
dc.subjectRECURSOS MINERAISpt_BR
dc.subjectMETALOGENIApt_BR
dc.subjectBRECHA HIDROTERMALpt_BR
dc.subjectGOSSANpt_BR
dc.subjectBRASILpt_BR
dc.subjectRONDÔNIApt_BR
dc.subjectGRUPO NOVA BRASILÂNDIApt_BR
dc.titleOcorrência inédita de Cu-Pb em gossan e brechas hidrotermais no Grupo Nova Brasilândia, Estado de Rondônia: resultados, perspectivas e interpretações preliminarespt_BR
dc.typeArticlept_BR
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