Ocorrência inédita de Cu-Pb em gossan e brechas hidrotermais no Grupo Nova Brasilândia, Estado de Rondônia: resultados, perspectivas e interpretações preliminares

dc.creatorPRADO, Elias Martins Guerra
dc.creatorBERGAMI, Gustavo Negrello
dc.creatorSILVA, Luciano Castro da
dc.creatorRODRIGUES, Thiago Reis
dc.creatorGUERRA, Guilherme Iolino Troncon
dc.creatorSOUZA, Anderson Alves de
dc.creatorCAMPOS, Leandro Duarte
dc.date2016-07-06T15:37:01Z
dc.date2016-07-06T15:37:01Z
dc.date2016
dc.date.accessioned2023-10-03T21:04:25Z
dc.date.available2023-10-03T21:04:25Z
dc.identifierPRADO, 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.
dc.identifier2448-2242
dc.identifierhttps://rigeo.cprm.gov.br/handle/doc/16454
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9180655
dc.descriptionCopper 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.
dc.formatapplication/pdf
dc.languagept_BR
dc.publisherCPRM
dc.rightsopen
dc.subjectRECURSOS MINERAIS
dc.subjectMETALOGENIA
dc.subjectBRECHA HIDROTERMAL
dc.subjectGOSSAN
dc.subjectBRASIL
dc.subjectRONDÔNIA
dc.subjectGRUPO NOVA BRASILÂNDIA
dc.titleOcorrência inédita de Cu-Pb em gossan e brechas hidrotermais no Grupo Nova Brasilândia, Estado de Rondônia: resultados, perspectivas e interpretações preliminares
dc.typeArticle


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