Please use this identifier to cite or link to this item: https://rigeo.cprm.gov.br/handle/doc/18775
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dc.contributor.authorSILVA, Guilherme Ferreira da-
dc.contributor.authorRIBEIRO, Thyago de J.-
dc.contributor.authorCORRÊA, Lívio W. C.-
dc.contributor.authorSILVA, Dalton Rosemberg V. da-
dc.contributor.authorOLIVEIRA, Carlos E. S. de-
dc.date.accessioned2017-12-20T08:35:29Z-
dc.date.available2017-12-20T08:35:29Z-
dc.date.issued2017-05-
dc.identifier.citationSILVA, Guilherme Ferreira da et al. Occurrence of chromiferous horizon in the Trincheira Complex, municipality of Corumbiara, southeast of the State of Rondônia, Brazil. Technical report, Brasília, n. 11, may 2017.pt_BR
dc.identifier.issn2448-2242-
dc.identifier.urihttps://rigeo.cprm.gov.br/handle/doc/18775-
dc.description.abstractThe Trincheira Mafic-ultramafic Complex comprises a Mesoproterozoic layered intrusion hosted in metasedimentary rocks of the southwestern portion of the Amazonian Craton. This intrusion has an outcropping area of approximately 35 km2 , however, it has been associated to a larger ellipsoidal magnetic anomaly with N-S elongated shape. The Trincheira Complex is com-posed of partially metamorphosed pyroxenites, websterites, gabbros and anorthosites. The complex hosts Cr-rich layers associated to relevant concentrations of Ni. High concentrations of Cu, Co and V have also been detected. Preliminary analysis performed with portable X-ray diffraction indicates up to 13% Cr and occurrence of cochromite, a special variety of chromite enriched in cobalt, nickel and iron, whereas ICP-MS analyses returned concentrations of up to ~3600 ppm Cr.pt_BR
dc.language.isoenpt_BR
dc.publisherCPRMpt_BR
dc.rightsopenpt_BR
dc.subjectINTRUSÕES MÁFICO-ULTRAMÁFICASpt_BR
dc.subjectROCHAS CUMULÁTICASpt_BR
dc.subjectCRÁTON AMAZÔNICOpt_BR
dc.subjectCOMPLEXO TRINCHEIRApt_BR
dc.subjectCORUMBIARApt_BR
dc.subjectRONDÔNIApt_BR
dc.titleOccurrence of chromiferous horizon in the Trincheira Complex, municipality of Corumbiara, southeast of the State of Rondônia, Brazilpt_BR
dc.typeArticlept_BR
dc.localBrasíliapt_BR
dc.subject.enMAFIC-ULTRAMAFIC INTRUSIONSpt_BR
dc.subject.enCUMULATE ROCKSpt_BR
dc.subject.enAMAZONIAN CRATONpt_BR
dc.subject.enTRINCHEIRA COMPLEXpt_BR
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