Pedogeochemistry of ultramafic soils from the Córrego dos Boiadeiros Body, Quadrilátero Ferrífero, Minas Gerais, Brazil.

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dc.contributor.authorFernandes, Victor Matheus Tavares
dc.contributor.authorEvangelista, Hanna Jordt
dc.contributor.authorQueiroga, Gláucia Nascimento
dc.date.accessioned2019-05-09T13:11:30Z
dc.date.available2019-05-09T13:11:30Z
dc.date.issued2018
dc.description.abstractThe Córrego dos Boiadeiros Body (CBB) comprises a metaultramafic-metamafic sequence located in the vicinities of Nova Lima town, central area of the Quadrilátero Ferrífero province. The main rock type is a serpentinite that grades upwards to weathering mantles with well-preserved pedogenetic horizons composed, from bottom to top, of four facies: the R Horizon (Fresh rock facies), the C Horizon (Alterite facies), the B Horizon (Transition facies) and the A Horizon (Solum facies). This article presents the results of geochemical and mass balance studies along a representative pedogenetic profile in order to evaluate the chemical transformations concerning major, trace and Rare Earth Elements. From bottom to top of the selected profile, there is enrichment in Fe2O3, Al2O3 and depletion in MgO and SiO2. There are also relative gains of metallic elements as Ni, Co, V and loss of Au. Cr is enriched at the uppermost horizon. Pt is enriched at the basis of the profile, but decreases towards the upper layers. The weathering mantle is REE-enriched and shows major fractionating of LREE over HREE. In order to evaluate the economic potential of the lateritic deposits, especially concerning Cr content, additional chemical analyses should be distributed over the entire body and its surroundings.pt_BR
dc.identifier.citationFERNANDES, V. M. T.; EVANGELISTA, H. J.; QUEIROGA, G. N. Pedogeochemistry of ultramafic soils from the Córrego dos Boiadeiros Body, Quadrilátero Ferrífero, Minas Gerais, Brazil. REM - International Engineering Journal, v. 71, p. 571-578, 2018. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2018000400571&lng=en&tlng=en>. Acesso em: 08 fev. 2019.pt_BR
dc.identifier.doihttp://dx.doi.org/10.1590/0370-44672017710180pt_BR
dc.identifier.issn1807-0353
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/11238
dc.language.isoen_USpt_BR
dc.rightsabertopt_BR
dc.rights.licenseA REM - International Engineering Journal - autoriza o depósito de cópia de artigos dos professores e alunos da UFOP no Repositório Institucional da UFOP. Licença concedida mediante preenchimento de formulário online em: 12 set. 2013.pt_BR
dc.subjectGeochemistrypt_BR
dc.subjectMass balancept_BR
dc.titlePedogeochemistry of ultramafic soils from the Córrego dos Boiadeiros Body, Quadrilátero Ferrífero, Minas Gerais, Brazil.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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