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O chumbo na Província Mineira do Quadrilátero Ferrífero, Brasil: mapeamento geoquímico e valores de referência

2025-04Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
dc.contributor.authorde Vicq Ferreira da Costa, Raphael
dc.contributor.authorValente, Teresa
dc.contributor.authorLeão, Lucas
dc.contributor.authorLeite, Mariangela
dc.contributor.authorNalini Jr., Herminio
dc.date.accessioned2025-06-18T11:15:07Z
dc.date.available2025-06-18T11:15:07Z
dc.date.issued2025-04
dc.description.abstractRESUMO: A crescente industrialização associada à expansão da mineração tem proporcionado a poluição dos reservatórios ambientais, dentre os quais o Pb se destaca pelo seu caráter neurotóxico. No Quadrilátero Ferrífero, Minas Gerais, Brasil, o Pb ocorre principalmente associado ao Fe, que possui ampla distribuição e altas concentrações na região. Nesse contexto, um estudo regional realizou a coleta e análise de 541 amostras de águas superficiais e sedimentos de corrente em trechos de bacias de 3a ordem em toda a área. As concentrações de Pb nos sedimentos variaram de 1 a 107 mg.kg-1, com valor de referência de 59 mg.kg-1 com base na metodologia boxplot Upper Inner Fence (UIF). Nas águas superficiais, o Pb apresentou valor mediano de 8,3 μg.L-1, consideravelmente superior ao observado na Europa. A maior parte das anomalias foi encontrada está associada a determinados tipos litológicos (filitos e itabirites) e a locais impactados pela mineração.por
dc.description.abstractABSTRACT: The growing industrialization associated with mining expansion is responsible for the pollution of environmental reservoirs, among which Pb stands out due to its neurotoxic character. In the Iron Quadrangle, Minas Gerais, Brazil, Pb occurs mainly associated with Fe, which has a wide distribution and high concentrations in the region. In this context, a regional study carried out involved the collection and analysis of 541 samples of surface water and stream sediments in stretches of third-order basins throughout the entire area. Pb concentrations in stream sediments ranged from 1 to 107 mg.kg-1, with a reference value of 59 mg.kg-1 based on the boxplot Upper Inner Fence (UIF) methodology. In surface waters, Pb had a median value of 8.3 μg.L-1, considerably higher than that observed in Europe. Most of the anomalies found are associated with certain lithological types (phyllites and itabirites) and sites impacted by mining.eng
dc.identifier.citationVicq, R., Valente, T., Leão, L., Leite, M. & Nallini Júnior, H. A. (2025). O chumbo na Província Mineira do Quadrilátero Ferrífero, Brasil: mapeamento geoquímico e valores de referência. In: Comunicações Geológicas, 2025, vol. 112, Fascículo Especial I, pp. 323-327. https://doi.org/10.34637/01gy-ec39
dc.identifier.doi10.34637/01gy-ec39
dc.identifier.eissn1647-581X
dc.identifier.issn0873-948X
dc.identifier.urihttp://hdl.handle.net/10400.9/5870
dc.language.isopor
dc.peerreviewedyes
dc.publisherLNEG - Laboratório Nacional de Energia e Geologia
dc.relationINSTITUTE OF EARTH SCIENCES
dc.relationMINERALS OF ENVIRONMENTAL RELEVANCE IN ACID MINE DRAINAGE CONTAMINATED SYSTEMS: PROPERTIES AND REACTIVITY AT THE NANOSCALE
dc.relation.hasversionhttps://www.lneg.pt/wp-content/uploads/2025/04/64_Vicq-et-al.pdf
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectSupergrupo Minas
dc.subjectImpacto mineiro
dc.subjectDistribuição do Pb
dc.subjectValores de referência
dc.subjectAnomalias
dc.subjectMinas Supergroup
dc.subjectMining impact
dc.subjectPb distribution
dc.subjectBackground values
dc.subjectAnomalies
dc.titleO chumbo na Província Mineira do Quadrilátero Ferrífero, Brasil: mapeamento geoquímico e valores de referênciapor
dc.title.alternativeLead in the Iron Quadrangle Mining Province, Brazil: geochemical mapping and reference valueseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleINSTITUTE OF EARTH SCIENCES
oaire.awardTitleMINERALS OF ENVIRONMENTAL RELEVANCE IN ACID MINE DRAINAGE CONTAMINATED SYSTEMS: PROPERTIES AND REACTIVITY AT THE NANOSCALE
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04683%2F2020/PT
oaire.awardURIhttp://hdl.handle.net/10400.9/5830
oaire.citation.endPage327
oaire.citation.issueEspecial I
oaire.citation.startPage323
oaire.citation.titleComunicações Geológicas
oaire.citation.volume112
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream9471 - RIDTI
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamede Vicq Ferreira da Costa
person.familyNameValente
person.familyNameLeão
person.familyNameLeite
person.familyNameNalini Jr.
person.givenNameRaphael
person.givenNameTeresa
person.givenNameLucas
person.givenNameMariangela
person.givenNameHerminio
person.identifier.orcid0000-0002-2357-1215
person.identifier.orcid0000-0002-7293-3825
person.identifier.orcid0000-0002-3817-9208
person.identifier.orcid0000-0002-9789-3786
person.identifier.orcid0000-0001-8631-9693
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
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Volume 112 (2025) Fascículo Especial I - XI Congresso Nacional de Geologia