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dc.contributor.authorLacerda, Luiz Drude de-
dc.contributor.authorPaula, Francisco Carlos Fernandes de-
dc.contributor.authorOvalle, Alvaro Ramon Coelho-
dc.contributor.authorPfeiffer, Wolfgang Christian-
dc.contributor.authorMalm, Olaf-
dc.date.accessioned2022-06-15T13:31:17Z-
dc.date.available2022-06-15T13:31:17Z-
dc.date.issued1990-
dc.identifier.citationLACERDA, L. D.; PAULA, F. C.; OVALLE, A. R.; PFEIFFER, W. C.; MALM, O. Trace metals in fluvial sediments of the Madeira River watershed, Amazon, Brazil. Science of the Total Environment, Netherlands, v. 97-98, p. 525-530, 1990.pt_BR
dc.identifier.issn1879-1026-
dc.identifier.urihttp://www.repositorio.ufc.br/handle/riufc/66460-
dc.description.abstractSediment samples from 10 rivers of the Madeira River watershed, Amazon, were analyzed for major and trace element composition. Differences among river classes (white, clear and black water) were detected, in particular regarding the organic matter content, the concentration of bioelements, and the trace metals Fe, Mn, Cu and Zn. This shows that the classical differentiation of Amazon rivers based on water chemistry is also confirmed by sediments. Sequential extraction oftrace metals showed that the lithogeneous and reducible fractions of sediments are the principal substrates of trace metal transport in these fluvial systemspt_BR
dc.language.isoenpt_BR
dc.publisherScience of the Total Environmentpt_BR
dc.subjectSedimentpt_BR
dc.subjectBiogeochemistrypt_BR
dc.subjectAmazon Riverpt_BR
dc.subjectSedimentospt_BR
dc.subjectBioquÍmicapt_BR
dc.subjectRio Amazonaspt_BR
dc.titleTrace metals in fluvial sediments of the Madeira River watershed, Amazon, Brazilpt_BR
dc.typeArtigo de Periódicopt_BR
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