2008
DOI: 10.1590/s0044-59672008000300014
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Química de elementos-traço nos sedimentos do Lago do Parú (Manacapuru - Amazonas), sob influência do pulso de inundação do baixo Rio Solimões

Abstract: O objetivo deste estudo foi determinar as concentrações totais e em frações geoquímicas de Fe, Mn, Co, Cu e Zn em sedimentos, coletados nos períodos de seca (2005) e cheia (2006) do Lago do Parú. Nas partículas de sedimento seco ao ar (SSA) < 45 µm foi feita uma extração seqüencial pelo método de Tessier et al. (1979) que separa os elementos nas frações geoquímicas trocável, carbonácea, oxídica, orgânica e residual. As amostras de extrato diluídas foram lidas em cada fração, por espectrometria de absorção a… Show more

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Cited by 2 publications
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“…Besides the LGC floodplain, one can note the Paru Lake floodplains system, mainly influenced by the Amazon River flood pulse but less impacted by anthropogenic actions [82]. The floodplains systems Pacoval, Aramanai, and Monte Alegre, however, were influenced by both Amazon floodplains and the Tapajós River flood pulse in some hydrograph phases [83].…”
Section: Study Areamentioning
confidence: 99%
“…Besides the LGC floodplain, one can note the Paru Lake floodplains system, mainly influenced by the Amazon River flood pulse but less impacted by anthropogenic actions [82]. The floodplains systems Pacoval, Aramanai, and Monte Alegre, however, were influenced by both Amazon floodplains and the Tapajós River flood pulse in some hydrograph phases [83].…”
Section: Study Areamentioning
confidence: 99%