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	Provedor de dados ArchiMer (1) Autor Babinski, Marly (1) Boaventura, Geraldo (1) Dantas, Elton (1) Ferreira Araujo, Daniel (1) Garnier, Jeremie (1) Machado, Wilson (1) Mulholland, Daniel (1) Mais... Palavra-chave Environmental pollution (1) MC-ICP-MS (1) Mass spectrometry (1) Metal contamination (1) Stable isotopes (1) Weathering (1) Zinc isotopes (1) Mais... Tipo do documento Text (1) Ano 2020 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Determining sedimentary material sources in a Brazilian urban lake using Zn stable isotope compositions of bottom sediments: a preliminary study ArchiMer Ferreira Araujo, Daniel; Boaventura, Geraldo; Mulholland, Daniel; Garnier, Jeremie; Machado, Wilson; Babinski, Marly; Dantas, Elton. Zinc isotopes ratios provide qualitative and quantitative information about contributions from different Zn sources in the environment. Here we present the results of a preliminary study to identify the main sources controlling Zn isotope signatures of sediments from Lake Paranoá (Brazil), an urban water reservoir. The Zn isotope ratios were measured by MC-ICP-MS and expressed as δ66/64Zn notation relative to the JMC 3-0749-L solution. The studied sediments showed a narrow isotopic range (+0.00 to +0.13 ‰; n = 10) similar to that reported for intensely weathered soils worldwide (from -0.4 to +0.2‰). The geoaccumulation index (Igeo) also suggests low or negligible influence of Zn anthropogenic source. This research provides a baseline assessment of the Zn... Tipo: Text Palavras-chave: Stable isotopes; MC-ICP-MS; Mass spectrometry; Environmental pollution; Metal contamination; Weathering; Zinc isotopes. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00666/77763/79899.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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