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Provenance studies in Amazon basin by means of chemical composition obtained by INAA

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Abstract

This study determines the provenance of the 106 sediments samples deposited by the Solimões and Negro rivers in the tectonic depressions in Manaus, Amazon state, Brazil. Twenty-four chemical elements in the sediment samples collected before the confluence of Negro and Solimões rivers have been determined using instrumental neutron activation analysis, INAA. It is inferred from the multivariate statistical methods that samples from the basin of the Solimões river and tectonic depression 1 (the most significant of the region) are not significantly different. These results indicate the contribution this river in the sedimentary fill during the evolution in the Quaternary.

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Acknowledgments

We thank the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for partial sponsoring of this research.

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Correspondence to José O. Santos.

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Santos, J.O., Munita, C.S. & Soares, E.A.A. Provenance studies in Amazon basin by means of chemical composition obtained by INAA. J Radioanal Nucl Chem 306, 713–719 (2015). https://doi.org/10.1007/s10967-015-4243-x

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  • DOI: https://doi.org/10.1007/s10967-015-4243-x

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