OSL dating of sediments from Negro and Solimoes rivers - Amazon, Brazil

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dc.contributor.author Fiore, M.
dc.contributor.author Soares, E. A. A.
dc.contributor.author Mittani, Juan Carlos Ramirez
dc.contributor.author Yee, Marcio
dc.contributor.author Tatumi, Sonia Hatsue [UNIFESP]
dc.date.accessioned 2016-01-24T14:35:15Z
dc.date.available 2016-01-24T14:35:15Z
dc.date.issued 2014-02-01
dc.identifier http://dx.doi.org/10.1016/j.radphyschem.2012.12.041
dc.identifier.citation Radiation Physics and Chemistry. Oxford: Pergamon-Elsevier B.V., v. 95, p. 113-115, 2014.
dc.identifier.issn 0969-806X
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/37388
dc.description.abstract In this work, the OSL dating results of Quaternary fluvial deposits from the confluence of Negro and Solimoes rivers were studied. the equivalent doses (D-e) of sediments were obtained using a Single Aliquot Regeneration (SAR) protocol. Statistic studies were made using frequency histogram, weighted histogram and Radial plot in order to analyze the D-e fluctuations. Ages from 74.5 to 205 thousand of years (Pleistocene) were recorded. the gamma-ray spectroscopy was used to evaluate the natural radioisotopes concentrations of the samples and low concentrations were found with values between 0.64 and 3.71 ppm for U-235 and U-238; 2.01-9.77 ppm for Th-232; already, for K-40, the concentration was negligible. the OSL dating of sediments has contributed to a better understanding of the evolution of Negro and Solimbes rivers, in Amazon, Brazil. (C) 2013 Elsevier B.V. All rights reserved. en
dc.description.sponsorship Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorship Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent 113-115
dc.language.iso eng
dc.publisher Elsevier B.V.
dc.relation.ispartof Radiation Physics and Chemistry
dc.rights Acesso restrito
dc.subject Amazon en
dc.subject OSL en
dc.subject Sediments en
dc.subject SAR Protocol en
dc.title OSL dating of sediments from Negro and Solimoes rivers - Amazon, Brazil en
dc.type Artigo
dc.rights.license http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.contributor.institution Fac Tecnol São Paulo FATEC SP
dc.contributor.institution Univ Fed Amazonas
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.description.affiliation Fac Tecnol São Paulo FATEC SP, BR-01124060 São Paulo, Brazil
dc.description.affiliation Univ Fed Amazonas, Manaus, Amazonas, Brazil
dc.description.affiliation Universidade Federal de São Paulo, BR-11030900 Santos, Brazil
dc.description.affiliationUnifesp Universidade Federal de São Paulo, BR-11030900 Santos, Brazil
dc.description.sponsorshipID FAPESP: 2009/02069-2
dc.identifier.doi 10.1016/j.radphyschem.2012.12.041
dc.description.source Web of Science
dc.identifier.wos WOS:000329271400026



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