The U-isotopes modeling in aquifers from Pocos de Caldas plateau, Brazil

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dc.contributor.authorBonotto, Daniel Marcos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:20:22Z
dc.date.available2014-05-20T15:20:22Z
dc.date.issued2005-08-01
dc.description.abstractU-modeled groundwater residence times were estimated by changes in U-234/U-238 activity ratio (AR) and U content of groundwaters from Pocos de Caldas city situated at the Pocos de Caldas alkaline massif, Brazil. The estimated ages are more realistic than others generated by the use of hydraulic conductivity data and available information about the weathering rate of rocks in the plateau. The U-234/U-238 AR and reciprocal of the dissolved U-content data also defined a ternary plot that allowed the calculation of the relative volume of three source waters for the mixed water. Such U-isotopes modeling for mixing calculations indicated that the dominant phase (68%) in the mixture is thermal.en
dc.description.affiliationUniv Estadual Paulista, Inst Geociencias & Ciências Exatas, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Geociencias & Ciências Exatas, BR-13506900 Rio Claro, SP, Brazil
dc.format.extent507-523
dc.identifierhttp://dx.doi.org/10.1007/s00254-005-1301-7
dc.identifier.citationEnvironmental Geology. New York: Springer, v. 48, n. 4-5, p. 507-523, 2005.
dc.identifier.doi10.1007/s00254-005-1301-7
dc.identifier.issn0943-0105
dc.identifier.lattes7430102726026121
dc.identifier.urihttp://hdl.handle.net/11449/31683
dc.identifier.wosWOS:000232636100009
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofEnvironmental Geology
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjecturanium isotopespt
dc.subjectgroundwaterpt
dc.subjectage and mixingpt
dc.subjectPocos de Caldas plateaupt
dc.subjectBrazilpt
dc.titleThe U-isotopes modeling in aquifers from Pocos de Caldas plateau, Brazilen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
unesp.author.lattes7430102726026121
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt

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Artigos - Petrologia e Metalogenia - IGCE