Geoquímica de gnaisses do arco magmático de goiás na região sul do estado de goiás

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dc.contributor.authorNavarro, Guillermo Rafael Beltran [UNESP]
dc.contributor.authorZanardo, Antenor [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:22:27Z
dc.date.available2014-05-27T11:22:27Z
dc.date.issued2007-04-01
dc.description.abstractGranitic to trondhjemitic gneisses from the Pontalina region in the southern part of Goiás State, Central Brazil, have calcic to calc-alkaline, metaluminous to peraluminous compositions. They have low concentrations of alkaline elements, and are enriched in Ba, Sr, K, Rb in relation to Nb, Y, Zr and REE, and have negative anomalies of Nb and Ti, features which are similar to those of magmas generated in magmatic arc environments. Those rocks were previously interpreted as part of the basement of the Brasília Belt, attributed to the Archean to Paleoproterozoic, but new Sm - Nd isotopic data indicate a neoproterozoic age (TDM = 0,9 a 1,2 Ga), and the preliminary geochemical data reveal compositions similar to the gneisses of the other regions belonging to the Goiás Magmatic Arc.en
dc.description.affiliationDepartamento de Petrologia e Metalogenia Instituto de Geociências e Ciências Exatas UNESP, Av. 24-A 1.515, CEP 13506-900, Rio Claro, SP
dc.description.affiliationUnespDepartamento de Petrologia e Metalogenia Instituto de Geociências e Ciências Exatas UNESP, Av. 24-A 1.515, CEP 13506-900, Rio Claro, SP
dc.format.extent19-28
dc.identifierhttp://dx.doi.org/10.5327/Z1519-874X2007000100002
dc.identifier.citationGeologia USP - Serie Cientifica, v. 7, n. 1, p. 19-28, 2007.
dc.identifier.doi10.5327/Z1519-874X2007000100002
dc.identifier.file2-s2.0-34249725588.pdf
dc.identifier.issn1519-874X
dc.identifier.lattes6893272900174059
dc.identifier.scopus2-s2.0-34249725588
dc.identifier.urihttp://hdl.handle.net/11449/69609
dc.language.isopor
dc.relation.ispartofGeologia USP: Serie Cientifica
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBrasilia belt
dc.subjectGeochemistry
dc.subjectGneisses
dc.subjectGoiás magmatic arc
dc.subjectcalc alkaline rock
dc.subjectgeochemistry
dc.subjectgneiss
dc.subjectisotopic composition
dc.subjectmagmatism
dc.subjectBrasilia Belt
dc.subjectBrazil
dc.subjectGoias
dc.subjectPontalina
dc.subjectSouth America
dc.titleGeoquímica de gnaisses do arco magmático de goiás na região sul do estado de goiáspt
dc.title.alternativeThe geochemistry of the gneisses of the Goiás Magmatic Arc in the southern region of the Goiás Stateen
dc.typeArtigo
dcterms.licensehttp://www.revistas.usp.br/guspsc/about/editorialPolicies#openAccessPolicy
unesp.author.lattes6893272900174059
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt

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Artigos - Petrologia e Metalogenia - IGCE