Geoquímica de gnaisses do arco magmático de goiás na região sul do estado de goiás
dc.contributor.author | Navarro, Guillermo Rafael Beltran [UNESP] | |
dc.contributor.author | Zanardo, Antenor [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-27T11:22:27Z | |
dc.date.available | 2014-05-27T11:22:27Z | |
dc.date.issued | 2007-04-01 | |
dc.description.abstract | Granitic 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.affiliation | Departamento de Petrologia e Metalogenia Instituto de Geociências e Ciências Exatas UNESP, Av. 24-A 1.515, CEP 13506-900, Rio Claro, SP | |
dc.description.affiliationUnesp | Departamento de Petrologia e Metalogenia Instituto de Geociências e Ciências Exatas UNESP, Av. 24-A 1.515, CEP 13506-900, Rio Claro, SP | |
dc.format.extent | 19-28 | |
dc.identifier | http://dx.doi.org/10.5327/Z1519-874X2007000100002 | |
dc.identifier.citation | Geologia USP - Serie Cientifica, v. 7, n. 1, p. 19-28, 2007. | |
dc.identifier.doi | 10.5327/Z1519-874X2007000100002 | |
dc.identifier.file | 2-s2.0-34249725588.pdf | |
dc.identifier.issn | 1519-874X | |
dc.identifier.lattes | 6893272900174059 | |
dc.identifier.scopus | 2-s2.0-34249725588 | |
dc.identifier.uri | http://hdl.handle.net/11449/69609 | |
dc.language.iso | por | |
dc.relation.ispartof | Geologia USP: Serie Cientifica | |
dc.rights.accessRights | Acesso aberto | |
dc.source | Scopus | |
dc.subject | Brasilia belt | |
dc.subject | Geochemistry | |
dc.subject | Gneisses | |
dc.subject | Goiás magmatic arc | |
dc.subject | calc alkaline rock | |
dc.subject | geochemistry | |
dc.subject | gneiss | |
dc.subject | isotopic composition | |
dc.subject | magmatism | |
dc.subject | Brasilia Belt | |
dc.subject | Brazil | |
dc.subject | Goias | |
dc.subject | Pontalina | |
dc.subject | South America | |
dc.title | Geoquímica de gnaisses do arco magmático de goiás na região sul do estado de goiás | pt |
dc.title.alternative | The geochemistry of the gneisses of the Goiás Magmatic Arc in the southern region of the Goiás State | en |
dc.type | Artigo | |
dcterms.license | http://www.revistas.usp.br/guspsc/about/editorialPolicies#openAccessPolicy | |
unesp.author.lattes | 6893272900174059 | |
unesp.campus | Universidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claro | pt |
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