Geochemistry and geochonology U-Pb and Sm/Nd data of the orthogneiss from Pontalina region (GO), Brazil

dc.contributor.authorBeltran Navarro, Guillermo Rafael [UNESP]
dc.contributor.authorZanardo, Antenor [UNESP]
dc.contributor.authorConceicao, Fabiano Tomazini da [UNESP]
dc.contributor.authorMontibeller, Cibele Carolina [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-10T18:03:52Z
dc.date.available2020-12-10T18:03:52Z
dc.date.issued2013-06-01
dc.description.abstractOrthogneisses of tonalitic to granodioritic composition with calc-alkaline, metaluminous to peraluminous characteristics crop out at the region of Pontalina. The orthogneisses exhibit negative anomalies of Nb, Ta, P and Ti relative to rare earth elements (REE) and litophile elements, besides low contents of Nb, Ta, Y and Yb, similar to the rocks formed in subduction environments. U-Pb geochronological data show a neoproterozoic (681.5 +/- 7.7 Ma) crystallization for the orthogneisses. The Nd isotope data yielded weakly negative to positive epsilon(Nd)(T) (+3.2 up to -0.1), with T-DM model ages of similar to 1.2 Ga. The combined geochemical and isotopic data suggest that the protolith of these orthogneisses are representative of neoproterozoic juvenile magmas, probably developed in an island arc system, generated during a ca.700 and 600 Ma event of crustal accretion in the western edge of the Sao Francisco Craton.en
dc.description.affiliationUniv Estadual Paulista Julio de Mesquita Filho UN, Inst Geociencias & Ciencias Exatas, Programa Pos Grad Geol Reg, Rio Claro, SP, Brazil
dc.description.affiliationUniv Estadual Paulista Julio de Mesquita Filho UN, Dept Petrol & Metalogenia, Rio Claro, SP, Brazil
dc.description.affiliationUniv Estadual Paulista Julio de Mesquita Filho UN, Dept Planejamento Terr & Geoproc, Rio Claro, SP, Brazil
dc.description.affiliationUniv Estadual Paulista Julio de Mesquita Filho UN, Dept Planejamento Terr & Geoproc, Curso Geol, Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julio de Mesquita Filho UN, Inst Geociencias & Ciencias Exatas, Programa Pos Grad Geol Reg, Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julio de Mesquita Filho UN, Dept Petrol & Metalogenia, Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julio de Mesquita Filho UN, Dept Planejamento Terr & Geoproc, Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julio de Mesquita Filho UN, Dept Planejamento Terr & Geoproc, Curso Geol, Rio Claro, SP, Brazil
dc.format.extent317-332
dc.identifierhttp://dx.doi.org/10.5327/Z2317-48892013000200009
dc.identifier.citationBrazilian Journal Of Geology. Sao Paulo: Soc Brasileira Geologia, v. 43, n. 2, p. 317-332, 2013.
dc.identifier.doi10.5327/Z2317-48892013000200009
dc.identifier.issn2317-4889
dc.identifier.urihttp://hdl.handle.net/11449/195802
dc.identifier.wosWOS:000209433300009
dc.language.isopor
dc.publisherSoc Brasileira Geologia
dc.relation.ispartofBrazilian Journal Of Geology
dc.sourceWeb of Science
dc.subjectgeochemistry
dc.subjectgeochronology
dc.subjectorthogneiss
dc.subjectGoias magmatic arc
dc.titleGeochemistry and geochonology U-Pb and Sm/Nd data of the orthogneiss from Pontalina region (GO), Brazilen
dc.typeArtigo
dcterms.rightsHolderSoc Brasileira Geologia
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Geociências e Ciências Exatas, Rio Claropt
unesp.departmentPetrologia e Metalogenia - IGCEpt
unesp.departmentPlanejamento Territorial e Geoprocessamento - IGCEpt

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