Tipologia de zircao e razao inicial Sr87/86Sr em series granitoides

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dc.contributor.authorWernick, E.
dc.contributor.authorFerreira, C. J.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:17:24Z
dc.date.available2014-05-27T11:17:24Z
dc.date.issued1990-12-01
dc.description.abstractSr87/86Sr initial ratio data based on the isochrons from 22 granitoid complexes of Brasiliano age (Late Precambrian) from S and E Brazil are presented. The complexes have been classified into different rock series with the aid of zircon typology. A correlation between the initial ratio and the zircon typology can be determined. Of particular interest is the systematic decrease of the Sr87/86Sr initial ratio in the range from the low, through medium to the high temperature calc-alkaline series which could indicate a gradual increasing of mantle material in the genesis of calc-alkaline granitoid of progressive greater depths. -from English summaryen
dc.format.extent107-125
dc.identifier.citationGeociencias, v. 9, p. 107-125.
dc.identifier.issn0101-9082
dc.identifier.scopus2-s2.0-0025683413
dc.identifier.urihttp://hdl.handle.net/11449/64095
dc.language.isopor
dc.relation.ispartofGeociências
dc.relation.ispartofsjr0,230
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectBrasiliano
dc.subjectcalc-alkaline rock
dc.subjectgranite
dc.subjectisotopic analysis
dc.subjectmantle material
dc.subjectstrontium
dc.subjectzircon
dc.subjectBrazil
dc.titleTipologia de zircao e razao inicial Sr87/86Sr em series granitoidespt
dc.title.alternativeZircon typology and Sr87/Sr86 ratio in granitoid seriesen
dc.typeArtigo
dcterms.licensehttp://www.revistageociencias.com.br/

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