Os granitóides brasilianos da faixa de dobramentos paraguai, MS e MT

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorGodoy, Antonio Misson
dc.creatorRuiz, Amarildo Salina
dc.creatorManzano, Jefferson Cassu
dc.creatorDe Araújo-Ruiz, Larissa Marques Barbosa
dc.date2014-05-27T11:22:27Z
dc.date2016-10-25T18:23:44Z
dc.date2014-05-27T11:22:27Z
dc.date2016-10-25T18:23:44Z
dc.date2007-04-01
dc.date.accessioned2017-04-06T01:24:25Z
dc.date.available2017-04-06T01:24:25Z
dc.identifierGeologia USP - Serie Cientifica, v. 7, n. 1, p. 29-44, 2007.
dc.identifier1519-874X
dc.identifierhttp://hdl.handle.net/11449/69610
dc.identifierhttp://acervodigital.unesp.br/handle/11449/69610
dc.identifier10.5327/Z1519-874X2007000100003
dc.identifier2-s2.0-34249659560.pdf
dc.identifier2-s2.0-34249659560
dc.identifierhttp://dx.doi.org/10.5327/Z1519-874X2007000100003
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/890829
dc.descriptionThe Brazilian Granitic Province from southeastern Mato Grosso do Sul and Mato Grosso region, central western Brazil, can be divided into two major groups and/or magmatic events related to the evolution of the Paraguay Fold Belt. The southern portion crops out in Mato Grosso do Sul State and is constituted by the Taboco, Rio Negro, Coxim and Sonora massifs forming NE-SW oriented, elongated small intrusions. The north portion crops out in Mato Grosso State and is constituted by the São Vicente, Araguaiana and Lajinha batholiths. Lithogeochemical aspects of the northern granites point to Type-I granites ranging from K calc-alkaline to high-K, peraluminous to metaluminous in composition, generated in an environment of continental collision and/or post- collision decompression. The southern granites are Type-I, from K calc-alkaline to high-K, peraluminous to subordinate metalummous, in a syn-collision continental arc environment with the exception of some pre-collisional facies from the Rio Negro Massif. The southern granites have less SiO 2 and K 2O, and are less differentiated and evolved than granites from the northern region. The four southern granites can be grouped into two subordinate sets with the degree of differentiation increasing from South (Taboco and Rio Negro) to North (Coxim and Sonora). The granitic rocks are characterized by a magmatism generated by melting of material from the lower crust which suggests that in this province the formation from non-cogenetic magmas with diversified compositions and distinct degrees of fractioning reaching more steady consolidated environments at the end of the collisional event in the southeastern Amazonian Craton.
dc.languagepor
dc.relationGeologia USP: Serie Cientifica
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectAmazonian Craton
dc.subjectCuiaba group
dc.subjectGranites
dc.subjectLithogeochemistry
dc.subjectbatholith
dc.subjectcontinental collision
dc.subjectcraton
dc.subjectfold belt
dc.subjectgranite
dc.subjectigneous geochemistry
dc.subjectigneous province
dc.subjectmagmatic differentiation
dc.subjectmagmatism
dc.subjectmelting
dc.subjectAmazonia
dc.subjectBrazil
dc.subjectMato Grosso
dc.subjectMato Grosso do Sul
dc.subjectParaguay Belt
dc.subjectSouth America
dc.titleOs granitóides brasilianos da faixa de dobramentos paraguai, MS e MT
dc.typeOtro


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