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- Title
Estudo litogeoquímico dos granitóides do norte do Mato Grosso (Brasil), litogênese do sistema plutônico granítico póscolisional a intraplaca na porção sul do cráton amazônico.
- Authors
Abdallah, Said
- Abstract
The geochemistry of the granites located in the north of Mato Grosso (Brazil) allowed the identification of geochemical characteristics, in relation to the smaller and larger elements, of high K-calcium alkaline series, similar to type A2 granites, possibly of mantle origin contaminated by crustal elements. The geochemical pattern resembles the granites of post-collision or post-orogenic systems, some of them tending to the geochemical characteristics of the environment of systems Intraplate and Anorogenics. The U-Pb (isotopic geochemistry) geochronological ages are located between the Orosirian (Paleoproterozoic) and the Calymmian (Mesoproterozoic), which suggests, as a function of the multielementar distribution and the pattern of rare earth elements (REE), the same origin or source primordial for these granitogeneses.
- Publication
Geochimica Brasiliensis, 2018, Vol 32, Issue 1, p62
- ISSN
0102-9800
- Publication type
Article
- DOI
10.21715/GB2358-2812.2018321062