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Objetiva-se comparar e discutir padrões de ETR em rochas e minerais acessórios (monazita, apatita e zircão) de granitos crustais, de idade neoproterozóica, nas proximidades dos povoados de São Paulinho (SPL), Santa Luzia do Norte (SLN), São João do Sul (SJS) e Santo Antônio do Jacinto (SAJ), denominados de Suíte São Paulinho (SSP) no extremo sul do Estado da Bahia. Apenas nas rochas muito diferenciadas dessa suíte, pobres em minerais acessórios, ocorrem mudanças significativas nos formatos dos padrões de ETR, sugerindo que, nos estágios iniciais da evolução magmática, as variações de formatos, devido ao fracionamento de minerais essenciais, são, em boa parte, mascaradas pelos minerais acessórios. The concentrations of light rare land elements (LRLE) in plutonic felsic rock are, in majority, completely dominated by supplementary phases, such as monazite, producing a potent petrogenetic indicative in the chemical study of RLE in granitic rocks. Seeking to deepen this notion we are presenting, comparing and discussing patterns of ETR in rocks, essential minerals and trace elements of massive crustal granites from the Neoproterozoic age, in the proximities of São Paulinho's town (SPL), Santa Luzia do Norte (SLN) São João do Sul (SJS) and Santo Antônio do Jacinto (SAJ) in the Jequitinhonha Complex in the State of Bahia, northeast Brazil. Just in very differentiated rocks (poor in trace minerals), there happens significant changes in the formats of the patterns of ETR, suggesting that in the initial stages of magmatic evolution, the variations of those formats, due to the division of essential minerals, are in good part masked by the trace minerals

Efeitos dos minerais acessórios na geoquímica de elementos terras-raras em granitóides do Complexo Jequitinhonha no Extremo Sul da Bahia