Trace element composition of mafic cumulus minerals as clues to the parental magma composition and mantle source mineralogy of the Juquiá alcaline-carbonatite complex, Se Brazil - Azzone, Rogério Guitarrari; Enrich Rojas, Gaston Eduardo; Gomes, Celso B.; Ruberti, Excelso (Simpósio de Vulcanismo e Ambientes Associados, 2011)