Itatiaia, Passa Quatro and São Sebastião island, the major alkaline syenitic complexes from the Serra do Mar region - Enrich Rojas, Gaston Eduardo; Azzone, Rogério Guitarrari; Ruberti, Excelso; Gomes, Celso B.; Comin-Chiaramonti, P. (Mesozoic to Cenozoic alkaline magmatism in the brazilian platform, 2005)