The alkaline and alkaline-carbonatite magmatism from Southern Brazil

Excelso Ruberti1, Celso de Barros Gomes1 and Piero Comin-Chiaramonti2, (1)Universidade de São Paulo, São Paulo, Brazil, (2)University of Trieste, Dipartimento di Scienze della Terra, 34100 Trieste, Italy