Alkaline complexes from southeastern Bolívia - Comin-Chiaramonti, P.; Gomes, Celso B.; Censi, Paolo; Velázquez Fernandez, Victor; Antonini, Paolo; Comin-Chiaramonti, F.; Punturo, Rosalda (Mesozoic to Cenozoic alkaline magmatism in the brazilian platform, 2005)