The early creataceoius valle Chico complex (Mariscala, SE Urugauy) - Ruberti, Excelso; Gomes, Celso B.; Comin-Chiaramonti, P.; Tassinari, Colombo Celso Gaeta; Antonini, Paolo (Mesozoic to Cenozoic alkaline magmatism in the brazilian platform, 2005)