U-Pb (SHRIMP) and Sm-Nd results from the Ponta do Morro Alkaline Complex - MT: tectonics implications - Sousa, Maria Zelia Aguiar de; Ruberti, Excelso; Ruiz, Amarildo Salina; Batata, Maria Elisa Fróes; Lima, Gabrielle Aparecida de; Matos, João Batista de (South American Symposium on Isotope Geology, 2014)