U-Pb (SHRIMP), Sm-Nd and Re-Os systematics of the Cana Brava, Niquelândia and Barro Alto layered instrusions in central Brazil, and constains on the tectonics evolution - Correia, Ciro Teixeira; Tassinari, Colombo Celso Gaeta; Lambert, David D; Kinny, Peter; Girardi, Vicente Antonio Vitorio (South American Symposium on Isotope Geology, 1997)