U-Pb LA-ICP-MS detrital zircon ages of the São João del Rei and Garandaí basins: new evidence of intermittent proterozoic rifting in the São Francisco paleocontinent - Ribeiro, A; Teixeira, Wilson; Dussin, Ivo Antonio; Avila, Ciro Alexandre; Nascimento, D (Gondwana research, 2013)