The Itaiacoca group: U-Pb (zircon) records of a neoproterozoic basin - Siga Júnior, Oswaldo; Basei, Miguel Angelo Stipp; Weber, Werner; Sato, Kei; Reis Neto, José Manoel dos; Prazeres Filho, Hélcio José dos; Nutman, Allen (South American Symposium on Isotope Geology, 2001)