A combined U-PB provenance and isotope chemostratigraphy (C, O, SR) study on upper Sete Lagoas Formation, Bambuí Group, Brazil: an early cambrian unit? - Paula-Santos, Gustavo; Babinski, Marly; Kuchenbecker, Matheus; Caetano-Filho, Sergio (South American Symposium on Isotope Geology, 2012)