The cap carbonate of the Puga Hill (central south America) in the context of the post-varanger glaciation - Boggiani, Paulo César; Ferreira, Valderez; Sial, Alcides Nobrega; Babinski, Marly; Trindade, Ricardo Ivan Ferreira da; Aceñolaza, G.; Toselli, Alejandro J.; Parada, M. A. (South American Symposium on Isotope Geology, 2003)