@article{article16dd954d, title = {Constraining the age of the Iporanga Formation with SHRIMP U-Pb zircon: implications for possible Ediacaran glaciation in the Ribeira Belt, SE Brazil}, author = {Campanha, Ginaldo Ademar da Cruz and Basei, Miguel Angelo Stipp and Tassinari, Colombo Celso Gaeta and Nutman, Allen and Faleiros, Frederico Meira}, year = {2008}, doi = {10.1016/j.gr.2007.05.010}, journal = {Gondwana research} }