@inproceedings{inproceedings6b6f5205,
title   = {U-Pb SHRIMP age determinations for the Iporanga formation, SE Brazil:: implications for the tectonic evolution of the Ribeira belt},
author = {Campanha, Ginaldo Ademar da Cruz and Basei, Miguel Angelo Stipp and Tassinari, Colombo Celso Gaeta and Nutman, Allen and Faleiros, Frederico Meira},
year = {2005},
publisher = {Academia Nacional de Ciencias},
booktitle   = {International Gondwana Symposium}
}