@misc{misccb8bfa03,
title   = {U-Pb SHRIMP ages for late Proterozoic acid volcanics of southern Brazil; tectonic implications},
author = {Cordani, Umberto G. and Basei, Miguel Angelo Stipp and Siga Júnior, Oswaldo and Citroni, Sergio and Nutman, Allen},
year = {1999},
booktitle   = {GSA Annual Meeting and Exposition}
}