@inproceedings{inproceedings2185b93d, title = {The Rio Alegre volcanosedimentary sequence (SW Amazonian Craton, Brazil): chemical and isotope (U/Pb and Sm/Nd) constraints and tectonic implications}, author = {Matos, João Batista de and Schorscher, Johann Hans Daniel and Geraldes, Mauro Cesar and Souza, Maria Zélia Aguiar de}, year = {2001}, publisher = {Sociedad Geológica de Chile}, booktitle = {South American Symposium on Isotope Geology} }