@inproceedings{inproceedings59faa3e9, title = {Tectonic interpretation of 40 'AR' / 30 'AR' ages on country rocks from the central sector of the rio negro-juruena province, sw amazon craton}, author = {Bettencourt, Jorge Silva and Onstott, T C and De Jesus, T and Teixeira, Wilson}, year = {1995}, publisher = {Center for Geosciences/Federal University of para}, booktitle = {Symposium on Rapakivi Granites and Related Rocks} }