@inproceedings{inproceedings66ab8eb9, title = {40Ar/39Ar Step heating laser system dating of zinnwaldite and muscovite from tin deposits of the Rondônia tin province, Brazil: evidence for multiple mineralization episodes}, author = {Bettencourt, Jorge Silva and Sparrenberger, Irena and Leite Junior, Washington Barbosa and Payolla, Bruno Leonelo and Onoe, Artur Takashi and Tosdal, Richard M}, year = {2005}, booktitle = {Simpósio Brasileiro de Metalogenia} }