AR/39AR geochronology of Serra do Mar dike swarm in the Resende - Ilha Grande bay segment, Soutweast of Brazil - Guedes, Eliane; Heilbron, Monica; Valeriano, Claudio de Morisson; McWilliams, Michael; Dumitru, Trevor; Teixeira, Wilson; Onoe, Artur Takashi (South American Symposium on Isotope Geology, 2012)