Direct dating of gold by radiogenic helium: testing the method on gold from Diamantina, Minas Gerais, Brazil - Cabral, Alexandre Raphael; Eugster, Otto; Brauns, Michael; Lehmann, Bernd; Rösel, Delia; Zack, Thomas; Abreu, Francisco Robério de; Pernicka, Ernst; Barth, Matthias (Geology, 2013)