1.- (super 40) Ar/ (super 39) Ar and (U-Th)/He geochronology applied to supergene minerals as temporal indicators in denudation chronology, Parana, southern Brazil [International Geological Congress]; [location varies]; III; International, 2012 34th international geological congress; abstracts Ver registro 2.- (super 40) Ar/ (super 39) Ar weathering geochronology on manganese oxides from Bahia, NE Brazil [International Geological Congress]; [location varies]; III; International, 2012 34th international geological congress; abstracts Ver registro 3.- Using numerical models to quantify surface and tectonic processes; the evolution of the Brazilian margin [International Geological Congress]; [location varies]; III; International, 2012 34th international geological congress; abstracts Ver registro