Geochronological constraints on the age of a Permo–Triassic impact event: U–Pb and 'ANTPOT. 40 Ar'/'ANTPOT. 39 Ar' results for the 40 km Araguainha structure of central Brazil - Tohver, Eric; Lana, Cristiano; Cawood, Peter A.; Fletcher, I. R; Jourdan, Fred; Sherlock, S; Rasmussen, B; Trindade, Ricardo Ivan Ferreira da; Yokoyama, Elder; Souza Filho, Carlos Roberto de; Marangoni, Yára Regina (Geochimica et Cosmochimica Acta, 2012)