A record of permian subaqueous vent activity in southeastern Brazil - Yamamoto, Jorge Kazuo; Fairchild, Thomas R.; Boggiani, Paulo César; Montanheiro, Tarcísio José; Araújo, Carlos César de; Kiyohara, Pedro Kunihiko; Matos, Sérgio Luís Fabris de; Soares, Paulo Cesar (Nature, 2005)