Marinho Alves da Silva Filho (late) Marinho Alves da Silva Filho in the extreme right (2002). Doctoral thesis (2006): Litogeoquímica e evolução tectônica do Domínio Macururé, sistema Sergipano, Nordeste do Brasil (supervisor: Prof. A.N. Sial). Marinho Alves da Silva Filho graduated in Geology from the Federal University of Pernambuco in 1967. He entered the Geological Survey of Brazil (CPRM) in 1969, with which he stayed until December 2006 when he passed away, ten days after finishing his doctoral thesis. He was a field geologist with major interest on structural geology and tectonics.