Evidence for neoproterozoic continental arc magmatism in the Santa Quitéria Batholith of Ceará State, NW Borborema Province, NE Brazil: implications for the assembly of West Gondwana - Fetter, Allen Hutcheson; Santos, Ticiano Jose Saraiva dos; Van Schmus, William Randall; Hackspacher, Peter; Brito Neves, Benjamim Bley de; Arthaud, Michel Henri; Nogueira Neto, José de Araújo; Wernick, Eberhard (Gondwana research, 2003)