Magnetic fabric and emplacement by multiple diking of the Prado and Caraúbas plutons along the Portalegre shear zone (Seridó Belt, NE Brazil) - Trindade, Ricardo Ivan Ferreira da; Ernesto, Márcia; Archanjo, Carlos José; Santos, Ticiano Jose Saraiva dos; Hackspacher, Peter (Congresso Brasileiro de Geologia, 1998)