ALVES, Hosana Maria Melo. (BrasilCentro de Formação de Professores - CFPUFCGUniversidade Federal de Campina Grande, 1994)
Most of the territory is located in a basin of tectonic origin whose relief is flat, with recent lands forming fluvial plains of the Peixe and Piranhas rivers. In places where crystalline rocks emerge, crests called sierras ...