MORPHOSTRUCTURAL EVOLUTION AND GEOMORPHOLOGICAL MAPPING IN CRYSTALLINE MASSIF IN NORTHEASTERN BRAZIL

Abstract

This work addresses the morphostructural evolution of the Crystalline Massif in northeastern Brazil. Highlights as a test area the northwest of the State of Ceará, evaluating the Massif of Meruoca, as a result of the intrusion of post-tectonic granitoid from the orogenic collapse of Brazilians in the Middle Domain area Coreaú/Província Borborema. In addition, the reactivations of the Café-Ipueiras Fault and the Transbrazilian Lineament promoted morphotectonic events during the Cretaceous and Cenozoic, conditioning the elevation or exhumation of the relief. The operational procedures were divided into four stages: 1) Literature review; 2) Interpretation of SRTM images; 3) Elaboration of thematic mapping; 4) Fieldwork. The geomorphological mapping of the Meruoca Massif provided the identification of morphosculptural units classified in the 3rd taxon according to the Ross methodology (1991), denouncing the work of differential erosion on the morphing structure in the preparation of relief compartments that are individualised in the larger set of the geomorphological landscape.