Evolução geomorfológica e morfoestratigráfica da estrutura superficial na paisagem da bacia do rio Coruripe

Abstract

The analysis of landforms allows us to understand the processes related to the genesis, evolution, and current structure of the landscape. The studies with emphasis on processes in the field of geomorphological science, adopted in this research, are based on the understanding of the processes that act in the elaboration of the landscape. Thus, the present research sought to understand the evolutionary processes of the landscape structure in the middle and lower reaches of the Coruripe River watershed through its surface coverings. The research started from the physical-environmental analyses of the superficial coverings that structure the tablelands. The bibliographical review, geomorphological mapping, outcrop sedimentary description and laboratory analyses allowed the characterization of the deposits found in the study area. The sedimentological analyses show two depositional facies: fluvial and colluvial origin. The first is associated with gravel deposits and floodplains, while the second is associated with debris flows originating from hillslope transport. It is suggested that further studies from the perspective of structural geomorphology, geochemical and geochronological studies should be carried out in order to elaborate the model of the landscape evolution of the area.