Evolução geomorfológica recente da falésia de Itapari, São José de Ribamar-MA

Abstract

The cliffs refer to high slope surfaces, where the elevated land meets the sea, corresponding to a geomorphological feature of the first order of significance, because they occur along about 80% of the world's coastlines. In the municipality of São José de Ribamar, Maranhão, a coastal zone presents a unique set of cliffs, among them Itapari. The geological constitution of this form of relief of materials of the Formação Barreiras, being highly susceptible to erosion by marine processes, provoking landslides, mainly during rainy periods. Considering that it is an area of increasing human occupation, the present work aims to know and interpret how the dynamics of the modeling processes of the Itapari cliff, responsible for its geomorphological evolution, are processed. The development of the research involved the revision of the literature; fieldwork for the identification, characterization and analysis of the cliff and the anthropic use of the area, through photographic record, field record and determination of parameters of waves, tides and currents. From the results found, it was concluded that the natural components of the environment are the main constraints of the operational processes in the current evolution of the cliff, which compose it.