Evolução geomorfológica do relevo cárstico do município de Martins-Rio Grande do Norte

Abstract

The brazilian northeast presents a great geomorphological variety with unique landscapes related to genesis, shapes and features. In this regard, the research was developed in the eastern slope of the massive mountain of Martins, in the state of Rio Grande do Norte, that belongs to the lithological units: Suítes Intrusivas Poços da Cruz; Unidades do Grupo Seridó: Formação Jucurutu and Suíte Intrusiva Umarizal and Formação Serra do Martins. The main objective is to delineate an evolutionary chart of the Martins’ karst landscape with emphasis on the relief of the Casa de Pedra cave. The research technical-operational procedures are bibliographical and cartographic inventory of the area; fieldwork with a cave lift and aero photogrammetric survey of the karst inselbar through an unmanned aerial vehicle (UAV); and cabinet activities. Firstly, that is a discussion about the systemic patterns of karst relief with the main models of genesis and evolution and the geomorphological classifications from the processes that generates the morphometric and structural characteristics. As a result, we have surveyed exokerstic form, endokerstic form and Speleothems, maps and diagrams that demonstrates the genesis, morphic structural characteristics, structural control, current structure and the process of geomorphological evolution of the Martins karst landscape and the Casa de Pedra cave.