Abordagem geomorfológica da bacia do rio Peruaçu e implicações geoarqueológicas

The Rio Peruaçu Basin is the object of a geomorphological redifinition starting from a multi-field approach carried out for over ten years. Based on the works of the Minas Gerais archaeologists and speleologists, this study defines four geomorphological compartments from the springs to the juction with the Sao Francisco river,namely: the zone of the upper valley, the zone of the geological transition, the zone of the karstic canyon and the zone of the alluvial plain. The main stages of the geomorphological evolution of the system were released and make it possible to define the space distribution of the mineral resources potentially usable by the prehistoric groups, and also to work out a typology of the raw material deposits. This approach contributes to the definition of the perception of the space by the first human settlements.