Predisposing factors for shallow landslides susceptibility in southeastern Rio de Janeiro, Brazil

International audienceApplied structural geology and geomorphological characterization studies were carried out, aiming anenvironmental analysis, with the assistance of field surveys, fusion images from thematic maps. The choice of thisarea in the Rio de Janeiro State - Brazil, was motivated by the recent rising of records of the dangerous landslides inthat region, triggered by heavy summer rainfalls. Morphometric characteristics of features, such as shape, slope andaspect were analyzed. After the cartographic work of these features with the aid of Geographic Information System(GIS) technics, using superimposed layers of information and map algebra, charts were build, where the critic areaswere highlighted, with the purpose of subsidize environmental studies. The SE area of Rio de Janeiro bringstogether factors that made possible the high susceptibility of landslides; these factors can be natural oranthropogenic. However, this paper intends to focus on the disposition of the predisposing agents that came from theheterogeneities linked with physical environment characteristics, such as mechanical discontinuities (in soil/rockstructures), weathering and geomorphology parameters (shape, slope, aspect)