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Article Dans Une Revue Romanian Journal of Mineral Deposits Année : 2014

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

Fernando Machado de Mello
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Essaid Bilal

Résumé

Applied structural geology and geomorphological characterization studies were carried out, aiming an environmental analysis, with the assistance of field surveys, fusion images from thematic maps. The choice of this area in the Rio de Janeiro State - Brazil, was motivated by the recent rising of records of the dangerous landslides in that region, triggered by heavy summer rainfalls. Morphometric characteristics of features, such as shape, slope and aspect 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 areas were highlighted, with the purpose of subsidize environmental studies. The SE area of Rio de Janeiro brings together factors that made possible the high susceptibility of landslides; these factors can be natural or anthropogenic. However, this paper intends to focus on the disposition of the predisposing agents that came from the heterogeneities linked with physical environment characteristics, such as mechanical discontinuities (in soil/rock structures), weathering and geomorphology parameters (shape, slope, aspect).
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Dates et versions

hal-01101573 , version 1 (09-01-2015)

Identifiants

  • HAL Id : hal-01101573 , version 1

Citer

Fernando Machado de Mello, Rômulo Machado, Essaid Bilal. Predisposing factors for shallow landslides susceptibility in southeastern Rio de Janeiro, Brazil. Romanian Journal of Mineral Deposits, 2014, 87 (2), pp.55-60. ⟨hal-01101573⟩
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