Landslide Incidence Zonification along the Rio Mendoza Valley. Mendoza, Argentina

MOREIRAS, S.M.

EARTH SURFACE PROCESSES AND LANDFORMS

Wiley

Año: 2004 vol. 29 p. 255 - 266

0197-9337

This paper presents a Landslide Incidence Zonation map showing the percentage of underlying material involved in mass-movement processes in the Rio Mendoza Valley, Argentina. The Landslide Incidence Zonation map was derived from an inventory map of landslides and reveals that many areas of the Rio Mendoza Valley are implicated in this kind of process. A correlation has been found between the occurrence of landslides, earthquakes, and rainfall. The relation between lithology and landslides is clear: areas covered by friable sedimentary and volcanic rocks of the Choiyoi Group are prone to debris flows and complex landslides. The slope map has been ranked and a general relation between slope and type of event is shown. Falls commonly develop in high-angle slopes.