Rates of soil movements at Chambeyron (Lower Alps)
DOI:
https://doi.org/10.26485/BP/1964/14/14Keywords:
soil movements, periglacial processes, Chambeyron, Lower Alps, block streams, patterned ground, rock glacierAbstract
Article in French.
ORIGINAL TITLE: Vitesses des mouvements du sol au Chambeyron (Basses Alpes)
The study conducted in 1963 in the Chambeyron area (Lower Alps) continues earlier observations initiated by André Cailleux and Jean Michaud in 1947. The author investigates soil movements within polygonal grounds, block streams, talus slopes and a rock glacier. The results show that the rates of displacement vary according to slope angle, particle size and the presence of fine matrix material. Smaller clasts move faster than larger ones, with average rates ranging from a few millimetres to about 1 cm per year. The findings confirm that periglacial processes in the Alps remain active today, though at low and spatially variable intensities depending on local geomorphic settings.
