Abstract
Downslope stone movements were measured on stone-banked lobes in a nivation hollow on the Daisetsu Mountains. Surface stones were painted on three lobes with gradients of 27, 22, 12 degrees in September, 1989. Displacements of the painted stones were measured in October 1991 and 1997.
The deformation features of painted lines showed lobe and tongue like patterns. The average rates of the movements were higher in the central part of the lobes, ranging from 4.5 to 9.2cm/year, while those in the marginal part ranged from 0.5 to 4.5cm/year. Stones moved uniformly with little disturbance of configuration in the marginal part. But stones were scattered in the central part. Smaller stones tended to be moved farther.