E. Somfai et al., POWER-LAW DISTRIBUTION OF LANDSLIDES IN AN EXPERIMENT ON THE EROSION OF A GRANULAR PILE, Journal of physics. A, mathematical and general, 27(20), 1994, pp. 120000757-120000763
Experimental aspects of self-organized criticality are investigated in
a micro-model exhibiting mass displacements involving material flow i
n three dimensions. By watering a ridge-shaped pile made of a granular
mixture we observe micro-landslides whose size distribution indicates
a power-law dependence with an exponent tau close to 1. To obtain a m
ore detailed description of the geometrical changes in the profile of
the eroding ridge we also determine the temporal scaling of the height
correlation function and the distribution of the local velocities.