198
Climatic Geomorphology
Figure 8.29. Protalus ramparts in Turb6n calcareous Massif, Central Pyrenees, Spain. (Photo: J.L. Pefia).
convex-concave slopes with a continuous cover of gelifluction material (French, 1996)
(Figure 8.31).
The cliff-talus slopes evolve by the parallel retreat of the free face and the
accumulation of detrital particles in the lower segment of the slope leading to the
increase in its length and the decrease of its inclination through time (Carson and
A
B
'~
Figure 8.30. Sketch showing a sequence of protalus ramparts generated by the accumulation of frostshattered debris at the foot of a retreating snowfield (Sharpe, 1938, in Fairbridge (Ed.), 1968, p. 377,
Figure 9).
Climatic Geomorphology
Figure 8.29. Protalus ramparts in Turb6n calcareous Massif, Central Pyrenees, Spain. (Photo: J.L. Pefia).
convex-concave slopes with a continuous cover of gelifluction material (French, 1996)
(Figure 8.31).
The cliff-talus slopes evolve by the parallel retreat of the free face and the
accumulation of detrital particles in the lower segment of the slope leading to the
increase in its length and the decrease of its inclination through time (Carson and
A
B
'~
Figure 8.30. Sketch showing a sequence of protalus ramparts generated by the accumulation of frostshattered debris at the foot of a retreating snowfield (Sharpe, 1938, in Fairbridge (Ed.), 1968, p. 377,
Figure 9).