Environmental Engineering Reference
In-Depth Information
slopes and reaches its climax in
rock glaciers
which are distinctive of arid alpine
permafrost regions. Wind deflation of fine debris is also a significant process in arid
alpine zones.
Plate 25.7
A protalus rampart (left) accumulating below
active perennial snow beds above Val d'Herens, Switzerland,
compared with a relic protalus rampart, modified in
temperate Holocene climates, on Snowdon, North Wales.
Photos: Ken Addison.
