Geology Reference
In-Depth Information
Table 6.2 .
Permafrost creep data from a number of localities in permafrost of varying temperatures.
Locality
Mean Annual Ground
Slope Angle
Movement Rate
Source
Temperature (°C)
(cm/year)
Cold permafrost:
Rea Point, Eastern Melville Island, NWT
−
16.0
5°
0.03-0.05
Bennett and French (1988, 1990)
Tuktoyaktuk, Mackenzie Delta
−
6.0
Variable
0.03-0.04
Dallimore et al. (1996)
Warm permafrost:
Great Bear River, Mackenzie Valley, NWT
−
2.0
15-31°
0.0-0.3
Savigny and Morgenstern (1986a,
1986b, 1986c)
Fenghuo Shan, Qinghai-Xizang (Tibet) Plateau
−
3.0
9-25°
0.44 (1.6 m depth)
Wang and French (1995b)
0.16 (2.8 m depth)
Alpine permafrost:
Switzerland (Alps)
−
1.0 to
−
3.0
(Rock glaciers)
5.0-6.0
Wagner (1992); Haeberli (1985)
