冰坎
- 网络Cirque threshold
冰坎-
冰冻泥流斜坡、千奇百怪的砾石和无植被覆盖的冰冻泥流、各种形式的冰阶和冰坎以及石环和石多边形等，组成了目前冰缘环境的地貌特征。
We found that there are several remains , like the solifluction on slopes , variously shaped boulders and gelifluction with vegetation covered as well as the different kinds of ice step-cliffs , stone-circles and stone-polygons , they form the present periglacial environment and geomorphological characters .