arête

Concept of glacier. Formation and movement of glacier. Continental, valley, and piedmont glaciers. Glacier erosion: cirque, horn, U-shaped valley, arête, hanging valley and Roche moutonnee.

冰的一般概念、形成和冰的运动。大陆冰、山岳冰、山麓冰。冰：冰斗、角峰、和U形谷、冰脊和悬谷以及羊背石。冰搬运和沉积。冰期。