An arete is a very thin,almost knife like ridge of rock which is typically formed when two glaciers erode parallel U shaped valleys. The Arete is a thin ridge of rock that is left separating the two valleys. Aretes can also form when two glacial cirques erode headwards towards one another, although frequently this results in a saddle-shaped pass called a col. The edge is sharpened by FREEZE THAW WEATHERING. The slope on eaither sid eof the arete is steepended through mass wasting events and the erosion of exposed unstable rock.
Now you know...
No comments:
Post a Comment