Is Arete erosion or deposition?
Is Arete erosion or deposition? It is a small ridge of rock that is formed between the two valleys created the glacial erosion and is formed when two glacial cirques are eroded towards one another. The edges of arête are sharpened by freeze-thaw weathering while the slopes of the sides of arête are made steep through mass erosion of the exposed rock. How are Proglacial lakes formed? Lakes form when meltwater ponds, and this can happen on the ice surface (supraglacial lakes), in front of the ice (proglacial lakes), or even underneath the ice (subglacial lakes). Glacier lakes can affect...