Quote:
Originally Posted by renormalised
You're correct, Les. Glacial valleys have a characteristic "U" shape and not a "V" shape.
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The 'V' for river 'U' for glacier is not completely correct. As far as I know glaciers do erode V valleys into U valleys, and straighten them (glaciers don't meander). Half Dome in Yellowstone would be the text book example. However rivers can produce both V and U profiles. The controls are many, varied and debated in the literature.