An asymmetric bedrock knob shaped by an overriding glacier, smoothed and gently sloped on the up-ice side where the ice abraded the rock, and steep, rough and plucked on the down-ice side where the ice tore blocks of rock away as it passed. The contrasting texture of its two faces lets geologists read the direction a vanished glacier once flowed.
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Source Roche Moutonnee Formation (Wikipedia)
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Roche Moutonnee Formation (Wikipedia)
Wikimedia FoundationShaped By: Glacial Erosion, Lead paragraphQuote, Shaped By: Glacial Erosion, Lead paragraph
In glaciology, a roche moutonnée (or sheepback) is a rock formation created by the passing of a glacier.
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