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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
the scars, scratches, and grooves on the surface of rock, formed by morainic material carried by a moving glacier. The direction of the scars coincides with the direction of the glacier’s movement.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.