Exaration


Also found in: Dictionary.
Related to Exaration: exaggeration, exaggerating
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Exaration

 

the glacial destruction of the rocks that make up the bed of the glacier and the removal of the broken material (detached masses, boulders, pebbles, sand, clay, and so on) by a moving glacier. Exaration brings about the formation of glacial troughs, lake basins, sheepback rocks (roches moutonnées), glacial scarrings, and striations. In the course of destruction, the rocks are smoothed, ground, and polished.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.