rock-scoring

from The Century Dictionary.

• noun In geology, the erosive action of glaciers on rock, or the results of such action. Various kinds of scoring are noted, as: striæ or striations, fine linear scratches, nearly parallel; grooves or furrows, broader depressions, usually straight, sometimes curved, a few inches (rarely a foot or more) deep; gouges, irregular excavations; and crescentic gouges or furrows, broken excavations, transverse to the striæ, with concave side ‘up-stream.’