Rubble Drift

rubble drift

[′rəb·əl ‚drift]
(geology)
A rubbly deposit (or congeliturbate) formed by solifluction under periglacial conditions.
A coarse mass of angular debris and large blocks set in an earthy matrix of glacial origin.

Rubble Drift

 

an underground mining process used to extract rocks from the roof (mainly) or floor of a mineral bed in a worked-out area of a drift. Rock is used to control the roofs by means of the spreading out of rubble belts. The rubble drift is used for temporary support and is not held up as the drift moves.

Mentioned in ?