the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [noun] > subsidence (5)
Mining. A sudden shift or slippage of the strata in a mine, often caused by the collapse of a supporting pillar; a mining incident or accident…
Mining. = bump, n.2 7. Obsolete. rare.
The action or process of overdeepen, v.
transferred. in Geology (see quot. 1961).
the formation of load casts.