Mining terminology

The ratio between the overburden and the minerals that need to be removed.

The sinking of the Earth's surface due to collapses in lower layers.

A long, narrow layer of coal or mineral within rocks.

A deep vertical opening used to access underground layers in the mines.

A small opening inside a mine for extracting minerals.

A low-lying, flat area covered with a layer of salts.

A pond for storing tailings after mining operations.

A dam used to store tailings after mineral extraction.

The materials left over after extracting minerals from the ore.

A water layer not confined by rocks.

The extraction of minerals from beneath the Earth's surface using tunnels inside the earth.

A long, narrow deposit of mineral within rocks.