Definitions for "Overburden"
The waste which overlies good stone in a quarry.
Overlying Layers of noncommercial sediments that must be removed to reach a mineral or coal deposit.
Overburden is the material that is removed from the earth's surface to uncover the coal. Overburden includes layers of earth and rock.
Keywords:  overthrust
an excessive burden
burden with too much work or responsibility
Keywords:  underground, storage, see
Keywords:  load, weight, great, excessive, care
To load with too great weight or too much care, etc.
load with excessive weight