1) Wall 
(from the article `mining`) ...and its strike (the position it takes with respect to the four points of the compass). Rock lying above the ore body is called the hanging wall, ... ...its length from place to place. When rocks slip past each other in faulting, the upper or overlying block along the fault plane is called the ... [2 rel...
The block beneath a dipping fault surface.
The layer of rock immediately under the vein.
[n] - the lower wall of an inclined fault
the underlying side of a fault, ore body or mine working
the underlying side of a fault, ore body or mine working
The rock on the underside of a vein or ore structure.
The wall or rock on the underside of a stope.
the top of the rock stratum underlying a vein or bed of ore. Cf. hanging wall (def. 1). · a mass of rock lying beneath a fault plane.