The lower contact of an inclined vein, or the wall rock which lies on the lower side of a dipping vein Hangingwall The upper contact of an inclined vein
Opposite wall from the hanging wall; the wall on the lower side of an inclined orebody
the mass of rock beneath a geological structure (orebody, fault, etc ) gangue: valueless rock or mineral material in ore
Of the two sides of a non-vertical fault, the side below the fault plane It is called the footwall because where inactive faults have been "filled in" with mineral deposits and then mined, this is the side on which miners walk (See hanging wall )