Block mountains

The term “block mountain” was introduced by W. M. Davis; other terms are “fault-block mountain” as given by D. W. Johnson (1903) or simply “fault blocks” of Strahler (1946), for the “initial land forms,” i.e., mountains, where geotectonically positive, produced by crustal fracturing. The simple symmetrically bounded positive fault block is known as horst (q.v.), and thus we have “horst mountain” (Geikie, 1914), but the term block mountain may be applied also to tilted fault blocks and complex faulted uplands.