Geol. The plane of dislocation in an overfault, along which the dislocated strata have been driven.
1884. Geikie, in Nature, 13 Nov., 30/1. The most extraordinary dislocations … are those to which … we have given the name of Thrust-Planes. They are, strictly, reversed faults, but with so low a hade that the rocks on their up-throw side have been, as it were, pushed horizontally forward.
1884. Peach & Horse, ibid., 33/2. At length this intricate system of faults and folds culminates in a great dislocation which,… to distinguish it from the ordinary reversed faults, may be termed a Thrust-Plane.
1907. Athenæum, 2 Nov., 554/3. The planes of disruption along which the masses travelled are known as thrust-planes.
