overfaultn.
/ˈəʊvəfɔːlt/, /ˈəʊvəfɒlt/, U.S. /ˈoʊvərˌfɔlt/, /ˈoʊvərˌfɑlt/ Geology. Now disused.
= reverse fault n. at reverse adj. and adv. Compounds 2.
ΘΚΠ
the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [noun] > fault > other types of fault
heave1802
reversed fault1852
reverse fault1865
step-fault1879
ring fracture1881
overfault1883
overlap fault1883
overthrust1883
trough fault1883
thrust1888
thrust-fault1889
offset1897
cross-fault1900
tear-fault1900
distributive fault1904
cross-break1909
slide1910
strike-slip fault1913
rift1921
splay fault1942
wrench fault1951
megashear1954
transform fault1965
transform1971
1883 C. Lapworth in Geol. Mag. 10 342 The various stages of rock deformation under lateral pressure (folds, overfolds, overfaults, and overthrusts).
1900 Proc. Geologists' Assoc. 1899–1900 16 461 These fissures..would have an outcrop similar to those of thrust-planes or over-faults which approached the horizontal; but they would differ from these, inasmuch as no inversion on a large scale would accompany them.
1912 N.E.D. at Thrust-plane The plane of dislocation in an overfault along which the dislocated strata have been driven.
This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).
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n.1883