thrust fault

A thrust fault is a particular type of fault, or break in the fabric of the Earth's crust with resulting movement of each side against the other, in which a lower stratigraphic position is pushed up and over another. This is the result of compressional forces.
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Noun
1. a geological fault in which the upper side appears to have been pushed upward by compression
(synonym) overthrust fault, reverse fault
(hypernym) inclined fault

A reverse fault marked by a dip of 450 or less.