Definition of "overthrust" [overthrust]

• A form of thrust fault from beneath a hanging wall of rock (noun)

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• "The overthrust above which they now passed had occurred at least a million years previous to their arrival on this planet."
• ""Well, they'll sweat it out on those slopes this morning?" she added, looking at the foothills that folded higher and higher until the overthrust mountains dominated the skyline."
• "Hubbert also explained the puzzling displacement of enormous blocks of material, known to geologists as overthrust faults, as a consequence of fluid pressure between such blocks and underlying materials."