Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A form of thrust fault from beneath a hanging wall of rock

from The Century Dictionary and Cyclopedia

  • n. In geology, a faulted overfold accompanied by a distinct separation of the masses on both sides of the faults, which are thrust or shoved apart in the direction of the line of the fault or thrust-plane.
  • In geology, thrust beyond: applied to the rocks on the upper side of a reversed fault, which are thrust upon those of later age, thus reversing the normal succession.

Etymologies

Sorry, no etymologies found.

Examples

  • The overthrust above which they now passed had occurred at least a million years previous to their arrival on this planet.

    Cattle Town

  • "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.

    Cattle Town

  • 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.

    Hubbert, Marion King

  • The Mid-Elevation Sedimentary Mountains ecoregion includes sections of the Teton and Wyoming ranges, and areas in the overthrust belt underlain by faulted and folded Mesozoic and Paleozoic sedimentary rocks (limestone, dolomite, shale, and sandstone).

    Ecoregions of Wyoming (EPA)

  • The Sedimentary Subalpine Zone ecoregion is found southeast of Yellowstone National Park, in the overthrust belt, and in the northwest corner of the Bighorn Mountains in areas underlain by faulted and folded Mesozoic and Paleozoic sedimentary rocks (limestone, dolomite, shale, and sandstone).

    Ecoregions of Wyoming (EPA)

  • Compressional forces typically result in reverse and overthrust faulting.

    Mountain

  • Here, along the southern border of Virginia, the Blue Ridge overthrust belt forced rocks to the east up and over younger rocks to the west; the area is underlain by the Cambrian Rome Formation that is composed of shale, limestone, siltstone, and dolomite (Virginia Division of Mineral Resources, 1993).

    Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)

  • These forces also created a number of overthrust faults.

    Mountain

  • We call the combination of a fault and a fold in a rock an overthrust fault.

    Folding and faulting in the Earth's crust

  • Strike-slip fault and overthrust and syn and anticline…

    Alabama Rejects Textbooks Containing Evolution - The Panda's Thumb

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