Definitions
from The Century Dictionary.
- noun 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geology A form of
thrust fault from beneath ahanging wall ofrock
Etymologies
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Examples
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"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 2010
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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.
Cattle Town 2010
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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).
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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).
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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 2009
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These forces also created a number of overthrust faults.
Mountain 2008
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Compressional forces typically result in reverse and overthrust faulting.
Mountain 2008
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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) 2008
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We call the combination of a fault and a fold in a rock an overthrust fault.
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Strike-slip fault and overthrust and syn and anticline…
Alabama Rejects Textbooks Containing Evolution - The Panda's Thumb 2005
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