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underthrust

[ uhn-der-thruhst ]

noun

, Geology.
  1. a thrust fault in which the footwall moved and the hanging wall did not ( overthrust ).


underthrust

/ ˈʌndəˌθrʌst /

noun

  1. geology a reverse fault in which the rocks on the lower surface of a fault plane have moved under the relatively static rocks on the upper surface Compare overthrust


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Word History and Origins

Origin of underthrust1

First recorded in 1890–95; under- + thrust

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