underthrust

/ˈʌndərˌθrʌst/
noun
  1. A geological process where one tectonic plate moves beneath another.
    • The mountain range formed as a result of continuous underthrust over millions of years.
    • The underthrust of the oceanic plate created a deep ocean trench.
    • Scientists studied the underthrust to understand earthquake patterns in the region.
verb
  1. To push or move something underneath, especially in geology where one plate moves under another.
    • The model shows how the slab can underthrust at a shallow angle.
    • The denser plate began to underthrust the continental plate.
    • Over time, the oceanic crust will underthrust the landmass, causing volcanic activity.
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