diastrophism








noun Geology.

  1. Also called tectonism. the action of the forces that cause the earth’s crust to be deformed, producing continents, mountains, changes of level, etc.
  2. any such resulting deformation.

noun

  1. the process of movement and deformation of the earth’s crust that gives rise to large-scale features such as continents, ocean basins, and mountainsSee also orogeny, epeirogeny
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