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cataclasis

A special type of metamorphism in which "weathering" involving mechanical processes along fault zones pulverizes mineral grains into smaller grains and dust. This type of metamorphism depends on forces related to tectonics (faulting). Another form of cataclasis is impacting, which involves planetesimal bodies such as asteroids striking the planet with enough energy to pulverize, or even melt, rock.

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  • Part of Speech: noun
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  • Industry/Domain: Earth science
  • Category: Geology
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