Cataclastic

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  1. Pertaining to the structure produced in a rock by the action of severe mechanical stress during dynamic metamorphism; characteristic features include the bending, breaking, and granulation of the minerals. Also said of the rocks exhibiting such structures. See also: mortar structure AGI
  2. Pertaining to clastic rocks, the fragments of which have been produced by the fracture of preexisting rocks by Earth stresses; e.g., crush breccia. Syn: kataclastic


Source: Dictionary of Mining, Mineral, and Related Terms


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