Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. describing a type of metamorphic rock that has undergone shearing and granulation by high mechanical stress

from The Century Dictionary and Cyclopedia

  • Of, pertaining to, or resulting from, a cataclasm.
  • In petrography, noting a structure produced in rocks by crushing or shearing, whereby the minerals are broken into fragments.
  • n. A fragmental texture in a rock or mineral produced by crushing instead of sedimentation.

Etymologies

Sorry, no etymologies found.

Examples

  • The tilted rock strata are comprised of largely carbonate Palaeozoic deposits over 4,000 m thick, Mesozoic deposits at least 1,000 m thick with a variety of sedimentary rocks in a cataclastic sedimentation; and recent Cenozoic deposits of glacial moraines, alluvial gravels and carbonate sediments.

    Huanglong National Scenic Area, China

  • The holes were largely targeted at mineralisation hosted in deep lateritic clays present along a tectonic structure, although several holes also intersected mineralisation in the underlying alkaline and strongly cataclastic granite bedrock.

    Marketwire - Breaking News Releases

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