Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Of or relating to rocks consisting of cemented fragments that originate from the mechanical breakdown of rocks associated with plate tectonic processes.
from The Century Dictionary.
- 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.
- noun A fragmental texture in a rock or mineral produced by crushing instead of sedimentation.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective geology describing a type of
metamorphic rock that has undergoneshearing andgranulation by highmechanical stress
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[From Norwegian kataklas- (in kataklasstruktur, structure formed by crushing : Greek kata-, cata- + Greek klastos, broken; see clast + Norwegian struktur, structure) + –ic.]
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Examples
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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.
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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.
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