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.
Sorry, no etymologies found.
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.
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.