from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A fine-grained laminated rock formed by the shifting of rock layers along faults.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any rock that has undergone modifications due to dynamic recrystallization following plastic flow; a schist created by crushed or ground rock.
from The Century Dictionary and Cyclopedia
- n. In petrography, a schist produced by crushing or granulation, that is, by dynamic metamorphism.
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Again, based on visual observations, disseminated nickel-iron alloy mineralization was intersected throughout the hole, to the end at 307 metres, with the exception of one 10.7 metre wide unmineralized gabbro dike and three zones of strong fault gouge, breccias and mylonite that ranged from 7.1 to 20.6 metres wide which did not contain obvious nickel alloy.
The interval exhibits strong chlorite and grey clay alteration with local mylonite and fault gouge.
Structures contained mylonite, with quartz veins, breccias and disseminated sulphides (pyrite and chalcopyrite).
The D-1 conductor exhibits strong chlorite and grey clay alteration with local mylonite and fault gouge; overlying sandstone is bleached and unusually hematitic.