mylonitization


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mylonitization

[mī‚län·ə·tə′zā·shən]
(geology)
Rock deformation produced by intense microbrecciation without appreciable chemical alteration of granulated materials.
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References in periodicals archive ?
During later mylonitization, the rims of the plagioclase, quartz, hornblende and biotite grains were recrystallized to matrices of minute grains (20-30 pm).
It may undergo mylonitization, cataclasis, brecciation, geochemical alteration, and development of clay-rich fault gouge.
Structural preparation in the pit areas is intense with up to 200ft wide zones of mylonitization.
39]Ar plateau ages of 364 [+ or -] 2 Ma and 367 [+ or -] 3 Ma, an indication of the age of mylonitization and a minimum age for the metasedimentary unit (Reynolds et al.