from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of mylonite.
Sorry, no etymologies found.
And speaking of mylonites once again, it turns out that mylonitic quartzite was rock of the week at All of My Faults Are Stress Related.
Mylonites are one of my favorite types of rocks, and long ago I had a wonderful introduction to them in the Snake Range, a metamorphic core complex with mylonites along and below the main décollement, a low-angle normal fault sometimes referred to as a detachment fault.
Cherty quartzites interbedded with mylonites occur on the flanks of the Nandi hills, but their age is not known.
Four muscovite grains separated from mylonites within the shear zone yielded 40Ar/39Ar plateau ages ranging from 128. 5-126.1 million years ago.