Naturally deformed quartzo-feldspathic rocks
Figure caption
weak deformation (Mulwaree) / strong deformation (Mulwaree) / mylonites (Redbank) / ultramylonites (Redbank)
84
Quartzo-feldspathic ultramylonite; feldspar porphyroclast has asymmetrical tails of recrystallized or neo-mineralized grains.
Feldspar porphyroclast in ultramylonite from the same sample as shown in photo #83. The feldspar porphyroclast has asymmetric tails of recrystallized or neo-mineralized grains as well as an asymmetric concentration of white mica on the NW and SE sides (bright domains). This asymmetry indicate top-to-the-right sense of shear, consistent with other indicators in the rock. (599 A)