Plate 4. Thin-section photomicrographs of structures in clay-rich matrix cataclastic breccias. 4. Sample 161-976B-91R-1, 44-47 cm. Intensive cataclastic breakage of a garnet-bearing schist porphyroclast. Note lack of displacement between the broken halves of porphyroclast (HGS) and pronounced cataclastic flow marked by alienation of micas (arrows). Plane light. Scale bar = 1 mm.