Figure F43. Quartz-pyrite veining with well-developed silica-chlorite alteration halos (interval 193-1188A-12R-2, 48-51 cm, Unit 10, in plane-polarized light; width of view = 1.4 mm. Photomicrograph ID# 1188A_111 [modified]; thin section 12). Dashed yellow lines = the main vein.

Figure F43. Quartz-pyrite veining with well-developed silica-chlorite alteration halos (interval 193-1188A-12R-2, 48-51 cm, Unit 10, in plane-polarized light; width of view = 1.4 mm. Photomicrograph ID# 1188A_111 [modified]; thin section 12). Dashed yellow lines = the main vein.