Figure F9. Core samples from Subunit VIC. A. Cu-rich sulfide-banded cross-laminated sandstone (interval 169-856H-31R-1, 99-106.5 cm). B. Sulfide-banded sandstone where fibrous chlorite replaced detrital quartz grains and chalcopyrite precipitated within pore spaces (interval 169-856H-31R-1, 36.5-47 cm).