Figure F132. Mineralized volcanic breccia (interval 309-1256D-122R-1, 105–123 cm). Clasts are composed of altered glass and large fragments of moderately to highly altered cryptocrystalline and variolitic basalt. Matrix is composed of saponite, chlorite-smectite, disseminated sulfides, anhydrite, and minor calcite.
Previous | Close | Next | Top of page