Figure F7. Metasedimentary rock fragments, altered biotite, muscovite/quartz intergrowth, and monocrystalline quartz set in a microcrystalline carbonate cement (Sample 210-1276A-81R-3, 134 cm). A. Plane-polarized light. B. Cross-polarized light.

Figure F7. Metasedimentary rock fragments, altered biotite, muscovite/quartz intergrowth, and monocrystalline quartz set in a microcrystalline carbonate cement (Sample 210-1276A-81R-3, 134 cm). A. Plane-polarized light. B. Cross-polarized light.