Figure F10. Interbedded white foraminifer nannofossil limestone and dark brownish gray chert of upper Unit II (interval 192-1186A-3R-1, 38-60 cm; Eocene). The chert contains small patches of partially silicified chalk.

Figure F10. Interbedded white foraminifer nannofossil limestone and dark brownish gray chert of upper Unit II (interval 192-1186A-3R-1, 38-60 cm; Eocene). The chert contains small patches of partially silicified chalk.