Figure F25. Bioturbated grayish brown limestone above a dark chert interval (interval 192-1186A-28R-3, 12-36 cm; Subunit IIIB; Aptian-Albian;). The chert contains light spots of partially silicified limestone.

Figure F25. Bioturbated grayish brown limestone above a dark chert interval (interval 192-1186A-28R-3, 12-36 cm; Subunit IIIB; Aptian-Albian;). The chert contains light spots of partially silicified limestone.