Figure F5. Photomicrograph showing the late-stage infilling of a boring excavated into the phosphatized upper interval of Unit II. Abundant planktonic foraminifers with geopetal infills can be observed in a dark brown micrite matrix (Sample 194-1197B-2R-1, 6-8 cm).

Figure F5. Photomicrograph showing the late-stage infilling of a boring excavated into the phosphatized upper interval of Unit II. Abundant planktonic foraminifers with geopetal infills can be observed in a dark brown micrite matrix (Sample 194-1197B-2R-1, 6-8 cm).