Figure F7. Close-up photographs of lithologies from Unit III. A. Subunit IIIA, consisting of clayey nannofossils chalk with Zoophycos and pyrite (interval 207-1260A-31R-3, 120–140 cm). B. Subunit IIIB with yellowish brown color mottles above the K/T boundary (interval 207-1260A-36R-4, 30–50 cm). C. Color alternations of Subunit IIIC with increasing clay content (interval 207-1260A-41R-5, 100

Figure F7. Close-up photographs of lithologies from Unit III. A. Subunit IIIA, consisting of clayey nannofossils chalk with Zoophycos and pyrite (interval 207-1260A-31R-3, 120–140 cm). B. Subunit IIIB with yellowish brown color mottles above the K/T boundary (interval 207-1260A-36R-4, 30–50 cm). C. Color alternations of Subunit IIIC with increasing clay content (interval 207-1260A-41R-5, 100–120 cm).