Figure F7. Core photographs of green calcareous sandy beds with sharp to bioturbated bases and concretions in the lower part of Unit I. A. Green sandy material in burrows below the contact between gray mud (below) and green muddy sand (above) (interval 317-U1352B-7H-6, 43–125 cm). B. Bioturbation of green sandy material into underlying gray mud (interval 317-U1352B-28H-1, 25–65 cm). C. Concretions in a green sandy marlstone (interval 317-U1352B-52X-7, 2–17 cm). D. Sharp contact between green muddy sandstone and gray mud (interval 317-U1352B-17H-4, 1–21 cm). B, C, and D have the same vertical scale.
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