Figure F10. Core photographs of downhole cave-in. A. Shell hash (interval 317-U1351B-65H-1, 0–39 cm). B. Possible in situ shell hash (interval 317-U1351B-10H-2, 0–29 cm). Note the presence of finer (in situ) sediment at top of section. This shell hash is also found deeper in Section 2 and thus probably does not represent cave-in. C. Distinct sand horizon (interval 317-U1351B-85X-1, 0–26 cm), likely representing cave-in.
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