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Figure F16. A. Bivalve shell (interval 311-U1328E-9X-3, 25–46 cm) and abundant sulfide mottling and bioturbation structures. This photograph is from the digital imaging system and was taken right after splitting and scraping the core. B. Same interval as in (A) one day later. The core was accidentally not scraped before the photograph was taken. The comparison shows clearly that sulfide structures fade very quickly.
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