Figure F28. Core photographs of representative lithologies in Units 6 and 7. A. Unit 6 claystone (interval 343-C0019E-20R-2, 70–106 cm). Note the predominantly intact interval of chert at 103–105 cm. B. Unit 7 yellow-brown and dark brown chert (interval 343-C0019E-21R-CC, 0–14 cm).
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