Figure F7. Lithostratigraphic Unit IV. A. Homogeneous bioturbated clay with pyrite nodules at 3.5 and 10.5 cm (interval 308-U1320A-18X-3, 0–20 cm). B. Mottled clay (interval 308-U1320A-18X-3, 78–112 cm). C. Intensely bioturbated and color-banded mud; light colored sands at 19–21 and 35–37 cm (interval 308-U1320A-18X-5, 15–42 cm). D. Mottled clay with nodule at 88 cm (interval 308-U1320A-19X-2, 72–96 cm). E. Silt and color-banded mud at base of Unit IV (interval 308-U1320A-21X-1, 0–26 cm).
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