Figure F12. Core photographs of sedimentary structures in Core 324-U1347A-8R (stratigraphic Unit III), Hole U1347A. A. Coarse radiolarian-rich band at base, with finer bioturbated sandy siltstone above. Chaotic churned strata indicate rapid lateral transport of material. B. Dark irregular claystone bleb in greenish gray sandy siltstone matrix. C. Dark claystone blebs, probably rip-up clasts from rapid lateral emplacement of sediments, in greenish siltstone matrix. Bioturbation also visible. D. Graded sequence showing fining upward from coarse sandy siltstone to fine dark claystone. Lower beds are laminated. Chondrites trace fossils visible at top of sequence truncated by erosional contact with next coarse layer above.
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