Figure F6. Core images of dark–light cycles and lithologic boundaries in Unit II (Sections 339-U1387C-29R-5A and 29R-6A). A. Boundary between very dark greenish gray nannofossil mud and underlying greenish gray nannofossil mud. B. Boundary between greenish gray silty sand with biogenic carbonate and underlying very dark gray nannofossil mud.
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