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Figure F20. Planktonic foraminifer abundance and benthic/planktonic foraminifer ratios, Sites U1337 and U1338. Red line = average values. Light blue shading = low-carbonate (dissolution) interval ("carbonate crash") (Lyle et al., 1995). Downcore variations in planktonic vs. benthic foraminifers reflect intervals of dissolution during the Pleistocene to early Miocene. Benthic foraminifers are more resistant to dissolution than most planktonic forms. PF = planktonic foraminifer.

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