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doi:10.2204/iodp.proc.311.211.2009

Data report: diatom and foraminiferal assemblages in Pleistocene turbidite sediments from the Cascadia margin (IODP Expedition 311), northeast Pacific¹

Fumio Akiba,² Yoko Inoue,³ Megumi Saito-Kato,⁴ and John Pohlman⁵

Abstract

Diatom and foraminiferal analyses of the Pleistocene turbidites in the Cascadia margin suggest that turbidite sediments originated mainly in the landward shelf area and were displaced to the present deep-sea site, which maintained a constant depth during this time. Abundant and highly fluctuating occurrences of shallow-marine and nonmarine diatoms may reflect the global glacioeustatic sea level changes in the Pleistocene.

¹Akiba, F., Inoue, Y., Saito-Kato, M., and Pohlman, J., 2009. Data report: diatom and foraminiferal assemblages in Pleistocene turbidite sediments from the Cascadia margin (IODP Expedition 311), northeast Pacific. In Riedel, M., Collett, T.S., Malone, M.J., and the Expedition 311 Scientists, Proc. IODP, 311: Washington, DC (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.311.211.2009

²Diatom Minilab Akiba, Ltd., 632-12 Iwasawa, Hanno, Saitama 357-0023, Japan. Correspondence author: Akiba357@hanno.jp

³Inoue Paleolab, 4-6-6 Hamadayama, Suginami, Tokyo 168-0065, Japan.

⁴National Museum of Nature and Science, 3-23-1 Hyakunin-cho, Shinjuku, Tokyo 169-0073, Japan.

⁵U.S. Geological Survey, Woods Hole Science Center, 384 Woods Hole Road, Woods Hole MA 02543, USA.

Initial Receipt: 7 August 2008
Acceptance: 4 December 2008
Publication: 18 March 2009
MS 311-211

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