Proc. IODP, 317, Data report: Pliocene and Pleistocene diatom floras and taxonomic notes from the Canterbury Basin (IODP Expedition 317 Hole U1352B), off New Zealand

IODP Proceedings Volume contents Search

Expedition reports Research results Supplementary material Drilling maps Expedition bibliography
Chapter contents Abstract Introduction Materials and methods Results Acknowledgments References Figures F1. Map of the Canterbury Basin. F2. Diatom and resting spore ranges and abundances. F3. Marine, littoral to neritic, and freshwater diatom abundances. Table T1. Diatoms, Hole U1352B. Plates P1. Marine diatoms I. P2. Marine diatoms II. P3. Marine diatoms III. P4. Marine diatoms IV. P5. Littoral to neritic diatoms I. P6. Littoral to neritic diatoms II. P7. Littoral to neritic diatoms III. P8. Littoral to neritic diatoms IV. P9. Freshwater diatoms and Chaetoceros resting spores. P10. Marine diatom Chaetoceros resting spores. P11. SEM images of diatoms. P12. SEM images of Chaetoceros resting spores. Appendix Taxonomic notes and floral references PDF file			Previous \| Next doi:10.2204/iodp.proc.317.202.2013 Data report: Pliocene and Pleistocene diatom floras and taxonomic notes from the Canterbury Basin (IODP Expedition 317 Hole U1352B), off New Zealand¹ Itsuki Suto,² Keita Kawamura,³ and Shun Chiyonobu⁴ Abstract Diatom analyses of upper Pliocene and Pleistocene sediments (~2780–290 ka age, dated according to the results of onboard calcareous nannoplankton biostratigraphic research) from the Canterbury Basin continental slope (Hole U1352B of Integrated Ocean Drilling Program Expedition 317) reveal strong warm and cold fluctuations that coincide with global benthic foraminiferal δ¹⁸O records, although the preservation and occurrences of diatoms were generally poor and rare, respectively, and the diatom biostratigraphic events were unknown. Moreover, abundant occurrences of diatom resting spores from ~1700 to 1100 ka indicate that eutrophication increased along the coastal region after upwelling strengthened and the nutrient supply was unstable and sporadic from 1250 to 1100 ka. ¹Suto, I., Kawamura, K., and Chiyonobu, S., 2013. Pliocene and Pleistocene diatom floras and taxonomic notes from the Canterbury Basin (IODP Expedition 317 Hole U1352B), off New Zealand. In Fulthorpe, C.S., Hoyanagi, K., Blum, P., and the Expedition 317 Scientists, Proc. IODP, 317: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.317.202.2013 ²Department of Earth and Planetary Sciences, Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8601, Japan. suto.itsuki@a.mbox.nagoya-u.ac.jp ³Nissei Gakuen, 2739 Hattaino, Hakusan-cho, Tsu, Mie 515-2692, Japan. ⁴Research Institute of Innovative Technology for the Earth, CO₂ Storage Research Group, 9-2 Kizugawadai, Kizugawa, Kyoto 619-0292, Japan. Initial receipt: 5 August 2012 Acceptance: 1 May 2013 Publication: 5 August 2013 MS 317-202 Top of page \| Previous \| Next