Proc. IODP, 314/315/316, Data report: late Neogene planktonic foraminiferal biostratigraphy of the Nankai Trough, IODP Expedition 315

IODP Proceedings Volume contents Search


Expedition reports Research results Supplementary material Drilling maps Expedition bibliography
Chapter contents Abstract Introduction Methods and materials Results Faunal references Acknowledgments References Figures F1. Site map and topographic data. F2. Age-depth plot. Tables T1. Foraminifers, Hole C0001E. T2. Foraminifers, Hole C0001F. T3. Foraminifers, Hole C0001H. T4. Foraminiferal biohorizons. Plates P1. Dentoglobigerina, Globoconella, and Hirsutella. P2. Globorotalia and Globoturborotalita. P3. Neogloboquadrina and Pulleniatina. P4. Troncorotalia and Sphaeroidinellopsis. PDF file			Previous \| Next doi:10.2204/iodp.proc.314315316.206.2011 Data report: late Neogene planktonic foraminiferal biostratigraphy of the Nankai Trough, IODP Expedition 315¹ Hiroki Hayashi,² Satoru Asano,² Yasuhiro Yamashita,² Takayuki Tanaka,³ and Hiroshi Nishi³ Abstract Planktonic foraminifers from Site C0001, drilled during Integrated Ocean Drilling Program Expedition 315 off the Kumano region in the northwestern Pacific Ocean, were examined to establish a reference biostratigraphy of the Nankai Trough Seismogenic Zone. Planktonic foraminifers are present throughout the cores at this site, with the exception of several barren intervals in the lower part of the section. Seventeen biohorizons are recognized at this site. Among these, 15 biohorizons were refined and 2 biohorizons were detected after the onboard study. The studied sequence correlates with Zones N.17b–N.22, ranging in age from late Miocene to Holocene. A new age-depth plot for the site is proposed based the foraminiferal data from this study combined with nannofossil biohorizons determined on board during the expedition. ¹ Hayashi, H., Asano, S., Yamashita, Y., Tanaka, T., and Nishi, H., 2011. Data report: late Neogene planktonic foraminiferal biostratigraphy of the Nankai Trough, IODP Expedition 315. In Kinoshita, M., Tobin, H., Ashi, J., Kimura, G., Lallemant, S., Screaton, E.J., Curewitz, D., Masago, H., Moe, K.T., and the Expedition 314/315/316 Scientists, Proc. IODP, 314/315/316: Washington, DC (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.314315316.206.2011 ² Interdisciplinary Faculty of Science and Engineering, Shimane University, 1060 Nishikawatsucho, Matsue City, Shimane 690-8504, Japan. Correspondence author: hayashi@riko.shimane-u.ac.jp ³ Department of Earth Science, Graduate School of Science, Tohoku University, Aramaki Aza Aoba, Sendai City, Miyagi 980-8578, Japan. Initial receipt: 5 October 2010 Acceptance: 22 July 2011 Publication: 8 December 2011 MS 314315316-206 Top of page \| Previous \| Next