Proc. IODP, 322, Data report: middle Miocene to Pliocene planktonic foraminiferal biostratigraphy of the northern part of the Shikoku Basin, IODP Expedition 322 Site C0012

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Chapter contents Abstract Introduction Methods and materials Results Faunal references Acknowledgments References Figures F1. Site map. F2. Biozone quality criterion. F3. Age-depth and flux depths. Tables T1. Planktonic foraminifer distribution. T2. Planktonic foraminifer biohorizons. Plate P1. Planktonic foraminifers. PDF file			Previous \| Next doi:10.2204/iodp.proc.322.206.2014 Data report: middle Miocene to Pliocene planktonic foraminiferal biostratigraphy of the northern part of the Shikoku Basin, IODP Expedition 322 Site C0012¹ Hiroki Hayashi,² Kazuki Yamashita,² Pawan Govil,³ Yuki Idehara,² Takayuki Tanaka,⁴ and Hiroshi Nishi⁴ Abstract Planktonic foraminifers collected from Site C0012 drilled during Integrated Ocean Drilling Program Expedition 322 in the northern part of the Shikoku Basin, northwestern Pacific Ocean, were examined to establish a reference biostratigraphy of the Nankai Trough Seismogenic Zone. With the exception of several barren intervals, planktonic foraminifers are present throughout the cores at the studied site. Nineteen biohorizons are recognized at the studied site. Among these, four biohorizons are refined and fifteen are newly detected after the onboard study. The studied sequence correlates with Zones M7 to PL4, ranging in age from middle Miocene to Pliocene. A new age-depth plot of the studied site is presented on the basis of foraminiferal data from this study combined with nannofossil biohorizons determined by the onboard study. ¹ Hayashi, H., Yamashita, K., Govil, P., Idehara, Y., Tanaka, T., and Nishi, H., 2014. Data report: middle Miocene to Pliocene planktonic foraminiferal biostratigraphy of the northern part of the Shikoku Basin, IODP Exp. 322 Site C0012. In Saito, S., Underwood, M.B., Kubo, Y., and the Expedition 322 Scientists, Proc. IODP, 322: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.322.206.2014 ² Interdisciplinary Graduate School of Science and Engineering, Shimane University, 1060 Nishikawatsucho, Matsue City, Shimane 690-8504, Japan. Correspondence author: hayashi@riko.shimane-u.ac.jp ³ National Centre for Antarctic and Ocean Research, Headland Sada, Vasco-da-Gama, Pin-403804 Goa, India ⁴ Department of Earth Science, Graduate School of Science, Tohoku University, Aramaki Aoba, Sendai 980-8578, Japan Initial receipt: 6 June 2012 Acceptance: 22 September 2014 Publication: 12 December 2014 MS 322-206 Top of page \| Previous \| Next