Areas of interest:

Micropaleontology, biostratigraphy

Current projects:

• (1) Neogene planktonic foraminferal biostratigraphy and paleoceanography using IODP samples.
• (2) Neogene stratigraphy and tectonics of Japanese Island Arc.

Recent Publications:

• Lyle, M., Paelike, H., Nishi, H., Raffi, I., Gamage, K., Klaus, A., and the Expedition 320/321 Scientists, 2010, The Pacific Equatorial Age Transect, IODP Expeditions 320 and 321: Building a 50-Million-Year-Long Environmental Record of the Equatorial Pacific Ocean. Scientific Drilling, 9, 4-15.
• Lyle, M., Raffi, I., Paelike, H., Nishi, H., Gamage, K., Klaus, A., and the Expedition 320/321 Scientists, 2009, Pacific Equatorial Transect. Preliminary Report of Integrated Ocean Drilling Program Exp. 321.
• 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, 2009: Proceedings of the Integrated Ocean Drilling Program, vol. 314/315/316. Integrated Ocean Drilling Program Management International, Inc., for the Integrated Ocean Drilling Program.
• Ashi, J., Lallemant, S., Masago, H., and the Expedition 315 Scientists, 2008, NanTroSEIZE Stage 1A: NanTroSEIZE megasplay riser pilot. Preliminary Report of Integrated Ocean Drilling Program Exp. 315.
• Hiroki Hayashi and Masaki Takahashi, 2008: Numerical age of the planktonic foraminiferal zonal boundary between N.15 and N.16 in the mid-latitude northwest Pacific region. Bulletin of the Geological Survey of Japan, 59, 415-422.
• Makoto Matsubara, Hiroki Hayashi, Kazushige Obara and Keiji Kasahara, 2005: Low-velocity oceanic crusts at the top of the Philippine Sea and Pacific plates beneath the Kanto region, central Japan, imaged by seismic tomography. Journal of Geophysical Research, 110, B12304, doi:10.1029/2005JB003673.
• Hiroki Hayashi and Masaki Takahashi, 2004: Numerical age of the boundary between planktonic foraminiferal zones N.13 and N.14 at Japan. Newsletters on Stratigraphy, 40, no. 1/2, 123-135.