Keiji Horikawa
 
　
研究内容
  1. 窒素同位体から推察する過去１０万年間の北西部北太平洋の栄養塩状況
  2. アルケノンと窒素同位体比から推察する過去７５万年間の東赤道太平洋の大気ー海洋状態の変動
学歴

2003-2006; Ph.D. (Earth Science), Hokkaido University, 2006, (M. Minagawa, advisor), Doctoral thesis entitled “Response of nitrogen cycling to climate-

related oceanographic changes during the last glacial-interglacial cycle: a contrastive study between the eastern and western equatorial Pacific”
1999-2003; M.Sc (Geology), Chiba University, 2001
1995-1999; B.Sc. (Geology), Chiba University, 1999

職歴

July 2006- Present; Researcher (Center for Advanced Marine Core Research, Kochi University)
Sep 2003-Mar 2006; JSPS Research Fellowships for Young Scientists
Apr 2003-Aug 2003; COE research assistant (Hokkaido University)

 
査読論文
  1. 堀川恵司・高野壮太郎・伊藤慎・中野、2001、上総層群の陸棚-深海堆積物に記録された氷河性海水準変動と古海洋変動、第四紀研究、v40、p283-290
  2. Ito, M. and Horikawa, K., 2001, Millennial- to decadal-scale fluctuation in the paleo-Kuroshio Current documented in the Middle Pleistocene shelf succession on the Boso Peninsula, Japan. Sedimentary Geology, v. 137, p. 1-8.
  3. Horikawa, K. and Ito, M., 2004, Long-term ENSO-like events documented in the Middle Pleistocene shelf successions, Boso Peninsula, Japan. Palaeogeography, Palaeoclimatology, Palaeoecology, v. 203, p. 239-251.
  4. Takano, S. M. Ito, T. Nakano, K. Horikawa, Y. Nakamura, and T. Saito, 2004, Sequence-stratigraphic signatures of hemipelagic siltstones in deep-water successions: the Lower Pleistocene Kiwada and Otadai Formations, Boso Peninsula, Japan, Sedimentary Geology, v. 170, p. 189-206.
  5. Horikawa, K, Minagawa, M., Kato, Y., Murayama, M, and Nagao, S, 2006, N2 fixation variability in the oligotrophic Sulu Sea, western equatorial Pacific region over the past 83 kyr, Journal of Oceanography, v. 62, p. 427–439.
  6. Horikawa, K., Minagawa, M., Murayama, M., Kato, Y, and Asahi, H., 2006, Spatial and temporal sea-surface temperatures in the eastern equatorial Pacific over the past 150 kyr, Geophysical Research Letters, Vol. 33, L13605, doi:10.1029/2006GL025948.
  7. 堀川恵司・重光雅仁・南川雅男、窒素同位体比を用いた古海洋解析、2007, 海の研究, 16(5), 375-399.
 
投稿中
 
Horikawa K, Minagawa, M. Kato, Y. Murayama, M., Productivity evolution forced by precessional cycles in the North Equatorial Countercurrent in the eastern equatorial Pacific over the last 150 kyr (submitted to Quaternary Science Reviews)
khori@cc.kochi-u.ac.jp
 
Center for Advanced Marine Core Research,
Kochi University,
B200 Monobe, Nankoku, Kochi, 783-8502 JAPAN