Rchr
J-GLOBAL ID：201801009901996402   Update date: Jun. 04, 2024

Horikawa Keiji

Horikawa Keiji
Affiliation and department：
University of Toyama Faculty of ScienceDepartment of Environmental and Biology Chemistry

About University of Toyama Faculty of ScienceDepartment of Environmental and Biology Chemistry


Homepage URL  (1)： https://sites.google.com/view/kei-horikawa/
Research field  (2)： Space and planetary science ,  Environmental dynamics
Research keywords  (14)： SWAIS2C ,  南極氷床 ,  鮮新世温暖期 ,  地球化学 ,  海洋堆積物 ,  IODP ,  温暖化 ,  黒潮 ,  ベーリング海 ,  日本海 ,  微量元素分析 ,  海洋化学 ,  古環境解析 ,  ネオジム同位体
Research theme for competitive and other funds  (20)：
  • 2022 - 2025 How asymmetric currents in a deep sea channel affect on the land-deep sea materials transport and habitat for benthos?
  • 2021 - 2025 Study on a huge collapse of the Antarctic Ice Sheet during past warmer periods: New insights from Pb isotope analysis
  • 2021 - 2025 氷床融解最前線における鮮新世温暖期南極氷床崩壊イベント検証と地域性解明
  • 2018 - 2023 Water and soil environmental changes and dawn of urban mine around the early cities in Ancient West Asia
  • 2018 - 2021 Marine environments recorded in siliceous microfossil skeletons: species-level analysis of isotopic ratios and minor trace elements
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Papers (45)：
  • Jonaotaro Onodera, Alan E.S. Kemp, Richard B. Pearce, Keiji Horikawa, Kozo Takahashi. Origins and paleoclimatic and paleoceanographic significance of laminated sediments of middle Pleistocene age from the southern Bering Sea. Marine Micropaleontology. 2024. 186
  • Keiji Horikawa. Studies of past ocean circulation based on neodymium isotope analysis. 2023. 57. 2. 74-92
  • Siteng Justin Zhu, Jing Zhang, Takeshi Matsuno, Eisuke Tsutsumi, Shota Kambayashi, Keiji Horikawa, Katsumi Takayama, Mutsuo Inoue, Seiya Nagao. Quantifying the Water Contribution of Subtropical Mode Water and Related Isopycnal/Diapycnal Water Mixing in the Western Pacific Boundary Current Area Using Radiocesium: A Significant Nutrient Contribution From Subtropical Pacific Gyre to the Marginal Region. Journal of Geophysical Research: Oceans. 2023. 128. 4
  • Mutsumi Iizuka, Osamu Seki, David J. Wilson, Yusuke Suganuma, Keiji Horikawa, Tina van de Flierdt, Minoru Ikehara, Takuya Itaki, Tomohisa Irino, Masanobu Yamamoto, et al. Multiple episodes of ice loss from the Wilkes Subglacial Basin during the Last Interglacial. Nature Communications. 2023. 14. 1
  • Keiji Horikawa, Tomohiro Kodaira, Jing Zhang, Hajime Obata. Salinity-oxygen isotope relationship during an El Niño (2014-2015) in the southwestern Pacific and comparisons with GEOSECS data (La Niña, 1973-1974). Marine Chemistry. 2023. 104222-104222
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MISC (27)：
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Professional career (1)：
  • 博士(地球環境科学) (北海道大学)
Committee career (1)：
  • 2020/11 - 現在 日本学術会議 日本学術会議地球惑星科学委員会SCOR分科会GEOTRACE小委員会, 委員
Awards (1)：
  • 2007 - 奨励論文賞 N2fixation variability in the oligotrophic Sulu Sea, western equatorial Pacific region over the past 83 kyr
Association Membership(s) (6)：
The Geological Society of America ,  American Geophysical Union ,  日本地球惑星科学連合 ,  地球環境史学会 ,  日本海洋学会 ,  日本地球化学会
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