J-GLOBAL ID:200901001921982130   Update date: May. 25, 2020

Ashi Juichiro

アシ ジュイチロウ | Ashi Juichiro
Affiliation and department:
Job title: Associate Professor
Other affiliations (1):
  • The University of Tokyo  Atmosphere and Ocean Research Institute, Ocean Floor Geoscience Group   Associate Professor
Homepage URL  (1): http://ofgs.aori.u-tokyo.ac.jp/ashi/ashi-res-j.html
Research field  (2): Solid earth science ,  Disaster prevention engineering
Research keywords  (3): accretionary prism ,  methane hydrate ,  active submarine fault
Research theme for competitive and other funds  (3):
  • Fluid circulations in the Nankai Trough accretionary prism
  • Distribution of methane hydrate BSRs and its implications for faulting, sedimentary and erosional processes
  • Structure and Hydrogeology of the Nankai accretionary prism
Papers (55):
  • Hasegawa, R, Yamaguchi, A, Fukuchi, R, Hamada, Y, Ogawa, N, Kitamura, K, Kimura, G, Ashi, J, Ishikawa, T. Postseismic fluid discharge chemically recorded in altered pseudotachylyte discovered from an ancient megasplay fault: an example from the Nobeoka Thrust in the Shimanto accretionary complex, SW Japan. Progress in Earth and Planetary Science. 2019
  • Kioka, A, Tsuji, T, Otsuka, H, Ashi, J. Methane concentration in mud conduits of submarine mud volcanoes: A coupled geochemical and geophysical approach. Geochemistry, Geophysics, Geosystems. 2019. 20
  • Koge, H, Yamada, Y, Ohde, A, Bauville, A, Yamaguchi, A, Ashi, J. Dynamic formation process of thick deformation zone on the shallow plate boundary fault of the Japan Trench: insight from analog experiments of half-graben subduction. Progress in Earth and Planetary Science. 2018. 5. 69
  • Okutsu N, Ashi J, Yamaguchi A, Irino T, Ikehara K, Kanamatsu T, Suganuma Y, Murayama M. Evidence for surface sediment remobilization by earthquakes in the Nankai forearc region from sedimentary records. Geological Society, London, Special Publications. 2018. 477
  • Ijiri A, Iijima K, Tsunogai U, Ashi J, Inagaki F. Clay Mineral Suites in Submarine Mud Volcanoes in the Kumano Forearc Basin, Nankai Trough: Constraints on the Origin of Mud Volcano Sediments. Geosciences. 2018. 8
MISC (10):
  • Toki Tomohiro, Higa Ryosaku, Ijiri Akira, Tsunogai Urumu, Ashi Juichiro. Sources of seeping fluids, and distribution and migration of pore fluids, inferred by chemical compositions of pore water from sediment at cold seep sites off Kumano. Annual Meeting of the Geological Society of Japan. 2015. 2015. 0
  • Ijiri Akira, Takai Ken, Ashi Juichiro, Inagaki Fumio, Toki Tomohiro, Yamaguchi Yasuhiko, Kawagucci Shinsuke, Hattori Shohei, Morono Yuki, Yoshida Naohiro, Tsunogai Urumu, Nakamura Koichi. Biogeochemistry on mud-volcano sediments from the Kumano forearc basin, Japan. Abstracts of Annual Meeting of the Geochemical Society of Japan. 2011. 58. 0. 93-93
  • Ijiri Akira, Sakai Saburo, Ohashi Mami, Toki Tomohiro, Yamaguchi Yasuhiko, Inagaki Fumio, Morono Yuki, Imachi Hiroyuki, Terada Takeshi, Ashi Juichiro, Nakamura Koichi. Oxygen and hydrogen isotope analysis of interstitial water by using CRDS on Deep Sea Drilling Vessel CHIKYU. Abstracts of Annual Meeting of the Geochemical Society of Japan. 2009. 56. 0. 148-148
  • Tobin, H, Kinoshita, M, Ashi, J, Lallemant, S, Kimura, G, Screaton, E, Thu, M.-K, Masago, H, Curewitz, D, IODP Expedition, Scientific Party. NanTroSEIZE Stage 1 Expeditions 314, 315, and 316: First Drilling Program of the Nankai Trough Seismogenic Zone Experiments. Scientific Drilling. 2009. 8. 4-17
  • Maegawa Kenji, Toki Tomohiro, Kameyama Sohiko, Tsunogai Urumu, Nakagawa Fumiko, Soh Woon, Ashi Juichiro, Kinoshita Masataka. Estimate of methane flux from core samples at forearc area obatained by NSS(Navigable Sampling System). Abstracts of Annual Meeting of the Geochemical Society of Japan. 2005. 52. 0. 40-40
Books (1):
  • Photographic Atlas of an Accretionary Prism(Geologic Structures of the Shimanto Belt, Japan)
    University of Tokyo Press 1992
Education (4):
  • 1987 - 1991 The University of Tokyo Graduate School of Science Department of Geology
  • - 1991 The University of Tokyo Graduate School, Division of Science
  • 1985 - 1987 Kobe University Graduate School of Science Department of Earth Sciences
  • 1981 - 1985 Kobe University Faculty of Science Department of Earth Sciences
Professional career (1):
  • Doctor of Science (The University of Tokyo)
Work history (7):
  • 2006/04 - 現在 The University of Tokyo Associate Professor
  • 2001/04 - 2006/03 The University of Tokyo Associate Professor
  • 1993/04 - 2001/03 The University of Tokyo Assistant Professor
  • 1993 - 2001 Graduate School of Science, The University of Tokyo,
  • 1991/04 - 1993/03 JSPS Post-doctoral Research Fellow
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Association Membership(s) (1):
American Geophysical Union
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