Rchr
J-GLOBAL ID:200901001921982130   Update date: Feb. 01, 2024

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  (4): earthquake history ,  active submarine fault ,  accretionary prism ,  methane hydrate
Research theme for competitive and other funds  (26):
  • 2019 - 2022 Study on seafloor movement and earthquake history by activity of source faults of Sagami Trough great earthquakes
  • 2018 - 2021 Tsunamigenic normal faults generating large outer-rise earthquake in the Japan Trench margin
  • 2015 - 2018 Accuracy improvement of earthquake history of the Nankai Trough by sediment records from terminal basins
  • 2015 - 2017 Verification of intermittent methane emissions using radiocarbon age of shells from a large scale biological community off Tokai
  • 2009 - 2014 High precision topographical/geological surveys for elucidating the activity history of seismogenic faults
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Papers (141):
  • Ijiri, A, Setoguchi, R, Mitsutome, Y, Toki, T, Murayama, M, Hagino, K, Hamada, Y, Yamagata, T, Matsuzaki, H, Tanikawa, W, et al. Origins of sediments and fluids in submarine mud volcanoes off Tanegashima Island, northern Ryukyu Trench, Japan. Frontiers in Earth Science. 2023. 11
  • Ryo Nakanishi, Juichiro Ashi, Yosuke Miyairi, Yusuke Yokoyama. Relationship between depositional environments and preservabilities of Holocene tsunami deposits on the Hidaka coast, Hokkaido, Japan. Quaternary Science Advances. 2023
  • Ryo Nakanishi, Juichiro Ashi, Masataka Aizawa, Hajime Naruse. Application of mineralogy and geochemistry to identify the landward extent of paleo-tsunami deposits not visible to the naked eye in the coastal wetland of Erimo, Hokkaido, Japan. Sedimentary Geology. 2023. 447. 106365-106365
  • Yuichi Okuma, Atsushi Noda, Hiroaki Koge, Yasuhiro Yamada, Asuka Yamaguchi, Juichiro Ashi. Surface friction of subducting seamounts influences deformation of the accretionary wedge. TECTONOPHYSICS. 2022. 845
  • Ryo Nakanishi, Juichiro Ashi, Yosuke Miyairi, Yusuke Yokoyama. Spatial extent of mid- to late-Holocene sedimentary record of tsunamis along the Southern Kuril Trench, Hokkaido, Japan. Geochemistry, Geophysics, Geosystems. 2022
more...
MISC (54):
  • Juichiro Ashi, Ayanori Misawa, Toshiya Kanamatsu, Ken Ikehara. Fault displacement and seep activity at the western flank of the Miura Knoll, Sagami Bay. 2023
  • Depositional environment of turbidite offshore east of Cape Muroto and paleoseismic history. 2023
  • Juichiro Ashi, Ayanori Misawa, Toshiya Kanamatsu, Ken Ikehara. Fault displacement and seep activity at the western flank of the Miura Knoll, Sagami Bay. 2023
  • Age and frequency of turbidite deposition in the Nankai Trough - A study using nondestructive analyses of physical property and element composition, and radiocarbon dating. 2022
  • Characteristics of deposition by dredged soil dumping in deepsea: an example from Sagami Bay off Misaki. 2022
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Books (8):
  • 水産ハンドブック
    講談社 2012
  • 自然環境学の創る世界
    朝倉書店 2011
  • 付加体と巨大地震発生帯,南海地震の解明に向けて
    東京大学出版会 2009 ISBN:9784130667098
  • 日本地方地質誌5 近畿地方
    朝倉書店 2009
  • 海の環境100の危機
    東京書籍 2006 ISBN:4487801524
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Lectures and oral presentations  (123):
  • Origin of hydrocarbon gases and sediments in submarine mud volcanoes, off Tanegashima Island
    (日本地球化学会年会要旨集(Web) 2020)
  • Characteristics and origin of sediments collected from mud volcanos off Tanegashima
    (日本地球惑星科学連合大会予稿集(Web) 2020)
  • TOC and stable carbon isotope in surface deposit at Tanegashima mud volcanoes
    (日本地球惑星科学連合大会予稿集(Web) 2020)
  • Discharging flux of deep-sourced fluid from submarine mud volcanoes off Tanegashima
    (日本地球惑星科学連合大会予稿集(Web) 2020)
  • The emergence of coastal disasters during the mid-Holocene highstand: An example from the coast of Hidaka, Hokkaido
    (日本地球惑星科学連合大会予稿集(Web) 2020)
more...
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 Graduate School of Frontier Sciences Associate Professor
  • 2001/04 - 2006/03 The University of Tokyo Ocean Research Institute Associate Professor
  • 1993/04 - 2001/03 The University of Tokyo Graduate School of Science 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) (4):
日本堆積学会 ,  日本地質学会 ,  日本地震学会 ,  American Geophysical Union
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