Rchr
J-GLOBAL ID:200901001921982130
Update date: Apr. 27, 2024
Ashi Juichiro
アシ ジュイチロウ | Ashi Juichiro
Affiliation and department:
Job title:
Associate Professor
Other affiliations (1):
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
- 2008 - 2010 Deformation structures and active processed of Enshu active faults
- 2006 - 2008 Dynamics of accretionary prism and seismogenic fault in subduction zone
- 2004 - 2007 Study on Reconstruction and Prediction of Active Fault Activity in the Nankai Trough using Pinpoint Sediment Sampling
- 2004 - 2006 Integrated study of environmental impact of gas hydrate
- 2004 - 2006 Study of the thermal structure of the seismogenic zone along the Nankai margin through heat flow measurements in shallow sea areas
- 1999 - 2004 海洋プレート沈み込み帯の研究
- 1999 - 2004 海底メタンハイドレート層の研究
- 2001 - 2003 Short-term variation and history of cold seep activity along active faults off Tokai
- 2000 - 2002 Double BSR in Nankai Trough as a tool to study stability of subsurface gas hydrates
- 1999 - 2002 Rate of displacement and recurrence time of earthquake of the submarine active fault off Tokai
- 2000 - 2001 High-Resolution Study of Subsurface Geology using Core-Log Data Integration
- 1998 - 1999 造構応力による圧密の定量的評価の研究
- 1996 - 1997 Formation of sedimentary structures in flume experiments under upper-flow-regime conditions
- 1995 - 1997 自己浮上式海底熱流量計による西南日本沈み込み帯の熱的構造の研究
- 1995 - 1996 Experimental studies on the occurrence, formation, and dissociation of methane hydrates.
- 1994 - 1996 Study of Ocean Floor Structure and Evolution by Drilling
- 1994 - 1996 Interdisciplinary and international cooperative studies on fluid circulations in the Nankai Trough accretionary prism
- 1995 - 1995 帯磁率異方性を用いた未固結堆積物の変形構造解析
- 1993 - 1995 Development of portable, visible to infra-red spectrometer to measure geophysical and geochemical properties of rocks
- 1992 - 1993 Study of World Ocean Floor by Drilling & Down hole Measurement
- 1989 - 1991 世界各地の海溝・背弧海盆と日本周辺海域との掘削及び潜航による比較研究
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Papers (147):
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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
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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
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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
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Yamaguchi Asuka, Fukuchi Rina, Hamada Yohei, Koge Hiroaki, Kawamura Kiichiro, Ijiri Akira, Okuda Hanaya, Hamahashi Mari, Terui Konosuke, Hosokawa Takahiro, et al. Updating tectonic evolution of the Nankai accretionary prism and geological structures of the boundary between segments of megathrust earthquakes based on submersible survey along Shionomisaki submarine canyon: Initial report of R/V Yokosuka YK23-10S cruise. Annual Meeting of the Geological Society of Japan. 2023. 2023. 189
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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
more...
MISC (55):
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Juichiro Ashi, Ayanori Misawa, Toshiya Kanamatsu, Ken Ikehara. Fault displacement and seep activity at the western flank of the Miura Knoll, Sagami Bay. 2023
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Depositional environment of turbidite offshore east of Cape Muroto and paleoseismic history. 2023
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Juichiro Ashi, Ayanori Misawa, Toshiya Kanamatsu, Ken Ikehara. Fault displacement and seep activity at the western flank of the Miura Knoll, Sagami Bay. 2023
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山口飛鳥, 福地里菜, 濱田洋平, 高下裕章, 川村喜一郎, 井尻暁, 奥田花也, 浜橋真理, 照井孝之介, 細川貴弘, et al. Updating tectonic evolution of the Nankai accretionary prism and geological structures of the boundary between segments of megathrust earthquakes based on submersible survey along Shionomisaki submarine canyon: Initial report of R/V Yokosuka YK23-10S cruise. 日本地質学会学術大会(Web). 2023. 130th
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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
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Books (8):
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水産ハンドブック
講談社 2012
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自然環境学の創る世界
朝倉書店 2011
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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
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日本地方地質誌5 近畿地方
朝倉書店 2009
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海の環境100の危機
東京書籍 2006 ISBN:4487801524
more...
Lectures and oral presentations (123):
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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)
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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)
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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)
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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)
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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):
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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