UJIIE Kohtaro
- Affiliation
- Institute of Life and Environmental Sciences
- Official title
- Professor
- URL
- +@J?>>:Xgc<:DAaIHJ@J76a68a?E
- Research fields
Geology - Research keywords
slow earthquakes accretionary prism subduction zone fault earthquake faulting frictional property deep ocean drilling - Research projects
Metamorphic rocks in Corsica Island: Key to understanding megathrust slip in cold subduction zones 2020-10 -- 2024-03 UJIIE Kohtaro Japan Society for the Promotion of Science/Fund for the Promotion of Joint International Research (Fostering Joint International Research (B)) 16,900,000Yen 琉球石灰岩における断層摩擦発熱の検出と活断層地震性すべり評価 2020-07 -- 2022-03 UJIIE Kohtaro Japan Society for the Promotion of Science/Grant-in-Aid for Challenging Research (Exploratory) 6,370,000Yen Study on geological perspectives, frictional and hydrological properties of slow earthquakes 2016-06 -- 2021-03 UJIIE Kohtaro Japan Society for the Promotion of Science/Grant-in-Aid for Scientific Research on Innovative Areas 189,930,000Yen Detection of frictional heating on faults using Raman spectra of carbonaceous material 2014-04 -- 2017-03 UJIIE Kohtaro Japan Society of for the Promotion of Science/Grant-in-Aid for Scientific Research (B) 9,360,000Yen 日本海溝掘削(JTRACK)実現に向けたプロポーザル作成と事前研究 2014 -- 2017 UJIIE Kohtaro Japan Agency for Marine-Earth Science and Technology/Joint Research Costa Rica Seismogenesis Project 2011 -- 2014 氏家恒太郎 独立行政法人海洋研究開発機構/その他 Materials and slip processes of seismogenic faults 2009-07 -- 2014-03 KIMURA Gaku Japan Society for the Promotion of Science (JSPS)/Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area) Effects of dehydration of clay minerals on seismic slip 2009-04 -- 2012-03 UJIIE Kohtaro Japan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (B) 6,760,000Yen Frictional melting processes during subduction zone earthquakes : Inference from pseudotachylytes and high-velocity shear experiments 2005-04 -- 2007-03 UJIIE Kohtaro Japan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (B) 9,600,000Yen 氏家恒太郎 2003 -- 2004 UJIIE Kohtaro Japan Society for the Promotion of Science/Grant-in-Aid for Scientific Research (B) 3,100,000Yen - Career history
2024-04 -- (current) University of TsukubaGraduate School of Life and Environmental SciencesProfessor 2010-06 -- 2024-03 University of TsukubaGraduate School of Life and Environmental SciencesAssociate Professor 2017-10 -- 2017-11 新潟大学理学部非常勤講師 2014-09 -- 2014-09 静岡大学大学院理学研究科非常勤講師 2014-04 -- 2019-03 Japan Agency for Marine-Earth Science and TechnologyResearch and Development Center for Ocean Drilling ScienceVisiting Senior Scientist 2014-02 -- 2014-02 東北大学大学院理学研究科非常勤講師 2011-04 -- 2014-03 独立行政法人海洋研究開発機構地球内部ダイナミクス領域招聘主任研究員 2010-04 -- 2010-05 JAMSTECInstitute for Research on Earth EvolutionSenior Scientist 2009-04 -- 2010-03 JAMSTECInstitute for Research on Earth EvolutionScientist 2008-05 -- 2009-03 University of California, San DiegoScripps Institution of OceanographyVisiting Scholar more... - Academic background
1995-04 -- 1998-03 Department of Earth and Planetary Sciences Kyushu University 1993-04 -- 1995-03 Department of Earth and Planetary Sciences Kyushu University 1989-04 -- 1993-03 Institute of Earth Science Faculty of Science Kagoshima University - Degree
1998-03 Science Kyushu University - Academic societies
2009 -- (current) JAPAN GEOSCIENCE UNION 2000 -- (current) American Geophysical Union 1993 -- (current) THE GEOLOGICAL SOCIETY OF JAPAN - Honors & Awards
2017-02 University of Tsukuba 2016 BEST FACULTY MEMBER 大学教員業績評価により、研究・社会貢献において極めて優れた活動を行った。 2016-05 The Progress in Earth and Planetary Science Most Accessed Paper Awards 2016 Most accessed papers published in 2014–2015 2015-06 日本地質学会小藤文次郎賞 重要な発見・独創的な発想を含む論文の公表 - Articles
- Deformation mechanisms and fluid conditions of mélange shear zones associated with seamount subduction
Frank Madison; Ujiie Kohtaro; Motohashi Ginta; Nagaya ...
Progress in Earth and Planetary Science/11(1), 2024-06 - Duplex Underplating, Sediment Dehydration and Quartz Vein Mineralization in the Deep Tremor Source Region
Ujiie Kohtaro; Nishiyama Naoki; Yamamoto Hisaki; Yamas...
Journal of Geophysical Research B: Solid Earth/129(2), 2024-02 - Deformation microstructures of low- and high-strain epidote-blueschist (Ryukyu arc, Japan): Implications for subduction interface rheology
Caroli Sara De; Fagereng Åke; Ujiie Kohtaro; Blenkinso...
JOURNAL OF STRUCTURAL GEOLOGY/180, 2024-03 - Lowering of the kinetic barrier of clay-mineral reactions along a seismogenic fault: Example from the Nankai subduction zone, Japan
Masumoto Hirokazu; Kameda Jun; Hamada Yohei; Ujiie Ko...
TECTONOPHYSICS/868, 2023-12-05 - クラックシールせん断脈に記録されたスロー地震発生履歴
西山直毅; 氏家 恒太郎; 加納将行
月刊地球/44(11)/pp.551-560, 2022-11 - プレート沈み込み帯における微動の地質学的実体
氏家 恒太郎; 西山直毅; 山下 穂
月刊地球/44(11)/pp.543-550, 2022-11 - 総説:スロー地震に関する地質学的・実験的・地震学的研究の連携と進展
氏家 恒太郎; 岡﨑啓史; 平内健一; ウォリスサイモン
月刊地球/44(11)/pp.511-513, 2022-11 - Megathrust slip enhanced by metasomatic actinolite in the source region of deep slow slip
Naoki Nishiyama; Ujiie Kohtaro; Kazuya Noro; Yasushi ...
LITHOS/446, 2023-06 - Origin of alkaline basaltic intrusive rocks in an exhumed accretionary complex: Implications for past petit-spot volcanism in the ocean
Ginta Motohashi; Takashi Sano; Ujiie Kohtaro; Madison ...
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS/24(4), 2023-04 - Depth-dependent slow earthquakes controlled by temperature dependence of brittle-ductile transitional rheology
Ryosuke Ando; Ujiie Kohtaro; Naoki Nishiyama; Yasushi ...
GEOPHYSICAL RESEARCH LETTERS/50(5), 2023-03 - Middle Miocene forearc alkaline magmatism in Amami-Oshima Island, central Ryukyu Arc: implications for paleoreconstruction of Shikoku Basin
Ginta Motohashi; Osamu Ishizuka; Hirokuni Oda; Takashi...
Earth, Planets and Space/75(1), 2023-01 - Megathrust shear modulated by albite metasomatism in subduction mélanges
Ujiie Kohtaro; Noro Kazuya; Shigematsu Norio; Fagereng A...
Geochemistry, Geophysics, Geosystems/23, 2022-08 - Rheology of naturally deformed antigorite serpentinite: strain and strain-rate dependence at mantle-wedge conditions
Tulley C. J.; Fagereng A.; Ujiie Kohtaro; Piazolo S.; ...
Geophysical Research Letters/49, 2022-08 - Embrittlement within viscous shear zones across the base of the subduction thrust seismogenic zone
Tulley C. J.; A. Fagereng; Ujiie Kohtaro; Diener J. F...
Geochemistry, Geophysics, Geosystems/23, 2022-06 - Deformation process and mechanism of the frontal megathrust at the Nankai subduction zone
Gaku Kimura; Yohei Hamada; Suguru Yabe; Asuka Yamaguc...
Geochemistry, Geophysics, Geosystems/23, 2022-04 - 震源域の物質から探る巨大地震とスロー地震の発生メカニズム
氏家 恒太郎
科学/92(10)/pp.893-897, 2022-10 - Spatial changes in inclusion band spacing as an indicator of temporal changes in slow slip and tremor recurrence intervals
Nishiyama Naoki; Ujiie Kohtaro; Kano Masayuki
Earth, Planets and Space/73(1), 2021-06 - Frictional melting and thermal fracturing recorded in pelagic sedimentary rocks of the Jurassic accretionary complex, central Japan
Ujiie Kohtaro; Ito Keisuke; Nagate Ayaka; Tabata Hiroki
EARTH AND PLANETARY SCIENCE LETTERS/554, 2021-01 - Evidence of Localized Failure Along Altered Basaltic Blocks in Tectonic Melange at the Updip Limit of the Seismogenic Zone: Implications for the Shallow Slow Earthquake Source
Phillips Noah John; Motohashi Ginta; Ujiie Kohtaro; Rowe ...
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS/21(7), 2020-07 - Deformation Structures From Splay and Decollement Faults in the Nankai Accretionary Prism, SW Japan (IODP NanTroSEIZE Expedition 316): Evidence for Slow and Rapid Slip in Fault Rocks
Fabbri O.; Goldsby D. L.; Chester F.; Karpoff A. M.; Morv...
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS/21(6), 2020-06 - Hydrous oceanic crust hosts megathrust creep at low shear stresses
Tulley Christopher J.; Fagereng Ake; Ujiie Kohtaro
SCIENCE ADVANCES/6(22), 2020-05 - Preservation of Permian-Triassic boundary section in the Jurassic accretionary complex of the Lake Hamana, Central Japan
Ding Wang; Ujiie Kohtaro; Sashida Katsuo
GEOLOGICAL JOURNAL/Epub, 2020-06 - Fault weakening caused by smectite swelling
Kameda Jun; Uno Masaoki; Conin Marianne; Ujiie Kohtaro; H...
Earth, Planets and Space/71(1), 2019-12 - Frictional Strengths of Subduction Thrust Rocks in the Region of Shallow Slow Earthquakes
Phillips Noah John; Belzer Ben; French Melodie E.; Rowe ...
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH/125(3), 2020-03 - Fluid overpressure in subduction plate boundary caused by mantle-derived fluids
Nishiyama Naoki; Sumino Hirochika; Ujiie Kohtaro
EARTH AND PLANETARY SCIENCE LETTERS/538, 2020-05 - more...
- Deformation mechanisms and fluid conditions of mélange shear zones associated with seamount subduction
- Books
- The State of Stress on the Fault Before, During, and After a Major Earthquake
Brodsky Emily E.; Mori James J.; Anderson Louise; Ches...
ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES, VOL 48, 2020/ANNUAL REVIEWS/pp.49-74, 2020 - 岩石の破壊と断層
氏家 恒太郎
地球科学の事典/朝倉書店, 2018-04 - 活動的縁辺部で見られる堆積物の変形構造、地震発生帯掘削の成果
氏家恒太郎
海洋底科学の基礎/共立出版, 2016-09 - 褶曲、小構造、メランジュほか
氏家 恒太郎
日本の地質構造100選/朝倉書店, 2012-05 - Deformation processes of off-scraped and underthrust sediments: The Shimanto Belt of Okinawa Island, Ryukyu Arc
氏家 恒太郎
1998-03
- The State of Stress on the Fault Before, During, and After a Major Earthquake
- Conference, etc.
- Duplex underplating, sediment dehydration and quartz vein mineralization in the deep tremor source region
Ujiie Kohtaro; Nishiyama Naoki; Yamamoto Hisaki; Yamas...
Japan Geoscience Union Meeting 2024/2024-05-26--2024-05-31 - Geological and experimental investigations of slow slip in the Japan Trench subduction zone
Ueda Mizuki; Ujiie Kohtaro; Takahashi Miki
Japan Geoscience Union Meeting 2024/2024-05-26--2024-05-31 - Geochemical evidence for fluid-rock interactions around the thermally controlled base of the subduction seismogenic zone
Ishikawa Tsuyoshi; Ujiie Kohtaro
Japan Geoscience Union Meeting 2024/2024-05-26--2024-05-31 - The role of ductile fractures in continental crustal faults from micro to macro scale
Thomas Yeo; Shigematsu Norio; Wallis Simon; Sumita Ta...
Japan Geoscience Union Meeting 2024/2024-05-26--2024-05-31 - Deformation mechanisms and rheology of chlorite-actinolite schist: Implications for slow slip near the mantle-wedge corner
Yamasaki Yuto; Ujiie Kohtaro; Shigematsu Norio
Japan Geoscience Union Meeting 2024/2024-05-26--2024-05-31 - Links between Hold Durations and Frictional Behaviors at Seismic Slip Rate within the Frontal Thrust Region at the Nankai Subduction Zone
Kou Szu-Ting; Nguyen Thi Trinh; Kuo Li-Wei; Ujiie Koh...
American Geophysical Union 2023/2023-12-11--2023-12-15 - Duplex Underplating, Sediment Dehydration and Quartz Vein Mineralization in the Deep Tremor Source Region
Ujiie Kohtaro; Nishiyama Naoki; Yamamoto Hisaki; Yamas...
American Geophysical Union 2023/2023-12-11--2023-12-15 - Depth-dependent Slow Earthquakes Controlled by Temperature Dependence of Brittle-ductile Transitional Rheology
Ando Ryosuke; Ujiie Kohtaro; Nishiyama Naoki; Mori Ya...
American Geophysical Union 2023/2023-12-11--2023-12-15 - Exploring the geologic fingerprints of deep slow earthquakes in subduction zones
Ujiie Kohtaro
School on Subduction Zone Processes/2023-10-09--2023-10-13 - 槇峰メランジュにおける石英脈濃集帯が放出する地震波のモデル化の試み
矢部 優; 大坪 誠; 氏家 恒太郎
日本地質学会第130年学術大会/2023-09-17--2023-09-19 - 東北沖地震震源断層の強度回復・応力蓄積過程の解明-IODP Exp.405 JTRACK及び広域観測による新たな研究プロジェクト提案-
小平 秀一; 氏家 恒太郎; 廣瀬 丈洋; 林 為人; 日野 亮太; 中村 恭之; 久保田 達矢
日本地質学会第130年学術大会/2023-09-17--2023-09-19 - 変形中のナノキャビティ形成をきっかけとするkmスケールの延性破壊
イヨ トーマス; 重松 紀生; ウォリス サイモン; 住田 達哉; 張 春傑; 氏家 恒太郎; 香取 拓馬; 宮...
日本地質学会第130年学術大会/2023-09-17--2023-09-19 - Deformation mechanisms and rheology of mélange shear zones associated with seamount subduction
Frank Madison; Ujiie Kohtaro; Motohashi Ginta; Nagaya ...
Water-Rock Interaction WRI-17/2023-08-17--2023-08-22 - Temporal variation of silica precipitation along seismogenic subduction zones
Saishu Hanae; Otsubo Makoto; Okamoto Atsushi; Ujiie K...
Water-Rock Interaction WRI-17/2023-08-17--2023-08-22 - Estimating pore fluid pressure from geometrical characteristics of extensional mineral veins
Otsubo Makoto; Ujiie Kohtaro; Miyakawa Ayumu
Water-Rock Interaction WRI-17/2023-08-17--2023-08-22 - Metasomatic actinolite enhances megathrust slip in the source region of deep slow slip
Nishiyama Naoki; Ujiie Kohtaro; Noro Kazuya; Mori Yas...
Water-Rock Interaction WRI-17/2023-08-17--2023-08-22 - Metasomatism and Megathrust Slip
Ujiie Kohtaro; Nishiyama Naoki; Shigematsu Norio; Yama...
Water-Rock Interaction WRI-17/2023-08-17--2023-08-22 - Depth-dependent slow earthquakes controlled by temperature dependence of brittle-ductile transitional rheology
Ando Ryosuke; Ujiie Kohtaro; Nishiyama Naoki; Mori Ya...
Japan Geoscience Union Meeting 2023/2023-05-21--2023-05-26 - Pore fluid overpressures estimated from geometric data of crack-seal extension veins in subduction mélange
Otsubo Makoto; Ujiie Kohtaro; Miyakawa Ayumu
Japan Geoscience Union Meeting 2023/2023-05-21--2023-05-26 - IODP Expedition 405, JTRACK: Tracking Tsunamigenic Slips Across and Along the Japan Trench
小平 秀一; 氏家 恒太郎; James Sample; Michael Strasser; James ...
Japan Geoscience Union Meeting 2023/2023-05-21--2023-05-26 - Albite metasomatism may control the downdip limit of the seismogenic megathrust
氏家 恒太郎; 重松 紀生
Japan Geoscience Union Meeting 2023/2023-05-21--2023-05-26 - Origin of fluid responsible for silica precipitation in source area of deep slow earthquakes
Yamamoto Hisaki; Sano Takashi; Ujiie Kohtaro
Japan Geoscience Union Meeting 2023/2023-05-21--2023-05-26 - Deformation mechanisms and rheology of mélange shear zones associated with seamount subduction
Frank Madison; Ujiie Kohtaro; Motohashi Ginta; Nagaya ...
Japan Geoscience Union Meeting 2023/2023-05-21--2023-05-26 - Origin of fluid responsible for silica precipitation in source area of deep slow earthquakes
Yamamoto Hisaki; Sano Takashi; Ujiie Kohtaro
Slow-to-Fast earthquake workshop in Taiwan/2023-03-13--2023-03-14 - Deformation mechanisms and rheology of mélange shear zones associated with seamount subduction
Frank Madison; Ujiie Kohtaro; Motohashi Ginta; Nagaya ...
Slow-to-Fast earthquake workshop in Taiwan/2023-03-13--2023-03-14 - more...
- Duplex underplating, sediment dehydration and quartz vein mineralization in the deep tremor source region
- Teaching
2024-04 -- 2024-07 Advanced Seminar in Earth Evolution Sciences IIa University of Tsukuba. 2024-10 -- 2024-12 Earth Evolution Sciences, Seminar IIb University of Tsukuba. 2024-10 -- 2024-12 Advanced Seminar in Earth Evolution Sciences IIb University of Tsukuba. 2024-04 -- 2024-07 Earth Evolution Sciences, Seminar IIa University of Tsukuba. 2024-10 -- 2025-02 Special Study in Earth Evolution Sciences Ib University of Tsukuba. 2024-04 -- 2024-07 Origin, Evolution, Dynamics and Resources of the Earth B University of Tsukuba. 2024-05 -- 2024-08 Earth Evolution Science 1 University of Tsukuba. 2024-04 -- 2024-07 Earth Evolution Sciences, Seminar Ia University of Tsukuba. 2024-04 -- 2024-08 Special Lecture in Earth Evolution Sciences Va University of Tsukuba. 2024-10 -- 2025-02 Special Seminar in Earth Evolution Sciences IIb University of Tsukuba. more... - Other educational activities
2022-02 -- 2022-02 第234回地震予知連絡会 地震予知連絡会 2015-11 -- 2015-11 県民大学講座「地球の変動:プレートテクトニクスとプルームテクトニクス」」 茨城県県南生涯学習センター 2011-12 -- 2011-12 高大連携 University of Tsukuba. - Talks
- 深海掘削して初めて分かった海溝型巨大地震・津波発生メカニズム
氏家 恒太郎
ライブ授業for茗溪学園中学校高等学校/2020-05-29--2020-05-29 - 断層の地質学的研究から読み解くプレート沈み込み帯地震発生の科学
氏家 恒太郎
地質の日オンライン講演会/2021-05-09--2021-05-09 - 「ちきゅう」による深海掘削で明らかになった東北沖地震・巨大津波発生のメカニズム
Ujiie Kohtaro
地震津波シンポジウム 東海・南海巨大地震を考えるin SHIMIZU/2017-03-25--2017-03-25 - プレート境界域で発生する地震のメカニズムについて
氏家 恒太郎
石灰石鉱業協会地質講演会/2015-07-17--2015-07-17 - 深海掘削で明らかになった巨大地震・津波発生のメカニズム
氏家 恒太郎
「ちきゅう」就航10周年記念シンポジウム/2015-11-12--2015-11-12 - 東北地方太平洋沖地震調査掘削(JFAST)の成果
氏家 恒太郎
ブルーアース2015/2015-03-19--2015-03-20 - 付加体中の断層から読み解く沈み込みプレート境界における地震発生過程
氏家 恒太郎
深田地質研究所60周年記念事業 深田研究助成講演会/2014-09-05--2014-09-05 - 東北地方太平洋沖地震掘削(JFAST)で明らかになった震源域プレート境界断層の特徴と摩擦特性
氏家 恒太郎
ショートコース「地すべり破砕帯の構造地質学」/2014-10-18--2014-10-18 - コア試料から分かった滑りのメカニズム
氏家 恒太郎
東北大学・海洋研究開発機構合同シンポジウム「ちきゅう」が解き明かした巨大地震のなぞ/2014-03-29--2014-03-29 - 「ちきゅう」による掘削調査からわかったプレート境界浅部巨大地震性滑りのメカニズム
氏家 恒太郎
公開シンポジウム「大震災津波のメカニズムと三陸の海の現在」/2014-03-09--2014-03-09 - 3.11あのとき深海で何が起こったか〜地震の根源を探る地球深部探査船ちきゅうのたび
氏家 恒太郎
東北大学サイエンスカフェ/2013-02-11--2013-02-11
- 深海掘削して初めて分かった海溝型巨大地震・津波発生メカニズム
- Professional activities
2020-05 -- 2026-05 J-DESC 理事 2011-03 -- 2012-02 JAPAN GEOSCIENCE UNION 日本地球惑星科学連合大会運営委員 2012-04 -- 2016-03 THE GEOLOGICAL SOCIETY OF JAPAN 日本地質学会行事委員 2011-01 -- 2012-05 文部科学省 深海掘削検討会 - University Management
2023-04 -- 2025-03 生命環境学群地球学類運営委員会 生命環境学群地球学類運営委員(入試担当) 2017-04 -- 2018-03 生命環境学群地球学類カリキュラム委員 委員長 2021-04 -- 2022-03 学生生活支援室 副室長 2020-04 -- 2021-03 学生生活支援室 委員 2016-04 -- 2017-03 生命環境学群FD委員会 委員長 2016-04 -- 2017-03 生命環境学群地球学類カリキュラム委員 副委員長 2016-04 -- 2018-03 地球学類運営委員会 委員 2016-04 -- 2018-03 生命環境学群運営委員会 委員 2016-04 -- 2018-03 生命環境学群長・学類長会議 委員 - Other activities
2017-07 -- 2017-10 国立科学博物館特別展「深海」Zone 3.深海と巨大地震 パネル・図録執筆、断層試料・実験撮影動画提供 2016-05 -- 2016-05 「ちきゅう」がせまる巨大地震と地下生命の謎(ニュートン)研究成果紹介 2015-10 -- 2015-10 プレスリリース「日本海溝沈み込み帯で発生したゆっくり地震を再現 —ゆっくり地震域は巨大地震発生域?—」 2014-12 -- 2014-12 東日本大震災における巨大津波の原因(物理科学月刊誌パリティ2014年12月号)研究成果紹介 2014-09 -- 2014-09 続・地球深部探査船「ちきゅう」が解き明かした東北沖地震の謎(河北新報社 科学の泉)研究成果紹介 2014-04 -- 2014-04 知っておきたい断層の話(学研子供の科学)取材協力・監修 2014-03 -- 2014-03 ここまで分かった巨大地震・巨大津波の謎(海と地球の情報誌 Blue Earth)研究成果掲載 2014-03 -- 2014-03 巨大地震 掘削で迫る(朝日新聞21面科学の扉)研究成果掲載 2014-03 -- 2014-03 3.11大津波を起こした断層の正体をとらえた!(月刊ジュニアエラ)取材協力・監修 2014-03 -- 2014-03 室内実験より決定された東北沖プレート境界断層の地震時低剪断応力(Science–サイエンス誌に載った日本人研究者)研究成果掲載 more...
(Last updated: 2024-11-28)