Yu Nishihara

Profile Information

Affiliation: Professor, Ehime University

Degree: Doctor of Science(Tokyo Institute of Technology)

Researcher number: 10397036
J-GLOBAL ID: 200901048852548933
researchmap Member ID: 5000085861

External link: http://earth.sci.ehime-u.ac.jp/~yunishi/index-e.html

Research Interests

Research Areas

Natural sciences / Solid earth science /

Research History

Oct, 2020 - Present

Professor, Geodynamics Research Center, Ehime University
Apr, 2013 - Sep, 2020

Geodynamics Research Center, Ehime University
Nov, 2008 - Mar, 2013

Senior Research Fellow Center, Ehime University
Nov, 2004 - Oct, 2008

東京工業大学大学院地球惑星科学専攻 21世紀COE助手・助教
Apr, 2004 - Oct, 2004

The Institute for Solid State Physics, The University of Tokyo
Apr, 2003 - Mar, 2004

エール大学地質地球物理学科ポストドクター

Education

Apr, 1998 - Mar, 2003

地球惑星科学専攻, 理学系研究科, 東京工業大学大学院
Apr, 1994 - Mar, 1998

Department of Earth and Planetary Sciences, School of Science, Tokyo Institute of Technology

Committee Memberships

2022 - Present

高圧力の科学と技術, 副編集委員長
Sep, 2019 - Present

JpGU program, Japan Association of Mineralogical Sciences
2013 - 2015

会計幹事, 日本高圧力学会
2012 - 2015

編集委員, 高圧力の科学と技術
2012 - 2013

地球惑星科学研究会代表, SPring-8ユーザ共同体（SPRUC）

Awards

2010

奨励賞, マントル深部の流動特性と弾性の実験的研究, 日本高圧力学会

西原遊

Papers

Rheology of hexagonal close‐packed(hcp) iron

Yu Nishihara, Shunta Doi, Noriyoshi Tsujino, Daisuke Yamazaki, Kyoko N. Matsukage, Yumiko Tsubokawa, Takashi Yoshino, Andrew R. Thomson, Yuji Higo, Yoshinori Tange

Journal of Geophysical Research: Solid Earth, May 30, 2023 Peer-reviewedLead authorCorresponding author
Preliminary results from the new deformation multi-anvil press at the Photon Factory: insight into the creep strength of calcium silicate perovskite

Andrew R. Thomson, Yu Nishihara, Daisuke Yamazaki, Noriyoshi Tsujino, Simon A. Hunt, Yumiko Tsubokawa, Kyoko N. Matsukage, Tomoaki Kubo, David P. Dobson

Core-Mantle Coevolution: A Multidisciplinary Approach, American Geophysical Union, 59-73, May, 2023 Peer-reviewed
Development of lattice‐preferred orientations of MgO periclase from strain rate controlled shear deformation experiments under pressure up to 120 GPa

Yohan Park, Shintaro Azuma, Keishi Okazaki, Kentaro Uesugi, Masahiro Yasutake, Yu Nishihara, Ryuichi Nomura

Geophysical Research Letters, 49(21), Nov 16, 2022 Peer-reviewed
Viscosity of bridgmanite determined by in situ stress and strain measurements in uniaxial deformation experiments

Noriyoshi Tsujino, Daisuke Yamazaki, Yu Nishihara, Takashi Yoshino, Yuji Higo, Yoshinori Tange

Science Advances, 8(13), Apr, 2022 Peer-reviewed
Low-spin ferric iron in primordial bridgmanite crystallized from a deep magma ocean

Yoshiyuki Okuda, Kenji Ohta, Yu Nishihara, Naohisa Hirao, Tatsuya Wakamatsu, Sho Suehiro, Saori I. Kawaguchi, Yasuo Ohishi

Scientific Reports, 11(1), Sep, 2021 Peer-reviewed
Pressure effect on the electromotive force of the type R thermocouple

Yu Nishihara, Shunta Doi, Hideitsu Hino, Yuji Higo, Yoshinori Tange

High Pressure Research, 40(2) 205-218, May, 2020 Peer-reviewedLead authorCorresponding author
Effect of pressure on temperature measurements using WRe thermocouple and its geophysical impact

Yu Nishihara, Shunta Doi, Sho Kakizawa, Yuji Higo, Yoshinori Tange

Physics of the Earth and Planetary Interiors, 298 106348, Jan, 2020 Peer-reviewed
Studies of Deep Earth Rheology Based on High-Pressure Deformation Experiments Using D111-Type Apparatus

Yu NISHIHARA, Noriyoshi TSUJINO, Tomoaki KUBO, Daisuke YAMAZAKI, Shunta DOI, Masahiro IMAMURA, Takashi YOSHINO

The Review of High Pressure Science and Technology, 30(2) 78-84, 2020 Peer-reviewedInvitedLead authorCorresponding author
Stability of hydrous phases of Al-rich phase D and Al-rich phase H in deep subducted oceanic crust

Xingcheng Liu, Kyoko N, Matsukage, Yu Nishihara, Toshihiro Suzuki, Eiichi Takahashi

American Mineralogist, 104(1) 64-72, Jan, 2019 Peer-reviewed
An Experimental Examination of Thermal Conductivity Anisotropy in hcp Iron

Kenji Ohta, Yu Nishihara, Yuki Sato, Kei Hirose, Takashi Yagi, Saori Kawaguchi, Naohisa Hirao, Yasuo Ohishi

FRONTIERS IN EARTH SCIENCE, 6 176, Nov, 2018 Peer-reviewed
Deformation-induced crystallographic-preferred orientation of hcp-iron: An experimental study using a deformation-DIA apparatus

Yu Nishihara, Tomohiro Ohuchi, Takaaki Kawazoe, Yusuke Seto, Genta Maruyama, Yuji Higo, Ken ichi Funakoshi, Yoshinori Tange, Tetsuo Irifune

Earth and Planetary Science Letters, 490 151-160, May 15, 2018 Peer-reviewed
Morphological stability of hydrous liquid droplets at grain boundaries of eclogite minerals in the deep upper mantle

Kyoko N. Matsukage, Mika Hashimoto, Yu Nishihara

JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES, 112(6) 346-358, Dec, 2017 Peer-reviewed
Mantle dynamics inferred from the crystallographic preferred orientation of bridgmanite

Noriyoshi Tsujino, Yu Nishihara, Daisuke Yamazaki, Yusuke Seto, Yuji Higo, Eiichi Takahashi

NATURE, 539(7627) 81-+, Nov, 2016 Peer-reviewed
Creep strength of ringwoodite measured at pressure-temperature conditions of the lower part of the mantle transition zone using a deformation-DIA apparatus

Takaaki Kawazoe, Yu Nishihara, Tomohiro Ohuchi, Nobuyoshi Miyajima, Genta Maruyama, Yuji Higo, Ken-ichi Funakoshi, Tetsuo Irifune

EARTH AND PLANETARY SCIENCE LETTERS, 454 10-19, Nov, 2016 Peer-reviewed
Growth kinetics of forsterite reaction rims at high-pressure

Yu Nishihara, Genta Maruyama, Masayuki Nishi

PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 257 220-229, Aug, 2016 Peer-reviewed
Iron-titanium oxyhydroxides as water carriers in the Earth's deep mantle

Yu Nishihara, Kyoko N. Matsukage

AMERICAN MINERALOGIST, 101(3-4) 919-927, Mar, 2016 Peer-reviewed
Determination of pressure effect on thermocouple electromotive force using multi-anvil apparatus

Yu Nishihara, Kazuki Fuke, Yoshinori Tange, Yuji Higo

HIGH PRESSURE RESEARCH, 36(2) 121-139, 2016 Peer-reviewed
Elastic wave velocity anomalies of anorthite in a subducting plate: In situ experiments

Kyoko N. Matsukage, Yu Nishihara, Fumiya Noritake, Katsuyuki Kawamura, Noriyoshi Tsujino, Moe Sakurai, Yuji Higo, Junichi Nakajima, Akira Hasegawa, Elichi Takahashi

AMERICAN MINERALOGIST, 100(8-9) 1856-1865, Aug, 2015 Peer-reviewed
In situ observation of crystallographic preferred orientation of deforming olivine at high pressure and high temperature

Tomohiro Ohuchi, Yu Nishihara, Yusuke Seto, Takaaki Kawazoe, Masayuki Nishi, Genta Maruyama, Mika Hashimoto, Yuji Higo, Ken-ichi Funakoshi, Akio Suzuki …

PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 243 1-21, Jun, 2015 Peer-reviewed
Rheology of fine-grained forsterite aggregate at deep upper mantle conditions

Yu Nishihara, Tomohiro Ohuchi, Takaaki Kawazoe, Dirk Spengler, Miki Tasaka, Takumi Kikegawa, Akio Suzuki, Eiji Ohtani

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 119(1) 253-273, Jan, 2014 Peer-reviewed

Misc.

Current status and future plan of deformation and fracture experiments at SPring-8/BL04B1

肥後祐司, 大内智博, 西原遊, 辻野典秀

月刊地球, 44(1), 2022
Rheology of hexagonal close-packed iron studied by high-pressure deformation experiments using D111-type apparatus

西原遊, 土居峻太, 辻野典秀, 山崎大輔

量子ビームサイエンスフェスタ(Web), 2019, 2020
Rheology of hexagonal-close packed (hcp) iron

西原遊, 土居峻太, 辻野典秀, 山崎大輔

KEK Progress Report (Web), (2020-6), 2020
High-Pressure and- Temperature Deformation Experiments using D111-type apparatus: Towards Understanding of Rheology of Deep Earth Materials

西原遊, 辻野典秀, 久保友明, 山崎大輔, 土居峻太, 今村公裕, 芳野極

Photon Factory News, 38(3), 2020
六方最密構造(hcp)鉄のレオロジー

西原遊, 土居峻太, 辻野典秀, 山崎大輔, 肥後祐司

日本地球惑星科学連合大会予稿集(Web), 2019, 2019
Olivine-Spinel transition under uniaxial deformation-the condition of shear instability

森悠一郎, 久保友明, 今村公裕, 山内幸子, 小泉早苗, 西原遊, 鈴木昭夫, 肥後祐司, 丹下慶範

日本鉱物科学会年会講演要旨(Web), 2019, 2019
Olivine-spinel transformation under shear deformation: Conditions for transformation-induced weakening

久保友明, 森山一哉, 森悠一郎, 今村公裕, 小泉早苗, 西原遊, 鈴木昭夫, 肥後祐司, 丹下慶範

日本鉱物科学会年会講演要旨(Web), 2019, 2019
高圧変形実験装置で解き明かす地球深部のレオロジー

野村龍一, 東真太郎, 西原遊, 上杉健太朗, 入舩徹男

Ｘ線結像光学ニューズレター, 48 1-4, Dec, 2018 Peer-reviewedInvited
D111を用いたブリッジマナイトの変形実験

辻野典秀, 山崎大輔, 西原遊

高圧討論会講演要旨集, 59th, 2018
WRe熱電対起電力への圧力効果とその地球深部科学への影響

西原遊, 土居峻太, 柿澤翔, 肥後祐司, 丹下慶範, 入舩徹男

高圧討論会講演要旨集, 58th 120, Oct 25, 2017
hcp鉄の熱伝導率異方性の測定

太田健二, 佐藤雄輝, 西原遊, 八木貴志, 廣瀬敬, 河口沙織, 平尾直久, 大石泰生

高圧討論会講演要旨集, 58th, 2017
KEKでの大容量プレスを用いた高圧変形実験

西原遊, 久保友明, 芳野極, 大内智博, 山崎大輔, 鈴木昭夫

高圧討論会講演要旨集, 57th 179, Oct 12, 2016
高圧変形その場観察実験によるhcp金属の格子選択配向の研究

西原遊, 大内智博, 川添貴章, 丸山玄太, 瀬戸雄介, 肥後祐司, 舟越賢一, 丹下慶範

日本地球惑星科学連合大会予稿集(Web), 2016, 2016
23GPaまでの高温高圧その場応力-歪同時測定技術の開発

辻野典秀, 山崎大輔, 芳野極, 米田明, 櫻井萌, 西原遊, 肥後祐司

高圧討論会講演要旨集, 55th, 2014
Dislocation structure around fluid inclusions in olivine and orthopyroxene

YAMAMOTO J., OHFUJI H., ISHIBASHI H., YOSHIOKA T., NISHIHARA Y., OHUCHI T.

2013 54-54, Sep 5, 2013
Creep behaviors during the olivine-spinel transformation in fayalite

DOI N., KUBO T., KATO T., NISHIHARA Y., HIGO Y., FUNAKOSHI K.

2013 129-129, Sep 5, 2013
変形実験による(Mg,Fe)SiO₃-ペロブスカイトの結晶選択配向

辻野典秀, 西原遊, 山崎大輔, 瀬戸雄介, 高橋栄一

高圧討論会講演要旨集, 54th, 2013
カンラン石の高圧下でのレオロジー

西原遊, 大内智博, 川添貴章, SPENGLER Dirk, 田阪美樹, 平賀岳彦, 白石令, 鈴木昭夫, 亀卦川卓美, 大谷栄治

物構研サイエンスフェスタ要旨集, 1st 77, 2013
Growth of forsterite reaction rim at high pressure

MARUYAMA Genta, NISHIHARA Yu

2012 130-130, Sep 15, 2012
Viscosity Heterogeneity at the Upper Part of the Mantle Transition Zone Induced by Hydrous Weakening of Wadsleyite

KAWAZOE Takaaki, NISHIHARA Yu, OHUCHI Tomohiro, NISHI Masayuki, MARUYAMA Genta, FUJINO Kiyoshi, HIGO Yuji, FUNAKOSHI Ken-ichi, IRIFUNE Tetsuo

2012 128-128, Sep 15, 2012

Professional Memberships

Research Projects

Rheology in the Earth's inner core studied by high-pressure deformation experiments

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A), Grant-in-Aid for Scientific Research (A), Japan Society for the Promotion of Science, Apr, 2019 - Mar, 2024
稍深発地震とスロースリップに対する超臨界水の効果：放射光その場観察実験による検証

科学研究費助成事業基盤研究(A), 基盤研究(A), 日本学術振興会, Apr, 2019 - Mar, 2023

大内智博, 西原遊, 雷興林, 河野義生
Development of innovative high-pressure deformation technology toward understanding complicated seismic structure and dynamics of Earth's inner core

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A), Grant-in-Aid for Scientific Research (A), Japan Society for the Promotion of Science, Apr, 2019 - Mar, 2023
核-マントル物質の動的挙動

科学研究費補助金新学術領域研究（研究領域提案型）, 日本学術振興会, 2015 - 2019

芳野極
高圧変形実験で探る地球中心核の異方性

科学研究費補助金基盤研究(B), 日本学術振興会, 2015 - 2018

西原遊
マントルの水マッピング：高温高圧下の地震波減衰特性と電気伝導度からの制約

科学研究費補助金基盤研究(A), 日本学術振興会, 2012 - 2015

芳野極
マントル660km不連続のレオロジー的構造

科学研究費補助金基盤研究(B), 日本学術振興会, 2010 - 2013

西原遊
Deformation of olivine under Earth's upper mantle conditions and its implications for directions of the upper mantle flow

Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, 2011 - 2012

OHUCHI Tomohiro, NISHIHARA Yu, KAWAZOE Takaaki
Behavior ofFe-bearing materials under very high pressure and mineralogy of the lowermost mantle and the inner core

Grants-in-Aid for Scientific Research, Grant-in-Aid for Specially Promoted Research, Japan Society for the Promotion of Science, 2008 - 2012

IRIFUNE Tetsuo, TSUCHIYA Taku, OHFUJI Hiroaki, TANGE Yoshinori, KUWAYAMA Yasuhiro, HIGO Yuji, USUI Yusuke, NISHIYAMA Norimasa, ISHIKAWA Takahiro, USUI Yusuke, MATTHEW L Whitaker, NISHIHARA Yu, KUNIMOTO Takehiro
Viscosity of the mantle transition zone investigated by in situ deformation experiments on wadsleyite

Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, 2010 - 2011

KAWAZOE Takaaki, NISHIHARA Yu, OHUCHI Tomohiro, HIGO Yuji, NISHI Masayuki
メージャライト、リングウッダイト粘性コントラストの解明

科学研究費補助金若手研究(B), 日本学術振興会, 2009 - 2010

西原遊
地球内部進化に果たすマグマの役割

科学研究費補助金基盤研究(A), 日本学術振興会, 2009

高橋栄一
Experimental study on the formation of terrestrial planets

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), Japan Society for the Promotion of Science, 2006 - 2008

TAKAHASHI Eiichi, NISHIHARA Yu, SATO Kei, SEKINE Toshimori
高圧X線その場観察による下部マントルの流動特性の研究

科学研究費補助金若手研究(B), 日本学術振興会, 2006 - 2008

西原遊
高圧X線その場観察による下部マントルの流動特性の研究

科学研究費補助金特別研究員奨励費 (PD), 日本学術振興会, 2005

西原遊
マントル670km不連続面についての実験岩石学的研究

科学研究費補助金特別研究員奨励費 (DC1), 日本学術振興会, 2000 - 2003

西原遊
Rheological property of earth and planetary material at very high-presures

The Other Research Programs, 2003

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