Observing partial melting of rocks by x-ray phase-contrast imaging

• Project/Area Number: 25800295
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Petrology/Mineralogy/Economic geology
• Research Institution: Hiroshima University
• Principal Investigator: SATO TOMOKO 広島大学, 理学研究科, 准教授 (80553106)
• Research Collaborator: Yashiro Wataru 東北大学, 多元物質科学研究所, 准教授 (10401233)
• Project Period (FY): 2013-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: X線位相イメージング / 小角散乱コントラスト / ビジビリティコントラスト

Outline of Final Research Achievements

This study aims to observe partial melting of rocks by x-ray phase-contrast computed tomography (CT) imaging. It is difficult to distinguish host minerals and partial melts by the x-ray absorption imaging, which is a non-destructive imaging method commonly used in various fields of research, industry, and medicine, because of the small difference in the absorption coefficient. X-ray phase-contrast imaging can distinguish them because the difference in the phase shift is larger. We have conducted x-ray CT imaging experiments of natural rock samples and obtained images of absorption, phase shift, and visibility contrasts. Grain boundaries of crystals are well observed in visibility images. It is suggested that using visibility images for in-situ observation of partial melting of rocks may be useful.

Research Products

• [Journal Article] Shock Compression and Melting of an Fe-Ni-Si Alloy: Implications for the Temperature Profile of the Earth's Core and the Heat Flux Across the Core-Mantle Boundary (2018)
  • Author(s): Zhang Youjun、Sekine Toshimori、Lin Jung-Fu、He Hongliang、Liu Fusheng、Zhang Mingjian、Sato Tomoko、Zhu Wenjun、Yu Yin
  • Journal Title: Journal of Geophysical Research: Solid Earth Volume: 123 Issue: 2 Pages: 1314-1327
  • DOI: 10.1002/2017jb014723
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] 放射光によるSiO2ガラスの構造と物性の高圧下その場観察 (2017)
  • Author(s): 佐藤友子,船守展正
  • Journal Title: セラミックス Volume: 52 Pages: 352-356
• [Journal Article] Dynamic fracture of tantalum under extreme tensile stress (2017)
  • Author(s): Bruno Albertazzi, Norimasa Ozaki, Vasily Zhakhovsky, Anatoly Faenov, et al.
  • Journal Title: Science advances Volume: 3 Issue: 6
  • DOI: 10.1126/sciadv.1602705
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Indirect Monitoring Shot-to-shot Shock Waves Strength Reproducibility during Pump-probe Experiments (2016)
  • Author(s): T. A. Pikuz, A. Ya. Faenov, N. Ozaki, N. J. Hartley, B. Albertazzi, T. Matsuoka, K. Takahashi, H. Habara, Y. Tange, S. Matsuyama, K. Yamauchi, R. Ochante, K. Sueda, O. Sakata, T. Sekine, T. Sato, Y. Umeda, Y. Inubushi, T. Yabuuchi, T. Togashi, T. Katayama, M. Yabashi, M. Harmand, G. Morard, M. Koenig, et al.
  • Journal Title: J. Appl. Phys. Volume: 120(3) Issue: 3 Pages: 035901-035901
  • DOI: 10.1063/1.4958796
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Stability of the liquid state of imidazolium-based ionic liquids under high pressure at room temperature (2015)
  • Author(s): Y. Yoshimura, M. Shigemi, M. Takaku, M. Yamamura, T. Takekiyo, H. Abe, N. Hamaya, D. Wakabayashi, K. Nishida, N. Funamori, T. Sato, and T. Kikegawa
  • Journal Title: J. Phys. Chem. B Volume: 119 Issue: 25 Pages: 8146-8153
  • DOI: 10.1021/acs.jpcb.5b03476
  • Peer Reviewed
• [Journal Article] Enhanced plasticity of silica glass at high pressure (2015)
  • Author(s): D. Wakabayashi, N. Funamori, and T. Sato
  • Journal Title: Physical Review B Volume: 91 Issue: 1 Pages: 014106-014106
  • DOI: 10.1103/physrevb.91.014106
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Muonium in stishovite: Implications for the possible existence of neutral atomic hydrogen in the Earth's deep mantle (2015)
  • Author(s): N. Funamori, K. M. Kojima, D. Wakabayashi, T. Sato, T. Taniguchi, N. Nishiyama, T. Irifune, D. Tomono, T. Matsuzaki, M. Miyazaki, M. Hiraishi, A. Koda, and R. Kadono
  • Journal Title: Scientific Reports Volume: 5 Issue: 1 Pages: 8437-8437
  • DOI: 10.1038/srep08437
  • Peer Reviewed / Open Access
• [Journal Article] 高圧力下におけるSiO2ガラスの振る舞い (2014)
  • Author(s): 佐藤友子
  • Journal Title: 高圧力の科学と技術 Volume: 24 Pages: 155-161
  • NAID: 130004447682
• [Journal Article] Crystal structures and stabilities of cristobalite-helium phases at high pressures (2014)
  • Author(s): M. Matsui, T. Sato, N. Funamori
  • Journal Title: American Mineralogist Volume: 99 Issue: 1 Pages: 184-189
  • DOI: 10.2138/am.2014.4637
  • Peer Reviewed
• [Journal Article] Equation of state for silicate melts : A comparison between static and shock compression (2014)
  • Author(s): D. Wakabayashi, N. Funamori, T. Sato, T. Sekine
  • Journal Title: Geophys. Res. Lett. Volume: 41 Issue: 1 Pages: 50-54
  • DOI: 10.1002/2013gl058328
  • Peer Reviewed
• [Journal Article] Differential strain and residual anisotropy in silica glass (2013)
  • Author(s): T. Sato, N. Funamori, T. Yagi
  • Journal Title: Journal of Applied Physics Volume: 114 Issue: 10 Pages: 103509-103509
  • DOI: 10.1063/1.4820263
  • Peer Reviewed
• [Presentation] Intermediate state of SiO2 glass during pressure-induced phase transformation (2018)
  • Author(s): Tomoko Sato
  • Organizer: Glass and Optical Materials Division 2018 Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] Seamless structural transformations of SiO2 glass under high pressure (2018)
  • Author(s): Daisuke Wakabayashi, Tomoko Sato and Nobumasa Funamori
  • Organizer: 2018 annual meeting of the International Commission on Glass
  • Int'l Joint Research / Invited
• [Presentation] 衝撃圧縮下その場X線回折による石英の一軸圧縮下相転移の探索 (2017)
  • Author(s): 佐藤友子，丹下慶範，瀬戸雄介，関根利守，尾崎典雅，西川豊人，松岡健之，兒玉了祐
  • Organizer: 第58回高圧討論会
• [Presentation] 衝撃圧縮された多結晶コランダムの時分割 XFEL その場観察 (2017)
  • Author(s): 丹下慶範 ・ 尾崎典雅 ・瀬戸雄介 ・ 佐藤友子 ・ 奥地拓生 ・ 松岡健之 ・ 高橋謙次郎 ・ 宮西宏併・
  • Organizer: 第58回高圧討論会
• [Presentation] レーザー衝撃圧縮 XFEL 実験における回折光学系技術と解析例 (2017)
  • Author(s): 瀬戸雄介 ・ 丹下慶範 ・ 佐藤友子 ・ 奥地拓生 ・ 尾崎典雅
  • Organizer: 第58回高圧討論会
• [Presentation] パワーレーザーとＸＦＥＬによるレーザー衝撃圧縮ダイナミクスのその場観測実験装置の開発 (2017)
  • Author(s): 高橋謙次郎 ・ 尾崎典雅 ・ 松岡健之 ・ 末田敬一 ・ 宮西宏併 ・ 梅田悠平 ・ HARTLEY Nicholas ・佐藤友子他
  • Organizer: 第58回高圧討論会
• [Presentation] In situ XRD observation of anomalous elastic response of quartz by XFEL (2016)
  • Author(s): T. Sato, T. Sekine, Y. Tange, N. Ozaki, T. Matsuoka, H. Habara, T. Kenjiro, B. Albertazzi, T. Yabuuchi, K. Tanaka, T. Ogawa, R. Kodama, T. Okuchi, Y. Seto, S. Matsuyama, K. Yamauchi, Y. Imubushi, T. Togashi, M. Yabashi
  • Organizer: The 31st International Congress on High-speed Imaging and Photonics
  • Place of Presentation: 大阪
  • Int'l Joint Research
• [Presentation] PFにおける開発的な研究とその将来：SiO2ガラスの高圧実験を例として (2016)
  • Author(s): 佐藤友子，若林大佑, 船守展正
  • Organizer: 第５７回高圧討論会
  • Place of Presentation: つくば
• [Presentation] XFELを用いた石英の異常弾性挙動のその場X線回折観察 (2015)
  • Author(s): 佐藤友子,関根利守,丹下慶範,尾崎典雅,羽原英明,高橋健次郎,Bruno ALBERTAZZI,籔内俊毅,田中和夫,小川剛史,兒玉了祐,奥地拓生,瀬戸雄介,松山智至,山内和人,犬伏雄一,富樫格,矢橋牧名
  • Organizer: 第56回高圧討論会
  • Place of Presentation: アステールプラザ（広島県広島市）
  • Year and Date: 2015-11-12
• [Presentation] PF BL-18C における高圧下その場小角 X 線散乱測定 (2015)
  • Author(s): 佐藤友子 ，若林大佑，重岡優希，西田圭佑，亀卦川卓美，船守展正
  • Organizer: 第56回高圧討論会
  • Place of Presentation: アステールプラザ（広島県広島市）
  • Year and Date: 2015-11-10
• [Presentation] X-ray diffraction observation of shock-compressed quartz (2015)
  • Author(s): Tomoko SATO, Toshimori SEKINE, Yoshinori TANGE, Norimasa OZAKI, Takeshi MATSUOKA, Hideaki HABARA, Toshinori YABUUCHI, Kazuo TANAKA, Tsuyoshi OGAWA, Ryosuke KODAMA, Taku OKUCHI, Yusuke SETO, Yuichi INUBUSHI, Tadashi TOGASHI, and Makina YABASHI
  • Organizer: International Workshop on Warm Dense Matter
  • Place of Presentation: KURASHIKI IVY SQUARE（岡山県倉敷市）
  • Year and Date: 2015-06-09
  • Int'l Joint Research
• [Presentation] BL-18Cにおける高圧下その場X線小角散乱測定 (2015)
  • Author(s): 佐藤友子、若林大佑、西田圭佑、亀卦川卓美、船守展正
  • Organizer: 第3回物構研サイエンスフェスタ
  • Place of Presentation: つくば国際会議場（茨城県つくば市竹園2-20-3）
  • Year and Date: 2015-03-17
• [Presentation] 高圧下その場X線小角散乱による相転移中間状態の観察 (2014)
  • Author(s): 佐藤友子、若林大佑、西田圭佑、横井雄行、亀卦川卓美、船守展正
  • Organizer: 第55回高圧討論会
  • Place of Presentation: 徳島大学常三島キャンパス共通講義棟4～6F（徳島市南常三島町２－１）
  • Year and Date: 2014-11-23
• [Presentation] XFELを用いた石英の高歪速度圧縮下その場回折測定 (2014)
  • Author(s): 佐藤友子、関根利守、丹下慶範、尾崎典雅、松岡健之、近藤良彦、羽原英明、籔内俊毅、田中和夫、佐藤友哉、池谷正太郎、喜田美佳、小川剛史、兒玉了祐、奥地拓生、瀬戸雄介、 犬伏雄一、富樫格、矢橋牧名
  • Organizer: 第55回高圧討論会
  • Place of Presentation: 徳島大学常三島キャンパス共通講義棟4～6F（徳島市南常三島町２－１）
  • Year and Date: 2014-11-22
• [Presentation] 岩石のX線位相イメージング (2013)
  • Author(s): 佐藤友子
  • Organizer: 第54回高圧討論会
  • Place of Presentation: 朱鷺メッセ、新潟市
• [Presentation] Various interesting high-pressure behaviour of SiO2 glass related to the intermediate-range structure (2013)
  • Author(s): T. Sato
  • Organizer: 7 th International Discussion Meeting on Relaxations in Complex Systems
  • Place of Presentation: Universitat Politecnica de Catalunya, Barcelona
  • Invited
• [Presentation] 多孔性シリカの圧縮挙動 (2013)
  • Author(s): 宮崎慶統
  • Organizer: 第54回高圧討論会
  • Place of Presentation: 朱鷺メッセ、新潟市