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境 毅サカイ タケシ

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地球深部ダイナミクス研究センター
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Last Updated :2018/10/19

研究者基本情報

基本情報

    科研費研究者番号:90451616

学位

  • 博士(理学)

所属学協会

  • アメリカ地球物理学連合
  • 日本惑星科学会
  • 日本鉱物科学会
  • 日本高圧力学会
  • 日本地球惑星科学連合

研究活動情報

研究分野

  • 固体地球惑星物理学

研究キーワード

    状態方程式, ダイヤモンドアンビルセル, 超高圧地球科学

論文

  • High pressure generation using double-stage diamond anvil technique: problems and equations of state of rhenium
    Sakai Takeshi, Yagi Takehiko, Irifune Tetsuo, Kadobayashi Hirokazu, Hirao Naohisa, Kunimoto Takehiro, Ohfuji Hiroaki, Kawaguchi-Imada Saori, Ohishi Yasuo, Tateno Shigehiko, Hirose Kei, HIGH PRESSURE RESEARCH, 38, (2) 107 - 119,   2018年
  • Phase Relations in the System MgSiO3-Al2O3 up to 2300K at Lower Mantle Pressures
    Liu Zhaodong, Nishi Masayuki, Ishii Takayuki, Fei Hongzhan, Miyajima Nobuyoshi, Ballaran Tiziana Boffa, Ohfuji Hiroaki, Sakai Takeshi, Wang Lin, Shcheka Svyatoslav, Arimoto Takeshi, Tange Yoshinori, Higo Yuji, Irifune Tetsuo, Katsura Tomoo, JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 122, (10) 7775 - 7788,   2017年10月
  • Intermediate-depth earthquakes linked to localized heating in dunite and harzburgite
    Ohuchi Tomohiro, Lei Xinglin, Ohfuji Hiroaki, Higo Yuji, Tange Yoshinori, Sakai Takeshi, Fujino Kiyoshi, Irifune Tetsuo, NATURE GEOSCIENCE, 10, (10) 771 - +,   2017年10月
  • Experimental and theoretical thermal equations of state of MgSiO3 post-perovskite at multi-megabar pressures
    Sakai Takeshi, Dekura Haruhiko, Hirao Naohisa, SCIENTIFIC REPORTS, 6,   2016年03月07日
  • High-pressure generation using double stage micro-paired diamond anvils shaped by focused ion beam
    Sakai Takeshi, Yagi Takehiko, Ohfuji Hiroaki, Irifune Tetsuo, Ohishi Yasuo, Hirao Naohisa, Suzuki Yuya, Kuroda Yasushi, Asakawa Takayuki, Kanemura Takashi, REVIEW OF SCIENTIFIC INSTRUMENTS, 86, (3) ,   2015年03月
  • Stability of a hydrous delta-phase, AlOOH-MgSiO2(OH)(2), and a mechanism for water transport into the base of lower mantle
    Ohira Itaru, Ohtani Eiji, Sakai Takeshi, Miyahara Masaaki, Hirao Naohisa, Ohishi Yasuo, Nishijima Masahiko, EARTH AND PLANETARY SCIENCE LETTERS, 401, 12 - 17,   2014年09月01日
  • The spin state of iron in Fe3+-bearing Mg-perovskite and its crystal chemistry at high pressure
    Mashino Izumi, Ohtani Eiji, Hirao Naohisa, Mitsui Takaya, Masuda Ryo, Seto Makoto, Sakai Takeshi, Takahashi Suguru, Nakano Satoshi, AMERICAN MINERALOGIST, 99, (8-9) 1555 - 1561,   2014年08月
  • Discovery of coesite and stishovite in eucrite
    Miyahara Masaaki, Ohtani Eiji, Yamaguchi Akira, Ozawa Shin, Sakai Takeshi, Hirao Naohisa, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 111, (30) 10939 - 10942,   2014年07月29日
  • Equation of state of pure iron and Fe0.9Ni0.1 alloy up to 3 Mbar
    Sakai Takeshi, Takahashi Suguru, Nishitani Naoya, Mashino Izumi, Ohtani Eiji, Hirao Naohisa, PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 228, 114 - 126,   2014年03月
  • Equation of state of Fe3S at room temperature up to 2 megabars
    Kamada Seiji, Ohtani Eiji, Terasaki Hidenori, Sakai Takeshi, Takahashi Suguru, Hirao Naohisa, Ohishi Yasuo, PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 228, 106 - 113,   2014年03月
  • The sound velocity measurements of Fe3S
    Kamada Seiji, Ohtani Eiji, Fukui Hiroshi, Sakai Takeshi, Terasaki Hidenori, Takahashi Suguru, Shibazaki Yuki, Tsutsui Satoshi, Baron Alfred Q. R., Hirao Naohisa, Ohishi Yasuo, AMERICAN MINERALOGIST, 99, (1) 98 - 101,   2014年01月
  • A compact system for generating extreme pressures and temperatures: An application of laser-heated diamond anvil cell to inelastic X-ray scattering
    Fukui Hiroshi, Sakai Takeshi, Sakamaki Tatsuya, Kamada Seiji, Takahashi Suguru, Ohtani Eiji, Baron Alfred Q. R., REVIEW OF SCIENTIFIC INSTRUMENTS, 84, (11) ,   2013年11月
  • Sound velocity of hexagonal close-packed iron up to core pressures
    Ohtani Eiji, Shibazaki Yuki, Sakai Takeshi, Mibe Kenji, Fukui Hiroshi, Kamada Seiji, Sakamaki Tatsuya, Seto Yusuke, Tsutsui Satoshi, Baron Alfred Q. R., GEOPHYSICAL RESEARCH LETTERS, 40, (19) 5089 - 5094,   2013年10月16日
  • Jadeite formation in shocked ordinary chondrites
    Miyahara Masaaki, Ozawa Shin, Ohtani Eiji, Kimura Makoto, Kubo Tomoaki, Sakai Takeshi, Nagase Toshiro, Nishijima Masahiko, Hirao Naohisa, EARTH AND PLANETARY SCIENCE LETTERS, 373, 102 - 108,   2013年07月01日
  • Discovery of seifertite in a shocked lunar meteorite
    Miyahara Masaaki, Kaneko Shohei, Ohtani Eiji, Sakai Takeshi, Nagase Toshiro, Kayama Masahiro, Nishido Hirotsugu, Hirao Naohisa, NATURE COMMUNICATIONS, 4,   2013年04月
  • Melting relationships in the Fe-Fe3S system up to the outer core conditions
    Kamada Seiji, Ohtani Eiji, Terasaki Hidenori, Sakai Takeshi, Miyahara Masaaki, Ohishi Yasuo, Hirao Naohisa, EARTH AND PLANETARY SCIENCE LETTERS, 359, 26 - 33,   2012年12月15日
  • Stability of Fe-Ni hydride after the reaction between Fe-Ni alloy and hydrous phase (delta-AlOOH) up to 1.2 Mbar: Possibility of H contribution to the core density deficit
    Terasaki Hidenori, Ohtani Eiji, Sakai Takeshi, Kamada Seiji, Asanuma Hidetoshi, Shibazaki Yuki, Hirao Naohisa, Sata Nagayoshi, Ohishi Yasuo, Sakamaki Tatsuya, Suzuki Akio, Funakoshi Ken-ichi, PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 194, 18 - 24,   2012年03月
  • Compression of Fe88.1Ni9.1S2.8 alloy up to the pressure of Earth's inner core
    Sakai Takeshi, Ohtani Eiji, Kamada Seiji, Terasaki Hidenori, Hirao Naohisa, JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 117,   2012年02月21日
  • Sound velocity measurements in dhcp-FeH up to 70 GPa with inelastic X-ray scattering: Implications for the composition of the Earth's core
    Shibazaki Yuki, Ohtani Eiji, Fukui Hiroshi, Sakai Takeshi, Kamada Seiji, Ishikawa Daisuke, Tsutsui Satoshi, Baron Alfred Q. R., Nishitani Naoya, Hirao Naohisa, Takemura Kenichi, EARTH AND PLANETARY SCIENCE LETTERS, 313, 79 - 85,   2012年01月01日
  • Static compression of Fe0.83Ni0.09Si0.08 alloy to 374 GPa and Fe0.93Si0.07 alloy to 252 GPa: Implications for the Earth's inner core
    Asanuma Hidetoshi, Ohtani Eiji, Sakai Takeshi, Terasaki Hidenori, Kamada Seiji, Hirao Naohisa, Ohishi Yasuo, EARTH AND PLANETARY SCIENCE LETTERS, 310, (1-2) 113 - 118,   2011年10月01日
  • Phase stability and compression study of (Fe-0.89,Ni-0.11)(3)S up to pressure of the Earth's core
    Sakai Takeshi, Ohtani Eiji, Terasaki Hidenori, Kamada Seiji, Hirao Naohisa, Miyahara Masaaki, Nishijima Masahiko, AMERICAN MINERALOGIST, 96, (10) 1490 - 1494,   2011年10月
  • Stability field of the hcp-structure for Fe, Fe-Ni, and Fe-Ni-Si alloys up to 3 Mbar
    Sakai Takeshi, Ohtani Eiji, Hirao Naohisa, Ohishi Yasuo, GEOPHYSICAL RESEARCH LETTERS, 38,   2011年05月03日
  • Equation of state of the NaCl-B2 phase up to 304 GPa
    Sakai Takeshi, Ohtani Eiji, Hirao Naohisa, Ohishi Yasuo, JOURNAL OF APPLIED PHYSICS, 109, (8) ,   2011年04月15日
  • Natural dissociation of olivine to (Mg,Fe)SiO3 perovskite and magnesiowustite in a shocked Martian meteorite
    Miyahara Masaaki, Ohtani Eiji, Ozawa Shin, Kimura Makoto, El Goresy Ahmed, Sakai Takeshi, Nagase Toshiro, Hiraga Kenji, Hirao Naohisa, Ohishi Yasuo, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 108, (15) 5999 - 6003,   2011年04月12日
  • Fe-Mg partitioning between post-perovskite and ferropericlase in the lowermost mantle
    Sakai Takeshi, Ohtani Eiji, Terasaki Hidenori, Miyahara Masaaki, Nishijima Masahiko, Hirao Naohisa, Ohishi Yasuo, Sata Nagayoshi, PHYSICS AND CHEMISTRY OF MINERALS, 37, (7) 487 - 496,   2010年07月
  • Melting of iron-silicon alloy up to the core-mantle boundary pressure: implications to the thermal structure of the Earth's core
    Asanuma Hidetoshi, Ohtani Eiji, Sakai Takeshi, Terasaki Hidenori, Kamada Seiji, Kondo Tadashi, Kikegawa Takumi, PHYSICS AND CHEMISTRY OF MINERALS, 37, (6) 353 - 359,   2010年06月
  • Phase relationships of the Fe-FeS system in conditions up to the Earth's outer core
    Kamada Seiji, Terasaki Hidenori, Ohtani Eiji, Sakai Takeshi, Kikegawa Takumi, Ohishi Yasuo, Hirao Naohisa, Sata Nagayoshi, Kondo Tadashi, EARTH AND PLANETARY SCIENCE LETTERS, 294, (1-2) 94 - 100,   2010年05月15日
  • Partitioning of oxygen between the Earth's mantle and core
    Frost Daniel J., Asahara Yuki, Rubie David C., Miyajima Nobuyoshi, Dubrovinsky Leonid S., Holzapfel Christian, Ohtani Eiji, Miyahara Masaaki, Sakai Takeshi, JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 115,   2010年02月10日
  • Fe-Mg partitioning between perovskite and ferropericlase in the lower mantle
    Sakai Takeshi, Ohtani Eiji, Terasaki Hidenori, Sawada Naoki, Kobayashi Yusuke, Miyahara Masaaki, Nishijima Masahiko, Hirao Naohisa, Ohishi Yasuo, Kikegawa Takumi, AMERICAN MINERALOGIST, 94, (7) 921 - 925,   2009年07月
  • Hydrogen incorporation to the Earth's core
    Terasaki Hidenori, Ohtani Eiji, Sakai Takeshi, Kamada Seiji, Shibazaki Yuki, Asanuma Hidetoshi, Naohisa Hirao, Ohishi Yasuo, Sata Nagayoshi, Sakamaki Tatsuya, Suzuki Akio, Funakoshi Ken-ichi, GEOCHIMICA ET COSMOCHIMICA ACTA, 73, (13) ,   2009年06月
  • Recent advances in the study of mantle phase transitions
    Ohtani Eiji, Sakai Takeshi, PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 170, (3-4) 240 - 247,   2008年11月
  • Phase relations of Fe-Si alloy up to core conditions: Implications for the Earth inner core
    Asanuma Hidetoshi, Ohtani Eiji, Sakai Takeshi, Terasaki Hidenori, Kamada Seiji, Hirao Naohisa, Sata Nagayoshi, Ohishi Yasuo, GEOPHYSICAL RESEARCH LETTERS, 35, (12) ,   2008年06月25日
  • Application of FIB system to ultra-high-pressure Earth science
    Miyahara Masaaki, Sakai Takeshi, Ohtani Eiji, Kobayashi Yusuke, Kamada Seiji, Kondo Tadashi, Nagase Toshiro, Yoo Jung Ho, Nishijima Masahiko, Vashaei Zahra, JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES, 103, (2) 88 - 93,   2008年04月
  • Aluminous hydrous mineral delta-AlOOH as a carrier of hydrogen into the core-mantle boundary
    Sano Asami, Ohtani Eiji, Kondo Tadashi, Hirao Naohisa, Sakai Takeshi, Sata Nagayoshi, Ohishi Yasuo, Kikegawa Takumi, GEOPHYSICAL RESEARCH LETTERS, 35, (3) ,   2008年02月02日
  • Hollandite II phase in KAlSi(3)O(8) as a potential host mineral of potassium in the Earth's lower mantle
    Hirao Naohisa, Ohtani Eiji, Kondo Tadashi, Sakai Takeshi, Kikegawa Takumi, PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 166, (1-2) 97 - 104,   2008年01月
  • Interaction between iron and post-perovskite at core-mantle boundary and core signature in plume source region
    Sakai Takeshi, Kondo Tadashi, Ohtani Eiji, Terasaki Hidenori, Endo Noriaki, Kuba Toshiko, Suzuki Toshiaki, Kikegawa Takumi, GEOPHYSICAL RESEARCH LETTERS, 33, (15) ,   2006年08月11日

MISC

受賞

  •   2017年09月, 日本鉱物科学会, 日本鉱物科学会研究奨励賞

競争的資金



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