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Creation of the best model of the Earth's core

Research Project

Project/Area Number 15H05748
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Research Field Petrology/Mineralogy/Economic geology
Research InstitutionTohoku University

Principal Investigator

Ohtani Eiji  東北大学, 理学研究科, 学術研究員 (60136306)

Co-Investigator(Kenkyū-buntansha) 坂巻 竜也  東北大学, 理学研究科, 助教 (30630769)
平尾 直久  公益財団法人高輝度光科学研究センター, 利用研究促進部門, 研究員 (70374915)
福井 宏之  兵庫県立大学, 物質理学研究科, 助教 (90397901)
宮原 正明  広島大学, 理学研究科, 准教授 (90400241)
鈴木 昭夫  東北大学, 理学研究科, 准教授 (20281975)
Project Period (FY) 2015-05-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥194,610,000 (Direct Cost: ¥149,700,000、Indirect Cost: ¥44,910,000)
Fiscal Year 2019: ¥35,750,000 (Direct Cost: ¥27,500,000、Indirect Cost: ¥8,250,000)
Fiscal Year 2018: ¥35,230,000 (Direct Cost: ¥27,100,000、Indirect Cost: ¥8,130,000)
Fiscal Year 2017: ¥35,360,000 (Direct Cost: ¥27,200,000、Indirect Cost: ¥8,160,000)
Fiscal Year 2016: ¥47,320,000 (Direct Cost: ¥36,400,000、Indirect Cost: ¥10,920,000)
Fiscal Year 2015: ¥40,950,000 (Direct Cost: ¥31,500,000、Indirect Cost: ¥9,450,000)
Keywords核 / 軽元素 / 相平衡 / 放射光 / 高温高圧 / 音速 / 状態方程式 / 磁性 / 地球核 / X線非弾性散乱 / 放射光メスバウア法 / 放射光メスバウア分光 / 中性子回折 / 中性子回折実験 / X線非弾性散乱法
Outline of Final Research Achievements

We determined the phase relations, element partitioning, equation of state, sound velocity, and magnetic and crystallographic characteristics of core forming iron alloys by using synchrotron X-ray powder diffraction, inelastic X-ray scattering, and Mossbauer spectroscopy, and neutron powder diffraction. Based on these measurements, we elucidated properties of the iron-light element alloys, and clarified that silicon, oxygen, sulfur, and hydrogen as well as nickel are promising minor elements in the core. Moreover, it was clarified that silicon is the main constituent light element of the inner core. Furthermore, we revealed that the inner core consists of a mixture of hcp phase and B2 phase. We presented a model of the inner core which is composed of a two phase mixture of hcp and B2 phases. This model can explain the enigmatic features of the inner core, the low shear velocity and large Poisson's ratio, which cannot be accounted for by the conventional models of the inner core.

Academic Significance and Societal Importance of the Research Achievements

地球核の研究は地球惑星科学のフロンテイアである.この研究では,超高圧高温実験と放射光X線・中性子線を用いた測定方法の技術開発を行いつつ,地球核を構成する物質の諸物性を解明し,地球核の新たなモデルを構築した.これによって,地球型惑星の構造とその形成過程の理解を増進した.さらに,本研究において開発された実験方法は,関連する物理学・材料科学分野において使用されるなど,地球惑星科学のみならず,広く物性科学,材料科学分野においても貢献をしている.

Assessment Rating
Verification Result (Rating)

A

Assessment Rating
Result (Rating)

A: Progress in the research is steadily towards the initial goal. Expected research results are expected.

Report

(11 results)
  • 2020 Research Progress Assessment (Verification Result) ( PDF )
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report   Abstract(Research Progress Assessment) ( PDF )   Research Progress Assessment (Result) ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Abstract ( PDF )   Comments on the Screening Results ( PDF )   Annual Research Report
  • Research Products

    (181 results)

All 2020 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (8 results) Journal Article (58 results) (of which Int'l Joint Research: 37 results,  Peer Reviewed: 57 results,  Open Access: 16 results,  Acknowledgement Compliant: 11 results) Presentation (103 results) (of which Int'l Joint Research: 76 results,  Invited: 22 results) Book (3 results) Remarks (9 results)

  • [Int'l Joint Research] Bayeriches Geoinstitute(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] California Institute of Technology(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Bayerisches Geoinstitut(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] California Insitute of Technology/Advance Photon Source(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ソボレフ地質学鉱物学研究所(ロシア連邦)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] バイロイト大学バイエルン地球科学研究所(ドイツ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] IPGP, パリ大学(フランス)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] ソボレフ地質学鉱物学研究所(ロシア連邦)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Phase and melting relations of Fe3C to 300 GPa and carbon in the core, Carbon in Earth’s Interior2020

    • Author(s)
      Takahashi, S., Ohtani, E., Sakai, T., Kamada, S., Ozawa, S., Sakamaki, T., Miyahara, M., Ito, Y., Hirao, N., Ohishi, Y.
    • Journal Title

      Geophysical Monograph 249, First Edition

      Volume: 249 Pages: 25-36

    • DOI

      10.1002/9781119508229.ch3

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] New developments in high-pressure X-ray diffraction beamline for diamond anvil cell at SPring-82020

    • Author(s)
      Hirao N.、Kawaguchi S. I.、Hirose K.、Shimizu K.、Ohtani E.、Ohishi Y.
    • Journal Title

      Matter and Radiation at Extremes

      Volume: 5 Issue: 1 Pages: 018403-018403

    • DOI

      10.1063/1.5126038

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interstitial hydrogen atoms in face-centered cubic iron in the Earth’s core2019

    • Author(s)
      Ikuta, D., Ohtani, E., Sano-Furukawa, A., Shibazaki, Y., Terasaki, H., Yuan, L., Hattori, T.
    • Journal Title

      SCIENTIFIC REPORTS

      Volume: 9 Issue: 1 Pages: 7108-7108

    • DOI

      10.1038/s41598-019-43601-z

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thermal Equation of State of Fe3C to 327 GPa and Carbon in the Core2019

    • Author(s)
      Suguru Takahashi, Eiji Ohtani, Daijo Ikuta, Seiji Kamada, Tatsuya Sakamaki, Naohisa Hirao, Yasuo Ohishi
    • Journal Title

      Minerals

      Volume: 9(12) Issue: 12 Pages: 744-744

    • DOI

      10.3390/min9120744

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stability of Fe-bearing hydrous phases and element partitioning in the system MgO-Al2O3-Fe2O-SiO2-H2O in Earth's lowermost mantle2019

    • Author(s)
      Yuan, H., Zhang, L., Ohtani, E., Meng, Y., Greenberg, E., Prakapenka, V.B.
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 524 Pages: 115714-115714

    • DOI

      10.1016/j.epsl.2019.115714

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Compressional behavior and spin state of δ-(Al,Fe) OOH at high pressures.2019

    • Author(s)
      Ohira, I., Jackson, J.M., Solomatova, N.V., Sturhahn, W., Finkelstein, G.J., Kamada, S., Kawazoe, T., Maeda, F., Hirao, N., Nakano S., Toellners, T.S., Suzuki, A., Ohtani, E.
    • Journal Title

      American Mineralogist

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Olivine melting at high pressure condition in the chassignite Northwest Africa 27372019

    • Author(s)
      Miyahara M., Ohtani E., Nishijima M., and El Goresy A
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 291 Pages: 1-11

    • DOI

      10.1016/j.pepi.2019.04.001

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evidence for early impact on a hot differentiated planetesimal from Al-rich micro-inclusions in ungrouped achondrite Northwest Africa 73252019

    • Author(s)
      Yang J., Zhang C., Miyahara M., Tang X., Gu L. and Lin Y.
    • Journal Title

      Geochimica et Cosmochimica Acta,

      Volume: - Pages: 310-335

    • DOI

      10.1016/j.gca.2019.03.010

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Sound velocity of Fe3C at high pressure and high temperature determined by inelastic X-ray scattering2018

    • Author(s)
      Takahashi Suguru, Ohtani Eiji, Sakamaki Tatsuya, Kamada Seiji, Fukui Hiroshi, Tsutsui Satoshi, Uchiyama Hiroshi, Ishikawa Daisuke, Baron Alfred Q.R.
    • Journal Title

      Comptes Rendus Geoscience

      Volume: 印刷中 Issue: 2-3 Pages: 190-196

    • DOI

      10.1016/j.crte.2018.09.005

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electronic properties and compressional behavior of Fe-Si alloys at high pressure2018

    • Author(s)
      Kamada Seiji、Suzuki Nanami、Maeda Fumiya、Hirao Naohisa、Hamada Maki、Ohtani Eiji、Masuda Ryo、Mitsui Takaya、Ohishi Yasuo、Nakano Satoshi
    • Journal Title

      American Mineralogist

      Volume: 103 Issue: 12 Pages: 1959-1965

    • DOI

      10.2138/am-2018-6425

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interaction of peridotite with Ca-rich carbonatite melt at 3.1 and 6.5 GPa: Implication for merwinite formation in upper mantle, and for the metasomatic origin of sublithospheric diamonds with Ca-rich suite of inclusions2018

    • Author(s)
      Sharygin, I.S., Shatskiy, A., Litasov, K.D., Golovin, A.V., Ohtani, E., Pokhilenko, N.P.
    • Journal Title

      Contributions to Mineralogy and Petrology

      Volume: 173 Issue: 3 Pages: 22-22

    • DOI

      10.1007/s00410-017-1432-3

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fate of water transported into the deep mantle by slab subduction2018

    • Author(s)
      Ohtani, E., Yuan, L., Ohira, I., Shatskiy, A., Litasov, K.D.
    • Journal Title

      Journal of Asian Earth Sciences

      Volume: 167 Pages: 2-10

    • DOI

      10.1016/j.jseaes.2018.04.024

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Discovery of moganite in a lunar meteorite as a trace of H2O ice in the Moon’s regolith2018

    • Author(s)
      Kayama, M., Tomioka, N., Ohtani, E., Seto, Y., Nagaoka, H., Goetze, J., Miyake, A., Ozawa, S., Sekine, T., Miyahara, M., Kazushige, K., Matsumoto, Shoda, N., Hirao, N., Kobayashi, T.
    • Journal Title

      Science advances

      Volume: 4 Issue: 5

    • DOI

      10.1126/sciadv.aar4378

    • NAID

      120006463763

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sound velocity measurements of hcp Fe-Si alloy at high pressure and high temperature by inelastic X-ray scattering2018

    • Author(s)
      Takanori Sakairi, Tatsuya Sakamaki, Eiji Ohtani, Hiroshi Fukui, Seiji Kamada, Satoshi Tsutsui, Hiroshi Uchiyama, Alfred Q.R. Baron
    • Journal Title

      American Mineralogist

      Volume: 103 Issue: 1 Pages: 85-90

    • DOI

      10.2138/am-2018-6072

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Chemical Reactions Between Fe and H2O up to Megabar Pressures and implications for water storage in the Earth’s mantle and core2017

    • Author(s)
      Liang Yuan, Eiji Ohtani, Daijo Ikuta, Seiji Kamada, Jun Tsuchiya, Hirao Naohisa, Yasuo Ohishi, Akio Suzuki
    • Journal Title

      Geophsycical Research Letters

      Volume: 45(3) Issue: 3 Pages: 1330-1338

    • DOI

      10.1002/2017gl075720

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The stability of anhydrous phase B, Mg14Si5O24, at mantle transition zone conditions.2017

    • Author(s)
      Yuan, L., Ohtani, E., Shibazaki, Y., Ozawa, S., Jin, Z., Suzuki, A., Frost, D.
    • Journal Title

      Physics and Chemistry of Minerals,

      Volume: 43 Issue: 6 Pages: 1-9

    • DOI

      10.1007/s00269-017-0939-5

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 6.Compressional sound velocity of hexagonal close-packed iron up to 163 GPa and 3000 K2017

    • Author(s)
      Sakamaki, T., Ohtani, E., Fukui, H., Baron, A.Q.R.
    • Journal Title

      SPring-8/SACLA Research Frontiers

      Volume: 2016 Pages: 82-83

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Melting relations in the Fe-S-Si system at high pressure and temperature: Implications for the planetary core2017

    • Author(s)
      Sakairi, T., Ohtani, E., Kamada, S., Sakai, T., Sakamaki, T., Hirao, N.
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 4:10 Issue: 1 Pages: 1-11

    • DOI

      10.1186/s40645-017-0125-x

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Albite dissociation reaction in the Northwest Africa 8275 shocked LL chondrite and implications for its impact history2017

    • Author(s)
      Miyahara, M., Ohtani, E., Yamaguchi, A.
    • Journal Title

      Geochimica Et Cosmochimica Acta

      Volume: 217 Pages: 320-333

    • DOI

      10.1016/j.gca.2017.08.034

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diamond formation in the deep lower mantle: a high-pressure reaction of MgCO3 and SiO22017

    • Author(s)
      Fumiya Maeda, Eiji Ohtani, Seiji Kamada, Tatsuya Sakamaki, Naohisa Hirao, Yasuo Ohishi
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 40602-40602

    • DOI

      10.1038/srep40602

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Jadeite in shocked meteorites and its textural variations2017

    • Author(s)
      Ohtani, E., Ozawa, S., Miyahara, M.
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 112 Issue: 5 Pages: 247-255

    • DOI

      10.2465/jmps.170329

    • NAID

      130006201314

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Shock-induced P-T conditions and formation mechanism of akimotoite-pyroxene glass assemblages in the Grove Mountains (GRV) 052082 (L6) meteorite.2017

    • Author(s)
      Lu Feng, Masaaki Miyahara, Toshiro Nagase, Eiji Ohtani, Sen Hu, Ahmed El Goresy, Yangting Lin
    • Journal Title

      American Mineralogist

      Volume: 102 Issue: 6 Pages: 1254-1262

    • DOI

      10.2138/am-2017-5905

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spherulite-like” jadeite growth in shock-melt veins of the Novosibirsk H5/6 chondrite2017

    • Author(s)
      Bazhan I.S., Ozawa S., Miyahara M., Ohtani E. and Litasova K.D
    • Journal Title

      Russian Geology and Geophysics

      Volume: 58 Issue: 1 Pages: 12-19

    • DOI

      10.1016/j.rgg.2016.04.012

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Spin state and electronic environment of iron in basaltic glass in the lower mantle2017

    • Author(s)
      Fumiya Maeda, Seiji Kamada, Eiji Ohtani, Naohisa Hirao, Takaya Mitusi, Ryo Masuda, Masaaki Miyahara, Catherine McCammon
    • Journal Title

      American Mineralogist

      Volume: 102 Issue: 10 Pages: 2106-2112

    • DOI

      10.2138/am-2017-6035

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stability field of phase Egg, AlSiO<sub>3</sub>OH at high pressure and high temperature: possible water reservoir in mantle transition zone2017

    • Author(s)
      K. Fukuyama, E. Ohtani, Y. Shibazaki, H. Kagi, and A. Suzuki
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 112 Issue: 1 Pages: 31-35

    • DOI

      10.2465/jmps.160719e

    • NAID

      130005461018

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Shock-induced thermal history of an EH3 chondrite. Asuka 101642017

    • Author(s)
      Kimura M., Yamaguchi A. and Miyahara M
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 52 Issue: 1 Pages: 24-35

    • DOI

      10.1111/maps.12738

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Composition of primary kimberlite melt in a garnet lherzolite mantle source: constraints from melting phase relations in anhydrous Udachnaya-East kimberlite with variable CO2 content at 6.5 GPa2017

    • Author(s)
      Shatskiy A., Konstantin D. Litasov., Igor S. Sharygina., Ohtani E.
    • Journal Title

      Gondwana Research

      Volume: 45 Pages: 208-227

    • DOI

      10.1016/j.gr.2017.02.009

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Origin of EL3 chondrites: Evidence for variable C/O ratios during their course of formation; A state of the art scrutiny2017

    • Author(s)
      El Goresy A., Lin Y., Miyahara M., Gannoun A., Boyet M., Ohtani E., Gillet Ph., Trieloff M., Simionovici A., Feng L. and Lemelle L.
    • Journal Title

      Meteoritics & Planetary Science

      Volume: 印刷中 Issue: 5 Pages: 781-806

    • DOI

      10.1111/maps.12832

    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Constraints on Earth's inner core composition inferred from measurements of the sound velocity of hcp-iron in extreme conditions2016

    • Author(s)
      T. Sakamaki, E. Ohtani, H. Fukui, S. Kamada, S. Takahashi, T. Sakairi, A. Takahata, T. Sakai, S. Tsutsui, D. Ishikawa, R. Shiraishi, Y. Seto, T. Tsuchiya, and A. Q. R. Baron
    • Journal Title

      Science Advances

      Volume: 2 Issue: 2 Pages: 2-2

    • DOI

      10.1126/sciadv.1500802

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Magnetic and spin transitions in w&uuml;stite: A synchrotron M&ouml;ssbauer spectroscopic study2016

    • Author(s)
      M. Hamada, S. Kamada, E. Ohtani, T. Mitsui, R. Masuda, T. Sakamaki, N. Suzuki, F. Maeda and M. Akasaka
    • Journal Title

      Physical Review B

      Volume: 93 Issue: 15 Pages: 155165-155165

    • DOI

      10.1103/physrevb.93.155165

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Compressional and shear wave velocities for polycrystalline bcc-Fe up to 6.3 GPa and 800 K2016

    • Author(s)
      Y. Shibazaki, K. Nishida, Y. Higo, M Igarashi, M. Tahara, T. Sakamaki, H. Terasaki, Y. Shimoyama, S. Kuwabara, Y. Takubo, E. Ohtani
    • Journal Title

      American mineralogist

      Volume: 101 Issue: 5 Pages: 1150-1160

    • DOI

      10.2138/am-2016-5545

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Phase transition processes of olivine in the shocked Martian meteorite Tissint: Clues to origin of ringwoodite-, bridgmanite- and magnesiow&uuml;stite-bearing assemblages2016

    • Author(s)
      Miyahara M., Ohtani E., El Goresy A., Ozawa S. and Gillet Ph.
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 259 Pages: 18-28

    • DOI

      10.1016/j.pepi.2016.08.006

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Discovery of natural MgSiO3 tetragonal garnet in a shocked chondritic meteorite2016

    • Author(s)
      Tomioka, N., Miyahara, M., and Ito, M.
    • Journal Title

      Science Advances

      Volume: 2 Issue: 3

    • DOI

      10.1126/sciadv.1501725

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Effect of cation substitution on bridgmanite elasticity: A key to interpret seismic anomalies in the lower mantle2016

    • Author(s)
      Hiroshi Fukui, Akira Yoneda, Akihiko Nakatsuka, Noriyoshi Tsujino, Seiji Kamada, Eiji Ohtani, Anton Shatskiy, Naohisa Hirao, Satoshi Tsutsui, Hiroshi Uchiyama, Alfred Q. R. Baron
    • Journal Title

      Scientific Reports

      Volume: 6 Issue: 1 Pages: 33337-33337

    • DOI

      10.1038/srep33337

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dynamical and elastic properties of MgSiO3 perovskite (bridgmanite)2016

    • Author(s)
      Wehinger B., Bosak A., Nazzareni S., Antonangeli D., Mirone A., Chaplot S.L., Mittal R., Ohtani E., Shatskiy A., Saxena S., Ghose S., Krisch M.
    • Journal Title

      Geophysical Research Letters

      Volume: 43 Issue: 6 Pages: 2568-2575

    • DOI

      10.1002/2016gl067970

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Electrical conductivity model of of Al-bearing bridgmanite with implications for the electrical structure of the Earth's lower mantle2016

    • Author(s)
      T. Yoshino, S. Kamada, C. Zhao, E. Ohtani, and N. Hirao
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 434 Pages: 208-219

    • DOI

      10.1016/j.epsl.2015.11.032

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Phase relations on the K2CO3-CaCO3-MgCO3 join at 6 GPa and 900-1400 ?C: Implications for incipient melting in carbonated mantle domains2016

    • Author(s)
      Shatskiy A., Litasov K. D., Palyanov Y. N., Ohtani E
    • Journal Title

      American Mineralogist

      Volume: 101 Issue: 2 Pages: 437-447

    • DOI

      10.2138/am-2016-5332

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Sound velocities of δ‐AlOOH up to core‐mantle boundary pressures with implications for the seismic anomalies in deep mantle2016

    • Author(s)
      I. Mashino, M. Murakami, E. Ohtani
    • Journal Title

      Journal of Geophysical Research

      Volume: 121 Issue: 2 Pages: 12477-12477

    • DOI

      10.1002/2015jb012477

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] In situ X-ray observation of 10 &Aring; phase stability at high pressure2016

    • Author(s)
      Sergey V. Rashchenko., Kamada S., Hirano N., Hirao N., Konstantin D. Litasov. and Ohtani E
    • Journal Title

      American Mineralogist

      Volume: 101 Issue: 2 Pages: 431-436

    • DOI

      10.2138/am-2016-5356

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Preface for the article collection “High-Pressure Earth and Planetary Science in the last and next decade”2016

    • Author(s)
      T. Sakamaki, A. Suzuki, and B. Mysen
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 3 Issue: 1 Pages: 38-38

    • DOI

      10.1186/s40645-016-0114-5

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Phase relations on the K2CO3-CaCO3-MgCO3 join at 6 GPa and 900-1400℃: Implications for incipient melting in carbonated mantle domains2016

    • Author(s)
      Shatskiy A., Litasov KD., Palyanov YN., Ohtani E.
    • Journal Title

      American Mineralogist

      Volume: 101 Pages: 413-447

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In-situ structural changes of amorphous diopside (CaMgSi2O6) up to 20GPa: A Raman and O K-edge X-ray Raman spectroscopic study2016

    • Author(s)
      B. J. A. Moulton, G. S. Henderson, H. Fukui, N. Hiraoka, D. de Ligny, C. Sonneville, and M. Kanzaki
    • Journal Title

      Geochimica et Cosmochimica Acta

      Volume: 178 Pages: 41-61

    • DOI

      10.1016/j.gca.2016.01.020

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Unique large diamonds in a ureilite from Almahata Sitta 2008 TC3 asteroid2015

    • Author(s)
      Miyahara M., Ohtani E., El Goresy A., Lin Y., Feng L., Zhang J., Gillet P., Nagase T., Muto J., Nishijima M.
    • Journal Title

      Geochimica et Cosmochimica Acta

      Volume: 163 Pages: 14-26

    • DOI

      10.1016/j.gca.2015.04.035

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stability of hydrous minerals and water reservoirs in the deep Earth’s interior2015

    • Author(s)
      Ohtani, E., Y. Amaike, S. Kamada, I. Ohira, I. Mashino
    • Journal Title

      In Deep Earth: Physics and Chemistry of the Lower Mantle and Core

      Volume: 217 Pages: 265-268

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sound velocity of hcp-Fe at high pressure : experimental constraints extrapolations and comparison with seismic models2015

    • Author(s)
      Amtonangeli, D. and E. Ohtani
    • Journal Title

      Progress in Earth Planetary Science

      Volume: 2 Issue: 1

    • DOI

      10.1186/s40645-015-0034-9

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In situobservation of the pyroxene-majorite transition in Na2MgSi5O12 using synchrotron radiation and raman spectroscopy of Na-majorite2015

    • Author(s)
      Dymshits A., Sharygin I., Litasov K., Shatskiy A., Gavryushkin P., Ohtani E., Suzuki A., Funakoshi K.
    • Journal Title

      American Mineralogist

      Volume: 100 Issue: 2-3 Pages: 378-384

    • DOI

      10.2138/am-2015-4801

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Problems related to crystallogenesis and the deep carbon cycle2015

    • Author(s)
      Sobolev NV., Dobretsov NL., Ohtani E., Taylor LA., Schertil HP., Palyanov NY., Litasov KD.
    • Journal Title

      Russian Geology and Geophysics

      Volume: 56 Pages: 1-12

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The system Na2CO3-FeCO3 at 6 GPa and its relation to the system Na2Co3-FeCO3-MgCO32015

    • Author(s)
      Shatskiy A., Rashchenko SV., Ohtani E., Litasov KD., Khlestov MV., Borzdov YM., Kupriyanov IN., Sharygin IS., Palyanov YN.
    • Journal Title

      American Mineralogist

      Volume: 100 Issue: 1 Pages: 130-137

    • DOI

      10.2138/am-2015-4777

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Discovery of stishovite in Apollo 15299 sample2015

    • Author(s)
      Kaneko S., Miyahara M., Ohtani E., Arai T., Hirao N,, Sato K.
    • Journal Title

      American Mineralogist

      Volume: 100 Issue: 5-6 Pages: 1308-1311

    • DOI

      10.2138/am-2015-5290

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] In situ X-ray diffraction study of decomposition of polycyclic aromatic hydrocarbons at pressures of 7-15 GPa: Implication to fluids under the Earth’s and planetary environments2015

    • Author(s)
      Chanyshev AD., Litasov KD., Shatskiy A., Ohtani E.
    • Journal Title

      Chemical Geology

      Volume: 105 Pages: 39-47

    • DOI

      10.1016/j.chemgeo.2015.04.004

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Conjecture with water and rheological control for subducting slab in the mantle transition zone2015

    • Author(s)
      Tajima F., Yoshida M., Ohtani E.
    • Journal Title

      Geoscience Frontiers

      Volume: 6 Pages: 79-93

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phase relationships in the system K2CO3-CaCO3 at 6 GPa and 900-1450 degrees C2015

    • Author(s)
      Shatskiy A., Borzdov YM., Litasov KD., Sharygin IS., Palyanov YN., Ohtani E.
    • Journal Title

      American mineralogist

      Volume: 100 Issue: 1 Pages: 223-232

    • DOI

      10.2138/am-2015-5001

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Raman spectroscopic and X-ray diffraction studies of the Na-Ca carbonates synthesized under upper mantle conditions2015

    • Author(s)
      Shatskiy, A.; Gavryushkin, P.N.; Litasov, K. D.; Koroleva, O.N.; Kupriyanov I.N.; Borzdov Yu.M.; Sharygin I.S.; Funakoshi, K.; Palyanov Y.N.; Ohtani E.
    • Journal Title

      European Journal of Mineralogy

      Volume: 27 Issue: 2 Pages: 175-184

    • DOI

      10.1127/ejm/2015/0027-2426

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The reactions between iron and magnesite at 6 GPa and 1273–1873 K: Implication to reduction of subducted carbonate in the deep mantle2015

    • Author(s)
      Martirosyan NS., Litasov KD., Shatskiy A., Ohtani E.
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 110 Issue: 2 Pages: 49-59

    • DOI

      10.2465/jmps.141003a

    • NAID

      130005067160

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pressure-induced dissociation of water molecules in ice VII2015

    • Author(s)
      T. Iitaka, H. Fukui, Z. Li, N. Hiraoka, and T. Irifune
    • Journal Title

      Scientific Reports

      Volume: 5 Issue: 1 Pages: 12551-12551

    • DOI

      10.1038/srep12551

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Temperature dependence of crystal structure of CaGeO3 high-pressure perovskite phase and experimental determination of its Debye temperatures studied by low- and high-temperature single crystal X-ray diffraction2015

    • Author(s)
      A. Nakatsuka, S. Kuribayashi, N. Nakayama, H. Fukui, H. Arima, A. Yoneda and A. Yoshiasa
    • Journal Title

      American Mineralogist

      Volume: 100 Issue: 5-6 Pages: 1190-1202

    • DOI

      10.2138/am-2015-4945

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Melting phase relations of the Udachnaya-East Group-I kimberlite at 3.0-6.5 GPa: Experimental evidence for alkali-carbonate composition of primary kimberlite melts and implications for mantle plumes.2015

    • Author(s)
      Sharigin I., Litasov KD., Shatskiy A., Golovin AV., Ohtani E., Pokhilenko NP.
    • Journal Title

      Gondwana Research

      Volume: 28 Issue: 4 Pages: 1391-1414

    • DOI

      10.1016/j.gr.2014.10.005

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Hydorous minerals and the storage of water in the deep mantle2015

    • Author(s)
      Ohtani E.
    • Journal Title

      Chemical Geology

      Volume: 418 Pages: 6-15

    • DOI

      10.1016/j.chemgeo.2015.05.005

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Presentation] Inner core as a two phase mixture of the Fe-Ni-Si alloys2019

    • Author(s)
      Ohtani, E., Ikuta, D., Hirao, N., Sakamaki, T
    • Organizer
      AGU2019 Fall meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inelastic x-ray scattering at extreme conditions and its geophysical applications2019

    • Author(s)
      Ohtani, E., Sakamaki, T., Fukui, H., Ikuta, D., Ishikawa, D., Uchiyama, H., Tsutsui, S., Baron, A. Q. R.
    • Organizer
      11th International Conference on Inelastic X-ray Scattering (IXS2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Composition of the Earth’s Inner Core Inferred from the Sound Velocity Measurement of Iron-Nickel Alloy at High Pressure and High Temperature2019

    • Author(s)
      Sakamaki, T., Ohtani, E., Fukui, H., Kamada, S., Tsutsui, S., Uchiyama, H., Baron, A. Q. R.
    • Organizer
      Goldschmidt conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sound velocity measurement of Fe-Ni-Si alloys at high pressure and high temperature2019

    • Author(s)
      Ikuta, D., Ohtani, E., Sakamaki, T., Fukui, H., Uchiyama, H., Tsutsui, S., Baron, A. Q. R
    • Organizer
      第60回高圧討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Sound velocity and Mossbauer spectroscopy measurements of FeH22019

    • Author(s)
      Ikuta, D., Ohtani, E., Kawaguchi-Imada, S., Hirao, N., Ohishi, Y.
    • Organizer
      日本鉱物科学会2019年年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Phase relations in the Fe-Ni-Si system at high pressures and high temperatures2019

    • Author(s)
      Ikuta, D., Ohtani, E., Kawaguchi-Imada, S, Hirao, N., Ohishi, Y.
    • Organizer
      JpGU Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] P-wave velocity of Fe3S under high pressure and temperature2019

    • Author(s)
      Kamada, S., Terasaki, H., Fukui, H., Sakamaki, T., Uchiyama, H., Tsutsui, S., Ohtani, E., Baron, A. Q. R.
    • Organizer
      JpGU Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] B2 phase in the inner core: constraints from high pressure experiments2019

    • Author(s)
      Ohtani, E., Ikuta, D., Kamada, S., Sakamaki, T., Hirao, N.
    • Organizer
      JpGU Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Role of high pressure hydrous phase in lower mantle dynamics2019

    • Author(s)
      Ohtani, E., Ohira, I., Jackson, J., Ishii, T., Hsieh, W. P.
    • Organizer
      GeoMuenster conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Role of Hydrogen on Composition, Structure, and Dynamics of the Lower Mantle2019

    • Author(s)
      Ohtani, E.
    • Organizer
      Goldschmidt 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Sound velocity measurement of rhenium at extreme pressure conditions by inelastic scattering,2018

    • Author(s)
      Ikuta, D., Ohtani, E. Sakamaki, T. Fukui, H., Ishikawa, D., Baron, A.Q.R.,
    • Organizer
      2018高圧討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] In-situ high pressure and temperature neutron diffraction study of the Fe-H system and hydrogen in the planetary core2018

    • Author(s)
      Eiji Ohtani, Daijo Ikuta, Asami Sano-Furukawa, Yuki Shibazaki, Hidenori Terasaki, Liang Yuan, Takanori Hattori,
    • Organizer
      2018 American Geophysial Union meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hydrous Phases in TZ and Top of Lower Mantle2018

    • Author(s)
      Ohtani, E.
    • Organizer
      Workshop on Intermediate and deep earthquakes: observation and modeling. Collage de France, Paris
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] In-situ neutron diffraction study of the Fe-H system: implications to hydrogen in the core2018

    • Author(s)
      Eiji Ohtani, Daijo Ikuta, Asami Sano-Furukawa, Yuki Shibazaki, Liang Yuan, Hidenori Teraaski, Takanori Hattori
    • Organizer
      2018 International Mineralogical Association general assembly
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Role of hydrogen in the mantle and core,2018

    • Author(s)
      Ohtani, E.
    • Organizer
      ISHA2018 conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Hydrated mantle transition zone and hydrous magmas in the deep mantle2018

    • Author(s)
      Ohtani, E
    • Organizer
      2018 JPGU meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Role of water transported into the deep mantle by subducting slabs2018

    • Author(s)
      Eiji Ohtani, Liang Yuan, Itaru Ohira, Anton Shatskiy, Konstantin Litasov
    • Organizer
      2018 JPGU meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Role of volatiles transported into the mantle transition zone and lower mantle2018

    • Author(s)
      Ohtani, E.
    • Organizer
      Workshop on Deep Volatiles, Energy and Environment Summit
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fate of MgCO3 in subducting slabs and formation of superdeep diamonds and oxidizing zone in the deep lower mantle2017

    • Author(s)
      Maeda, F., Ohtani E., Kamada, S., Sakamaki, T., Hirao, N., Ohishi, Y
    • Organizer
      3rd DCO International Science Meeting
    • Place of Presentation
      Sent Andrews, Scotland UK
    • Year and Date
      2017-03-23
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GS Urey lecture, Fate of volatiles in the deep mantle and the light elements in the Core2017

    • Author(s)
      Ohtani, E
    • Organizer
      Goldschmidt conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Physical and chemical properties of iron alloys and composition of the Earth's inner core2017

    • Author(s)
      Ohtani, E
    • Organizer
      AIRAPT
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Physical Properties of iron-light element alloys and composition of the Earth's core2017

    • Author(s)
      Ohtani, E
    • Organizer
      XXXIV International Conference on "Magmatism of the Earth and related strategic metal deposits"
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Application of a STXM analysis for diamond in ureilite2017

    • Author(s)
      Miyahara, M., Suga, H., Ohtani, E., Ohigashi, T. Inagaki, Y
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Composition of the core: Geochemical and mineral physics constraints2017

    • Author(s)
      Ohtani, E., Sakairi, T., Sakamaki, T., Kamada, S., Tanaka, R., Fukui, H., Baron, A.Q.R.
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Discovery of heavily shocked type 3 ordinary chondrites2017

    • Author(s)
      Miyahara, M., Yamaguchi, A., Ohtani, E.
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Geochemical and mineral physics constraints on the composition of the inner core2017

    • Author(s)
      Ohtani, E., Sakamaki, T., Sakairi, T., Tanaka, R., Kamada, S., Fukui, H., Baran, A.Q.R
    • Organizer
      Goldschmidt conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-pressure dissociation of olivine in North West Africa 7397 lherzolitic shergottite2017

    • Author(s)
      Yoshida, M., Miyahara, M., Yamaguchi, A., Tomioka, N., Sakai, T., Ohfuji, H., Maeda, F., Ohira, I., Ohtani, E., Kamada, S., Suga, H., Ohigashi, T., Inagaki, Y
    • Organizer
      The 8th Symposium on Polar Science
    • Related Report
      2017 Annual Research Report
  • [Presentation] In-situ characterization of carbon components in the North West Africa 70342017

    • Author(s)
      Suga, H., Miyahara, M., Ito, M., Takeichi, Y., Yabuta, H., Takahashi, Y., Ohtani, E.
    • Organizer
      The 8th Symposium on Polar Science
    • Related Report
      2017 Annual Research Report
  • [Presentation] Pressure-volume-temperature behaviors for hydrogen content and volume in iron hydride at high pressure and high temperature2017

    • Author(s)
      Ikuta, D., Ohtani, E., Sano-Furukawa, A., Shibazaki, Y., Terasaki, H., Yuan, L., Hattori, T.,
    • Organizer
      9th High-Pressure Mineral Physics Seminar
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pressure-volume-temperature behaviors of iron hydride at high pressure and high temperature based on neutron diffraction study,2017

    • Author(s)
      Ikuta, D., Ohtani, E., Sano-Furukawa, A., Shibazaki, Y., Terasaki, H., Yuan, L., Hattori, T.,
    • Organizer
      The 58th High Pressure Conference of Japan
    • Related Report
      2017 Annual Research Report
  • [Presentation] Pressure-volume-temperature relations for hydrogen volume and content in iron hydride at high pressure and high temperature2017

    • Author(s)
      Ikuta, D., Sano-Furukawa, A., Shibazaki, Y., Terasaki, H., Yuan, L., Hattori, T., Ohtani, E.
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shock pressure estimation by high-pressure polymorphs and cathodoluminescence spectra of maskelynite in Yamato-790729 L6 chondrite and their significance for collisional condition2017

    • Author(s)
      Kato, Y., Sekine, T., Kayama, M., Miyahara, M., Yamaguchi A
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shocked type 3 ordinary chondrites2017

    • Author(s)
      Miyahara, M., Yamaguchi, A., Ohtani, E., Tomioka, N.,
    • Organizer
      The 8th Symposium on Polar Science
    • Related Report
      2017 Annual Research Report
  • [Presentation] Sound velocity of hcp-Fe at multi-megabar pressures2017

    • Author(s)
      Sakamaki, T., Fukui, H., Ohtani, E., Tanaka, R., Baron, A.Q.R.
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sound velocity of iron-light element compounds and composition of the inner core2017

    • Author(s)
      Ohtani, E., Sakamaki, T., Kamada, S., Ikuta, D., Tanaka, R., Fukui, H., Baron, A.Q.R.
    • Organizer
      9th High-Pressure Mineral Physics Seminar
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The heterogeneities in Lunar interior: Role of High Titanium materials2017

    • Author(s)
      Ohtani, E., Igarashi, M., Sakamaki, T., Zhao, D.
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The sound velocity measurements of FeO at high pressure and temperature: Implications for the low velocity anomaly around the core-mantle boundary2017

    • Author(s)
      Tanaka, R., Sakamaki, T., Fukui, H., Ohtani, E., Kamada, S., Sato, S., Tsutsui, S., Uchiyama, H., Baron, A.Q.R., Suzuki, A.
    • Organizer
      JpGU-AGU Joint Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 音速測定と固液分配実験から測定する内核の組成2017

    • Author(s)
      大谷栄治, 坂巻竜也, 生田大穣, 田中遼介, 福井宏之, バロン・アルフレッド
    • Organizer
      日本鉱物科学会2017年年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 高温高圧下における鉄水素化物中の水素含有量と体積の圧力-体積-温度挙動2017

    • Author(s)
      生田大穣, 大谷栄治, 佐野亜沙美, 柴崎裕樹, 寺崎英紀, 袁亮, 服部高典
    • Organizer
      日本鉱物科学会2017年年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Sound velocity of iron-light element compounds and the chemical structure of the inner core.2016

    • Author(s)
      30.Ohtani E., Sakamaki T., Fukui H., Tanaka R., Shibazaki Y., Kamada S., Sakairi R., Takahashi S., Tsutsui S., Baron Q R A.
    • Organizer
      AGU Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2016-12-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dissociation from plagioclase into jadeite + coesite in a shocked LL7 chondrite.2016

    • Author(s)
      Miyahara M., Ohtani E. and Yamaguchi A
    • Organizer
      The Seventh Symposium on Polar Science
    • Place of Presentation
      Tachikawa, Japan
    • Year and Date
      2016-12-01
    • Related Report
      2016 Annual Research Report
  • [Presentation] Petrology and mineralogy of Northwest Africa 7397 lherzolitic shergottite2016

    • Author(s)
      Yoshida M., Miyahara M.., Sakai T., Ohfuji H., Yamaguchi A., Tomioka N., Maeda F., Ohira I., Kamada S. and Ohtani E
    • Organizer
      The Seventh Symposium on Polar Science
    • Place of Presentation
      Tachikawa, Japan
    • Year and Date
      2016-12-01
    • Related Report
      2016 Annual Research Report
  • [Presentation] Volatile circulation in the mantle and the light elements in the core2016

    • Author(s)
      Ohtani, E
    • Organizer
      Geophysical Laboratory special lecture
    • Place of Presentation
      Carnegie Institution of Washington DC
    • Year and Date
      2016-11-28
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Dehydration of the descending slabs and formation of hydrated zones. International Conference on the Earth’s Deep Interior2016

    • Author(s)
      Ohtani, E
    • Organizer
      2016 ICEDI symposium
    • Place of Presentation
      Wuhan, China
    • Year and Date
      2016-11-05
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高圧研究からみた地球惑星内部(プレナリーレクチャー)2016

    • Author(s)
      大谷栄治
    • Organizer
      第57回高圧討論会
    • Place of Presentation
      筑波大学、つくば
    • Year and Date
      2016-10-26
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] From Volatiles in the Earth to Shocked Meteorites: our exchange and collaborations with BGI in recent 20 years2016

    • Author(s)
      Ohtani, E
    • Organizer
      Symposium for 30th Anniversary of BGI
    • Place of Presentation
      BGI, Bayreuth
    • Year and Date
      2016-09-28
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 深部マントルにおける水の輸送・脱水と加水帯の形成2016

    • Author(s)
      大谷栄治
    • Organizer
      日本鉱物科学会2016年年会
    • Place of Presentation
      金沢大学、金沢
    • Year and Date
      2016-09-23
    • Related Report
      2016 Annual Research Report
  • [Presentation] CBコンドライトに含まれる高圧相2016

    • Author(s)
      宮原正明,大谷栄治,山口亮
    • Organizer
      鉱物科学会2016年年会
    • Place of Presentation
      金沢大学、金沢
    • Year and Date
      2016-09-23
    • Related Report
      2016 Annual Research Report
  • [Presentation] 赤外吸収分光法により検出される月隕石の水2016

    • Author(s)
      9.鹿山雅裕,中嶋悟,富岡尚敬,大谷栄治,瀬戸雄介,長岡央,三宅亮,小澤信,関根利守,宮原正明,留岡和重.
    • Organizer
      日本惑星科学会2016年秋季講演会
    • Place of Presentation
      岡山
    • Year and Date
      2016-09-12
    • Related Report
      2016 Annual Research Report
  • [Presentation] Recent development of High Pressure Experiments on Composition, physical properties, and thermal state of the core2016

    • Author(s)
      Ohtani, E
    • Organizer
      International Symposium: Advances in High Pressure Research III: Towards Geodynamic Implications-2016
    • Place of Presentation
      Novosibirsk, Russia
    • Year and Date
      2016-08-29
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Discovery of coesite, stishovite and seifertite in shocked meteorites and its implication2016

    • Author(s)
      Miyahara M., Ohtani E., Yamaguchi A. and Ozawa S
    • Organizer
      The meteoritical society
    • Place of Presentation
      Berlin, Germany
    • Year and Date
      2016-08-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Natural high-pressure polymorphs of silica in shocked meteorites2016

    • Author(s)
      Miyahara M. and Ohtani E
    • Organizer
      International Workshop:New Challenges in Volatile Cycling in the Deep Earth
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2016-07-03
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Reaction of MgCO3 high-pressure phase and SiO2; Origin of super-deep diamond2016

    • Author(s)
      Maeda F, Kamada S., Ohtani E., Sakamaki T., Hirao N., Ohishi Y.
    • Organizer
      2016 Goldschmidt conference
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      2016-06-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Melting relation in the Fe-S-Si system at 10 GPa: Implications for Mercury’s core.2016

    • Author(s)
      Tobe H., Suzuki A., Shibazaki Y., Sakamaki T., Ohtani E.
    • Organizer
      2016 Goldschmidt conference
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      2016-06-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sound velocity of Fe3C and carbon in the core2016

    • Author(s)
      Takahashi S., Ohtani E., Sakamaki T., Kamada S., Fukui H., Baron, A.Q.R..
    • Organizer
      2016 Goldschmidt conference
    • Place of Presentation
      Yokohama, Japan
    • Year and Date
      2016-06-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shock Metamorphism of chondrites and other meteorites: Application of Micro-Raman spectroscopy.2016

    • Author(s)
      Ohtani, E. Masaaki Miyahara, Shin Ozawa, Ivan Bazhan, Konstantin D. Litasov
    • Organizer
      2016 GeoRaman workshop
    • Place of Presentation
      Novosibirsk, Russia
    • Year and Date
      2016-06-03
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Formation of a hydration zone at the bottom of the lower mantle2016

    • Author(s)
      Ohtani E
    • Organizer
      Japan Geoscience Union Meeting
    • Place of Presentation
      Makuhari, Chiba Prefecture, Japan
    • Year and Date
      2016-05-22
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Sound velocity Fe3S at high pressure and high temperature based on inelastic X-ray scattering2016

    • Author(s)
      Kamada S., Sakairi T., Sakamaki T., Ohtani E., Terasaki H., Fukui H., Baron, A.Q.R., Suzuki A., Uchiyama H., Tsutsui S.
    • Organizer
      Japan Geoscience Union Meeting
    • Place of Presentation
      Makuhari, Chiba, Japan
    • Year and Date
      2016-05-22
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A high-pressure polymorph inventory in shocked L type ordinary chondrites2016

    • Author(s)
      Miyahara M., Yamaguchi A., Ohtani E. and Saitoh M
    • Organizer
      2016 Japan Geoscience Union meeting
    • Place of Presentation
      Makuhari, Chiba, Japan
    • Year and Date
      2016-05-22
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Origin of water and water reservoirs on the Moon as considered from the perspective of material sciences.2016

    • Author(s)
      Kayama M, Tomioka N., Ohtani E., Nakashima S., Seto Y., Nagaoka H., Fagan T., Goetze J., Miyake A., Ozawa S., Sekine T., Miyahara M., Matsumoto M., Shoda N. and Tomeoka K.
    • Organizer
      2016 Japan Geoscience Union meeting
    • Place of Presentation
      Makuhari, Chiba, Japan
    • Year and Date
      2016-05-22
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Water-rich lunar upper mantle as recorded in lunar meteorites2016

    • Author(s)
      Kayama M., Nakashima S., Tomioka N., Seto Y., Ohtani E., Fagan T., Nagaoka H., Ozawa S., Sekine T., Miyahara M., Miyake A., Fukuda J., Tomeoka K., Ichimura S., Matsumoto M., Suzuki K. and Goetze J.
    • Organizer
      2016 Japan Geoscience Union meeting
    • Place of Presentation
      Makuhari, Chiba, Japan
    • Year and Date
      2016-05-22
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hydrogen and Carbon in the lower mantle and core.2016

    • Author(s)
      Ohtani E.
    • Organizer
      13th International Workshop on WATER DYNAMICS
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evidence for shock-induced metamorphism on CB parent-body.2016

    • Author(s)
      Miyahara M., Ohtani E., Yamaguchi A.
    • Organizer
      13th International Workshop on WATER DYNAMICS
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Stability fields of phase Egg under high pressure and high temperature corresponding to the mantle transition zone.2016

    • Author(s)
      Fukuyama K., Ohtani E., Shibazaki Y., Ozawa S., Suzuki A.
    • Organizer
      13th International Workshop on WATER DYNAMICS
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Melting relation in the Fe-S-Si system under the condition of Mercury’s core2016

    • Author(s)
      Tobe H., Suzuki A., Shibazaki Y., Sakamaki T., Ohtani E.
    • Organizer
      13th International Workshop on WATER DYNAMICS
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Partition experiment between solid and liquid metal in the Fe-Ni-O-S-Si system2016

    • Author(s)
      Tanaka R., Ohtani E., Kamada S., Sakamaki T., Ozawa S.
    • Organizer
      13th International Workshop on WATER DYNAMICS
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental study on the stability of a high-pressure polymorph of Topaz-OH.2016

    • Author(s)
      Abe R., Suzuki A., Shibazaki Y., Ozawa S., Ohira I., Ohtani E.
    • Organizer
      13th International Workshop on WATER DYNAMICS
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pressure-induced change of iron electronic environment in basaltic glass2016

    • Author(s)
      Maeda F., Kamada S., Ohtani E., Suzuki N., Sakamaki T., Hirano N., Mitsui T., Masuda R., Nakano S.
    • Organizer
      13th International Workshop on WATER DYNAMICS
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Metal-silicate partitioning in ultra-high temperature and high pressure conditions.2016

    • Author(s)
      Sato S., Ohtani E., Kamada S., Ozawa S., Sakamaki T.
    • Organizer
      13th International Workshop on WATER DYNAMICS
    • Place of Presentation
      東北大学(宮城県仙台市)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hydrogen in the Earth’s Interior: Hydrous Minerals in the Mantle and Iron Hydrate in the Core2016

    • Author(s)
      Ohtani E.
    • Organizer
      セミナー
    • Place of Presentation
      国際成功大学(台湾台南市)
    • Year and Date
      2016-02-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Core formation process and light elements in the planetary core2015

    • Author(s)
      E. Ohtani, T. Sakairi, K. Watanabe, S. Kamada, T. Sakamaki, N. Hirao
    • Organizer
      AGU Fall Meeting 2015
    • Place of Presentation
      Moscone Center(米国カリフォルニア州)
    • Year and Date
      2015-12-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrical conductivity of Al-bearing bridgmantite2015

    • Author(s)
      Yoshino T., Kamada S., Ohtani E., Hirao N.
    • Organizer
      AGU Fall Meeting 2015
    • Place of Presentation
      Moscone Center(米国カリフォルニア州)
    • Year and Date
      2015-12-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Single crystal elasticity of CaIrO3 and (Mg,Fe,Al)(Si,Al)O3 using inelastic X-ray scattering2015

    • Author(s)
      Hiroshi Fukui, Akira Yoneda and Alfred Q.R. Baron
    • Organizer
      The 9th international conference on inelastic x-ray scattering
    • Place of Presentation
      National Synchrotron Radiation Research Center(台湾新竹市)
    • Year and Date
      2015-11-22
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The systematic investigations of high-pressure polymorphs in shocked L type ordinary chondrites.2015

    • Author(s)
      Miyahara M., Yamaguchi A., Ohtani E. and Saitoh M
    • Organizer
      The 6th Symposium on Polar Science
    • Place of Presentation
      国立極地研究所(東京都立川市)
    • Year and Date
      2015-11-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高温高圧下での非弾性X 線散乱による鉄-ニッケル合金の音速測定2015

    • Author(s)
      坂巻竜也、大谷栄治、福井宏之、鎌田誠司、坂入崇紀、筒井智嗣、アルフレッド・バロン
    • Organizer
      第56回高圧討論会
    • Place of Presentation
      JMSアステールプラザ(広島県広島市)
    • Year and Date
      2015-11-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] 高圧相から探る月起源隕石に記録された衝突史の解明2015

    • Author(s)
      宮原正明,大谷栄治,金子詳平
    • Organizer
      第56回高圧討論会
    • Place of Presentation
      JMSアステールプラザ(広島県広島市)
    • Year and Date
      2015-11-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] H相-δ相固溶体の安定領域と最下部マントルへの水輸送2015

    • Author(s)
      大平格,大谷栄治,境毅,宮原正明,大石泰生,平尾直久,西嶋雅彦
    • Organizer
      第56回高圧討論会
    • Place of Presentation
      JMSアステールプラザ(広島県広島市)
    • Year and Date
      2015-11-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] DAC試料のX線CT-CL測定シミュレーション -三次元CDIに向けて2015

    • Author(s)
      福井宏之,藤原佑気, 大高理, 有馬寛, 竹内晃久
    • Organizer
      第56回高圧討論会
    • Place of Presentation
      JMSアステールプラザ(広島県広島市)
    • Year and Date
      2015-11-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] フェロペリクレイスのフォノン軟化2015

    • Author(s)
      福井宏之, バロン アルフレッド, 土屋卓久, 芳野極, 小林寿夫, 大石泰生
    • Organizer
      第56回高圧討論会
    • Place of Presentation
      JMSアステールプラザ(広島県広島市)
    • Year and Date
      2015-11-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] 高温高圧下におけるFe-Si合金の磁気転移・構造転移と圧縮挙動2015

    • Author(s)
      鈴木那奈美,大谷栄治,鎌田誠司,平尾直久,前田郁也,大石泰生,中野智志
    • Organizer
      第56回高圧討論会
    • Place of Presentation
      JMSアステールプラザ(広島)
    • Year and Date
      2015-11-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] Transport and storage of Volatiles in the mantle and core.2015

    • Author(s)
      Ohtani E
    • Organizer
      The Earth’s Mantle and Core: Structure, Composition, Evolution
    • Place of Presentation
      道後プリンスホテル(愛媛県松山市)
    • Year and Date
      2015-11-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Single Crystal Elasticity of the Lower Mantle Minerals using Inelastic X-ray Scattering Workshop2015

    • Author(s)
      H. Fukui, A. Yoneda, and A. Q. R. Baron
    • Organizer
      The Earth’s Mantle and Core: Structure, Composition, Evolution
    • Place of Presentation
      道後プリンスホテル(愛媛県松山市)
    • Year and Date
      2015-11-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 放射光メスバウア分光とXRDを用いた地球物質の高温高圧その場観察2015

    • Author(s)
      鎌田誠司,平尾直久,大谷栄治,浜田麻希,鈴木那奈美,前田郁也,大石泰生,増田亮,三井隆也
    • Organizer
      SPring-8シンポジウム2015
    • Place of Presentation
      九州大学伊都キャンパス(福岡)
    • Year and Date
      2015-11-05
    • Related Report
      2015 Annual Research Report
  • [Presentation] 核の形成過程と核の軽元素2015

    • Author(s)
      大谷栄治、渡邉虹水、坂入崇紀、鎌田誠司、坂巻竜也、平尾直久、大石泰生
    • Organizer
      日本鉱物科学会2015年年会
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2015-09-25
    • Related Report
      2015 Annual Research Report
  • [Presentation] 月隕石に存在する水の痕跡と水に富む月のマントル2015

    • Author(s)
      鹿山雅裕,富岡尚敬,大谷栄治,瀬戸雄介,中嶋悟,関根利守,宮原正明,小澤信,三宅亮,福田惇一,留岡和重,西戸裕嗣,Gotze Jens,Fagan Timothy
    • Organizer
      日本鉱物科学会2015年年会
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2015-09-25
    • Related Report
      2015 Annual Research Report
  • [Presentation] CBコンドライトに記録された衝撃変成作用2015

    • Author(s)
      宮原正明,大谷栄治,山口亮
    • Organizer
      日本鉱物科学会2015年年会
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2015-09-25
    • Related Report
      2015 Annual Research Report
  • [Presentation] 高圧下における放射光メスバウア分光法を用いたFe3Sの磁性転移とFeOの電子状態2015

    • Author(s)
      鎌田誠司,平尾直久,鈴木那奈美,前田郁也,濱田麻希,大谷栄治,大石泰生,増田亮,三井隆也
    • Organizer
      日本鉱物科学会2015年年会
    • Place of Presentation
      東京(東京大学)
    • Year and Date
      2015-09-25
    • Related Report
      2015 Annual Research Report
  • [Presentation] 超高温高圧下における鉄合金の音速測定2015

    • Author(s)
      坂巻竜也
    • Organizer
      地球惑星科学研究会、高圧物質科学研究会、機能性材料ナノスケール原子相関研究会合同研究会
    • Place of Presentation
      九州大学(福岡県福岡市)
    • Year and Date
      2015-09-12
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Melting relationships of the Fe-light elements systems under high pressures.2015

    • Author(s)
      Kamada S., Sakairi T., Takahata A., Kobayashi K., Takada H., Takahashi S., Terasaki H., Ohtani E., Hirao N., Ohishi Y.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-pressure assemblages in the Pervomaisky meteorite2015

    • Author(s)
      Bazhan I., Ozawa S., Ohtani E., Litasov K.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phase diagrams of naphthalene, anthracene, pyrene and coronene at pressures up to 8 GPa.2015

    • Author(s)
      Chanyshev AD., Litasov KD., Shatskiy AF., Sharygin IS., Ohtani E., Higo Y.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hydration of Fe-bearing compounds at 6-20 GPa2015

    • Author(s)
      Litasov K., Ohtani E., Shatskiy A.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electronic environment of iron in basaltic glass at high pressure.2015

    • Author(s)
      Maeda F., Ohtani E., Kamada S., Sakamaki T., Suzuki N., Hirao N., Ohishi Y., Mitsui T., Masuda R.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-pressure stability of djerfisherite: Implication for its origin in diamonds and mantle xenoliths2015

    • Author(s)
      Minin DA., Sharygin IS., Litasov KD., Sharygin VV., Shatskiy A., Ohtani E.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] New mechanism for water transport into the lowermost mantle2015

    • Author(s)
      Ohira I., Ohtani E.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Formation process and composition of Earth’s core.2015

    • Author(s)
      Ohtani E.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High pressure polymorphs in shocked meteorites, and collision in the Solar System2015

    • Author(s)
      Ohtani E.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Reaction texture between olivine and plagioclase in shock melt vein of Kunashak L6 chondrite2015

    • Author(s)
      Ozawa S., Miyahara M., Ohtani E., Bazhan I., Litasov KD., Pokhilenko NP.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-pressure limits of 10A phase stability2015

    • Author(s)
      Rashchenko SV., Kamada S., Ohtani E.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental reconstruvtion of parental kimberlite melt at PT-conditions of sublithospheric mantle.2015

    • Author(s)
      Shatskiy A., Litasov KD., Sharygin IS., Mironov AM., Ohtani E.
    • Organizer
      Advances in high Pressure Research II: Deepest Understanding
    • Place of Presentation
      ソボレフ地質学鉱物学研究所(ロシア国ノボシビルスク市)
    • Year and Date
      2015-08-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sound velocity of iron alloys and composition of the core2015

    • Author(s)
      E. Ohtani, T. Sakamaki, S. Kamada, Y. Shibazaki, S. Takahashi, H. Fukui, S. Tsutsui, A. Q. Baron
    • Organizer
      Goldshmidt2015
    • Place of Presentation
      Prague Congress Centre(チェコ共和国プラハ)
    • Year and Date
      2015-08-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evidence for change in C/O ratio during evolution of enstatite chondrites2015

    • Author(s)
      El Goresy A., Lin Y., Miyahara M., Gannoun A., Boyet M., Ohtani Y., Trieloff M.
    • Organizer
      Goldshmidt2015
    • Place of Presentation
      Prague Congress Centre(チェコ共和国プラハ)
    • Year and Date
      2015-08-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Nanosims analysis of C-grains from Martian meteorite NWA 61622015

    • Author(s)
      Lin Y., El Goresy A., Zhang J., Miyahara M., Hao J., Zhang M., Ohtani E., Gillet P.
    • Organizer
      Goldshmidt2015
    • Place of Presentation
      Prague Congress Centre(チェコ共和国プラハ)
    • Year and Date
      2015-08-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Book] CSJ35 有機・無機材料の相転移ダイナミクス―数理から未来のマテリアル開発まで. トピックス④2019

    • Author(s)
      大谷栄治
    • Total Pages
      4
    • Publisher
      日本化学同人
    • ISBN
      9784759813951
    • Related Report
      2019 Annual Research Report
  • [Book] 現代地球科学入門シリーズ13 地球内部の物質科学2018

    • Author(s)
      大谷栄治
    • Total Pages
      166
    • Publisher
      共立出版株式会社
    • ISBN
      9784320047211
    • Related Report
      2018 Annual Research Report
  • [Book] Stability of Hydrous Minerals and Water Reservoirs in Deep Earth Interior. In Deep Earth: Physics and Chemistry of the Lower Mantle and Core. Edited by Hidenori Terasaki and Rebecca A. Fischer2016

    • Author(s)
      Ohtani E., Amaike Y., Kamada S., Ohhira I. and Mashino I.
    • Total Pages
      10
    • Publisher
      Geophysical Monograph 217, American Geophysical Union
    • Related Report
      2016 Annual Research Report
  • [Remarks] Eiji Ohtani - Tohoku University

    • URL

      http://epms.es.tohoku.ac.jp/minphys/ohtani/eindex_ohtani.html

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Remarks] OHTANI Eiji - Tohoku University

    • URL

      http://db.tohoku.ac.jp/whois/e_detail/9964bb514897cf4c21b0438da2929547.html

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Remarks] Ohtani Laboratory

    • URL

      http://epms.es.tohoku.ac.jp/minphys/index.html

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Remarks] 地球核の最適もモデルの創出

    • URL

      http://epms.es.tohoku.ac.jp/minphys/S_HP27-31/index_s.html

    • Related Report
      2017 Annual Research Report
  • [Remarks] Creation of the best model of the core

    • URL

      http://epms.es.tohoku.ac.jp/minphys/S_HP27-31/index_s_e.html

    • Related Report
      2017 Annual Research Report
  • [Remarks] 大谷栄治

    • URL

      http://epms.es.tohoku.ac.jp/minphys/ohtani/index_ohtani.html

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
  • [Remarks] Eiji Ohtani

    • URL

      http://epms.es.tohoku.ac.jp/minphys/ohtani/eindex_ohtani.html

    • Related Report
      2016 Annual Research Report
  • [Remarks] 地球核の最適モデルの創出

    • URL

      http://epms.es.tohoku.ac.jp/minphys/S_HP27-31/index_s.html

    • Related Report
      2016 Annual Research Report
  • [Remarks] Ohtani Laboratory

    • URL

      http://epms.es.tohoku.ac.jp/minphys/j_publications.html

    • Related Report
      2015 Annual Research Report

URL: 

Published: 2015-06-03   Modified: 2023-10-16  

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