The effect of light elements on density and elastic wave velocity of liquid Fe: Implication to light elements in the Earth's outer core

• Project/Area Number: 23340159
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Osaka University
• Principal Investigator: TERASAKI Hidenori 大阪大学, 理学(系)研究科(研究院), 准教授 (50374898)
• Co-Investigator(Kenkyū-buntansha): URAKAWA Satoru 岡山大学, 大学院自然科学研究科, 准教授 (30201958)
• Co-Investigator(Renkei-kenkyūsha): UESUGI Kentaro (財)高輝度光科学研究センター, 利用促進部門, 研究員 (80344399) ; FUNAKOSHI Ken-ichi (財)総合科学研究機構 東海事業センター, 利用研究促進部, 次長 (30344394)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2012: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000); Fiscal Year 2011: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
• Keywords: 鉄合金 / 密度 / 弾性波速度 / 液体 / 中心核 / 高圧 / 融体 / X線トモグラフィー / 軽元素

Outline of Final Research Achievements

In order to clarify the effects of light elements on density and elastic wave velocity of liquid Fe-alloy and to constrain the terrestrial core compositions, we have developed simultaneous measurement system of density and sound velocity for liquid materials under pressure. Density and elastic wave velocity were obtained simultaneously for liquid Ni-S and it is found that there is a linear relationship between these two physical properties. We also obtained following results; density and sound velocity of liquid Fe-Ni-C, effect of pressure on density of Fe-C and on sound velocity of Fe-Ni-C. These results provide important aspects for understanding the effect of light elements on the elastic properties of liquid Fe.

Research Products

• [Journal Article] Equation of state of Fe3S at room temperature up to 2 megabars (2014)
  • Author(s): Kamada S., Ohtani E., Terasaki H., Sakai T., Takahashi S., Hirao N., Ohishi Y.
  • Journal Title: Physics of the Earth and Planetary Interiors Volume: 228 Pages: 106-113
  • Peer Reviewed
• [Journal Article] High-pressure and high-temperature phase diagram for Fe0.9Ni0.1-H alloy (2014)
  • Author(s): Shibazaki Y., Terasaki H., Ohtani E., Tateyama R., Nishida K., Funakoshi K., Higo Y.
  • Journal Title: Physics of the Earth and Planetary Interiors Volume: 228 Pages: 192-201
  • Peer Reviewed
• [Journal Article] The sound velocity measurements of Fe3S (2014)
  • Author(s): Kamada S., Ohtani E., Fukui H., Sakai T., Terasaki H., Takahashi S., Shibazaki Y., Tsutsui S., Baron A. Q. R., Hirao N., Ohishi Y.
  • Journal Title: American Mineralogist Volume: 99 Pages: 98-101
  • Peer Reviewed
• [Journal Article] Density of Fe-3.5wt% C liquid at high pressure and temperature and the effect of carbon on the density of the molten iron (2013)
  • Author(s): Shimoyama Y., Terasaki H., Ohtani E., Urakawa S. Takubo Y., Nishida K., Suzuki A., Katayama Y.
  • Journal Title: Physics of the Earth and Planetary Interiors Volume: 224 Pages: 77-82
  • Peer Reviewed
• [Journal Article] Ponded melt at the boundary between the lighosphere and asthenosphere. (2013)
  • Author(s): Sakamaki T., Suzuki A., Ohtani E., Terasaki H., Urakawa S., Kataynma Y., Funakoshi K., Wang Y., Hernlund J. W., Ballmer M. D.
  • Journal Title: Nature Geoscience Volume: 6 Issue: 12 Pages: 1041-1044
  • DOI: 10.1038/ngeo1982
  • Peer Reviewed
• [Journal Article] Phase relations in the carbon-saturated C-Mg-Fe-Si-O system and C and Si solubility in liquid Fe at high pressure and temperature : implications for planetary interiors (2013)
  • Author(s): Suguru Takahashi, Eiji Ohtani, Hidenori Terasaki, Yoshinori Ito, Yuki Shibazaki, Miho Ishii, Ken-ichi Funakoshi, Yuji Higo
  • Journal Title: Physics and Chemistry of Minerals Volume: 40 Issue: 8 Pages: 647-657
  • DOI: 10.1007/s00269-013-0600-x
  • Peer Reviewed
• [Journal Article] Sound velocity measurements in liquid Fe-S at high pressure: Implications for Earth's and lunar cores (2013)
  • Author(s): Nishida, et al.
  • Journal Title: Earth and Planetary Science Letters Volume: 362 Pages: 182-186
  • DOI: 10.1016/j.epsl.2012.11.042
  • Peer Reviewed
• [Journal Article] Interfacial tension of Fe-Si liquid at high pressure: Implications for liquid Fe-alloy droplet size in magma oceans. (2012)
  • Author(s): Terasaki H., Urakawa S., Rubie DC, Funakoshi K., Sakamaki T., Shibazaki Y., Ozawa S., Ohtani, E
  • Journal Title: Physics of the Earth and Planetary Interiors Volume: 202 Pages: 1-6
  • DOI: 10.1016/j.pepi.2012.05.002
  • Peer Reviewed
• [Journal Article] Melting relationships in the Fe-Fe3S system up to the outer core conditions (2012)
  • Author(s): Kamada, S., E. Ohtani, H. Terasaki, T. Sakai, M. Miyahara, Y. Ohishi, N. Hirao
  • Journal Title: Earth and Planetary Science Letters Volume: 359-360 Pages: 26-33
  • DOI: 10.1016/j.epsl.2012.09.038
  • Peer Reviewed
• [Journal Article] Melting relation of FeS-H system under high pressure: Implications for the core of Ganymede (2012)
  • Author(s): Shibazaki, Y., Ohtani, E., Terasaki, H.
  • Journal Title: SPring-8 Research Frontiers Volume: 2011 Pages: 102-103
• [Journal Article] Stability of Fe-Ni hydride after the reaction between Fe-Ni alloy and hydrous phase (δ-AlOOH) up to 1.2 Mbar : Possibility of H contribution to the core density deficit (2012)
  • Author(s): H.Terasaki, E.Ohtani, T.Sakai, S.Kamada, H.Asanuma, Y.Shibazaki, N.Hirao, N.Sata, Y.Ohishi, T.Sakamaki, A.Suzuki, K.Funakoshi
  • Journal Title: Physics of the Earth and Planetary Interiors Volume: 194-195 Pages: 18-24
  • DOI: 10.1016/j.pepi.2012.01.002
  • Peer Reviewed
• [Journal Article] Hydrogenation of FeSi under high pressure (2011)
  • Author(s): Terasaki, H., Y. Shibazaki, T. Sakamaki, R. Tateyama, E. Ohtani, K. Funakoshi, Y. Higo
  • Journal Title: American Mineralogist Volume: 96 Issue: 1 Pages: 93-99
  • DOI: 10.2138/am.2011.3628
  • Peer Reviewed
• [Journal Article] Liquidus and solidus temperatures of a Fe-O-S alloy up to the pressures of the outer core : Implication for the thermal structure of the Earth's core (2011)
  • Author(s): Terasaki, H., S.Kamada, T.Sakai, E.Ohtani, N.Hirao, N.Sata, Y.Ohishi
  • Journal Title: Earth and Planetary Science Letters Volume: 304 Issue: 3-4 Pages: 559-564
  • DOI: 10.1016/j.epsl.2011.02.041
  • Peer Reviewed
• [Journal Article] Hydrogenation of FeSi and FeS Alloys at High Pressure and High Temperature (2011)
  • Author(s): 寺崎英紀、柴崎裕樹
  • Journal Title: The Review of High Pressure Science and Technology Volume: 21 Issue: 3 Pages: 197-205
  • DOI: 10.4131/jshpreview.21.197
  • NAID: 10029831676
  • ISSN: 0917-639X, 1348-1940
  • Peer Reviewed
• [Journal Article] Effect of hydrogen on melting temperature of FeS at high pressure : Implications for core of Ganymede (2011)
  • Author(s): Shibazaki, Y., E.Ohtani, H.Terasaki, R.Tateyama, T.Sakamaki, K.Funakoshi
  • Journal Title: Earth and Planetary Science Letters Volume: 301 Issue: 1-2 Pages: 153-158
  • DOI: 10.1016/j.epsl.2010.10.033
  • Peer Reviewed
• [Journal Article] Density measurement of liquid FeS at high pressures using synchrotron X-ray absorption (2011)
  • Author(s): Nishida, et al
  • Journal Title: American Mineralogist Volume: 96 Issue: 5-6 Pages: 864-868
  • DOI: 10.2138/am.2011.3616
  • Peer Reviewed
• [Journal Article] Density of carbonated peridotite magma at high pressure using an X-ray absorption method (2011)
  • Author(s): Sakamaki, T., E.Ohtani, S.Urakawa, H.Terasaki, Y.Katayama
  • Journal Title: American Mineralogist Volume: 96 Issue: 4 Pages: 553-557
  • DOI: 10.2138/am.2011.3577
  • Peer Reviewed
• [Journal Article] Phase and Melting Relationships in the Fe-S System under High Pressures: Application to the Temperature Profile in the Core (2011)
  • Author(s): 鎌田誠司、寺崎英紀、大谷栄治、境毅
  • Journal Title: The Review of High Pressure Science and Technology Volume: 21 Issue: 2 Pages: 77-83
  • DOI: 10.4131/jshpreview.21.77
  • NAID: 10029541367
  • ISSN: 0917-639X, 1348-1940
  • Peer Reviewed
• [Journal Article] Phase stability and compression study of (Fe_<0.89>, Ni_<0.11>)_3S up to pressure of the Earth's core (2011)
  • Author(s): Sakai, T., E.Ohtani, H.Terasaki, S.Kamada, N.Hirao, Y.Ohishi, N.Sata
  • Journal Title: American Mineralogist Volume: 96 Issue: 10 Pages: 1490-1494
  • DOI: 10.2138/am.2011.3822
  • Peer Reviewed
• [Journal Article] Density measurements of liquid Fe-Si alloys at high pressure using the sink-float method (2011)
  • Author(s): Tateyama, et al
  • Journal Title: Physics and Chemistry of Minerals Volume: 38 Issue: 10 Pages: 801-807
  • DOI: 10.1007/s00269-011-0452-1
  • Peer Reviewed
• [Journal Article] 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 (2011)
  • Author(s): Asanuma H., Ohtani E., Sakai T., Terasaki H., Kamada S., Hirao N., Ohishi Y.
  • Journal Title: Earth and Planetary Science Letters Volume: 30 Issue: 1-2 Pages: 113-118
  • DOI: 10.1016/j.epsl.2011.06.034
  • Peer Reviewed
• [Journal Article] X線イメージングを用いた高圧下における鉄合金メルトの密度測定 (2011)
  • Author(s): 西田圭佑、大谷栄治、鈴木昭夫、立山隆二、寺崎英紀、亀卦川卓美
  • Journal Title: KEK Proceedings Volume: 10 Pages: 15-20
• [Journal Article] Compression of Fe88.1Ni9.1S2.8 alloy up to the pressure of Earth's inner core (2011)
  • Author(s): Sakai T., Ohtani E., Kamada S., Terasaki H., Hirao N.
  • Journal Title: Journal of Geophysical Research Volume: 117 Issue: B2 Pages: 7-7
  • DOI: 10.1029/2011jb008745
  • Peer Reviewed
• [Presentation] Measurements on physical properties of liquid alloys under high pressure (2013)
  • Author(s): Terasaki, H.
  • Organizer: Paris-Edinburgh Cell workshop
  • Place of Presentation: Argonne National Laboratory, Argonne, IL, USA
  • Invited
• [Presentation] Sound velocity and density of liquid and solid alloys under pressure (2013)
  • Author(s): Terasaki, H., Nishida, K., Urakawa, S., Uesugi, K., Takubo, Y., Kuwabara, S., Higo, Y., Kono, Y., Kondo, T.
  • Organizer: The 3rd Global-COE international symposium on Deep Earth Mineralogy
  • Place of Presentation: Matsuyama
  • Invited
• [Presentation] Sound velocity and density measurement of Ni-S liquid at high pressure (2013)
  • Author(s): Terasaki, H., Nishida, K., Urakawa, S., Uesugi, K., Takubo, Y., Kuwabara, S., Higo, Y., Kono, Y., Kondo, T.
  • Organizer: Workshop on Approach to the centre of the Earth
  • Place of Presentation: Sendai
• [Presentation] The effect of carbon content on density of liquid Fe-C at high pressure (2013)
  • Author(s): Shimoyama, Y., Terasaki, H., Ohtani, E., Urakawa, S., Takubo, Y., Nishida, K., Suzuki, A., Katayama, Y.
  • Organizer: Workshop on Approach to the centre of the Earth
  • Place of Presentation: Sendai
• [Presentation] Density and thermophysical properties of liquid Fe-O (2013)
  • Author(s): Takubo, Y., Terasaki, H., Shimoyama, Y., Urakawa, S., Nishida, K., Kondo, T., Katayama, Y.
  • Organizer: Workshop on Approach to the centre of the Earth
  • Place of Presentation: Sendai
• [Presentation] Sound velocities of liquid Fe-S and Fe-Si at high pressure (2013)
  • Author(s): Nishida, K., Terasaki, H., Kono, Y., Takahashi, S., Shimoyama, Y., Ushioda, M., Sakurai, M., Kuwabara, S., Higo, Y., Funakoshi, K., Ohtani, E.
  • Organizer: Workshop on Approach to the centre of the Earth
  • Place of Presentation: Sendai
• [Presentation] Sound velocity of liquid iron alloys under Earth's core pressures by laser-shock compression (2013)
  • Author(s): Sakaiya, T., Yokoyama, N., Hosogi, R., Kondo, T., Terasaki, H., Kadono, T., Hironaka, Y, Shigemori, K.
  • Organizer: Workshop on Approach to the centre of the Earth
  • Place of Presentation: Sendai
• [Presentation] Iron alloy-water reaction and light elements in the Earth's core (2013)
  • Author(s): Kondo, T., Yamashita, T., Yoshida, Y., Ishida, Y., Terasaki, H., Kikegawa, T.
  • Organizer: Workshop on Approach to the centre of the Earth
  • Place of Presentation: Sendai
• [Presentation] How much sulfur in the core (2013)
  • Author(s): Kamada, S., Ohtani, E., Terasaki, H., Fukui, H., Baron, A.Q.R., Hirao, N., Ohishi, Y.
  • Organizer: Workshop on Approach to the centre of the Earth
  • Place of Presentation: Sendai
• [Presentation] Sound velocity of FeSi alloy at high pressure conditions by the laser-shock compression (2013)
  • Author(s): Hosogi, R., Sakaiya, T., Yokoyama, N., Kondo, T, Terasaki, H., Hironaka, Y., Shigemori, K.
  • Organizer: Workshop on Approach to the centre of the Earth
  • Place of Presentation: Sendai
• [Presentation] Sound velocity of liquid Fe-Ni-C alloy at high pressure and temperature (2013)
  • Author(s): Kuwabara, S., Nishida, K., Terasaki, H., Funakoshi, K., Higo, Y., Ushioda, M., Sakurai, M., Kondo, T.
  • Organizer: Workshop on Approach to the centre of the Earth
  • Place of Presentation: Sendai
• [Presentation] Development for sound velocity and density measurements of liquid metal at high pressures (2012)
  • Author(s): Terasaki, H., K. Nishida, S. Urakawa, K. Uesugi, Y. Takubo, S. Kuwabara, A. Nakatsuka, M. Hoshino, Y. Kono, Y. Higo, T. Kondo
  • Organizer: American Geophysical Union Fall meeting 2012
  • Place of Presentation: San Francisco
• [Presentation] The Effect of oxygen on density of liquid iron at high pressure (2012)
  • Author(s): Takubo Y., Terasaki H., Shimoyama Y., Urakawa S., Suzuki A., Nishida K., Kamuro R., Kishimoto S., Kondo T., Ohtani E., Katayama Y.
  • Organizer: American Geophysical Union Fall meeting 2012
  • Place of Presentation: San Francisco
• [Presentation] The effect of carbon content on density of liquid Fe-C at high pressure (2012)
  • Author(s): Shimoyama Y., Terasaki H., Ohtani E., Urakawa S., Takubo Y., Nishida K., Suzuki A., Katayama Y.
  • Organizer: American Geophysical Union Fall meeting 2012
  • Place of Presentation: San Francisco
• [Presentation] Phase relations and sound velocity measurements of iron-sulfur systems at high pressure: Implications for the Earth’s core (2012)
  • Author(s): Ohtani E., Kamada S., Sakai T., Terasaki H., Shibazaki Y., Sakamaki T., Takahashi S., Sakairi T., Fukui H., Baron AQ.
  • Organizer: American Geophysical Union Fall meeting 2012
  • Place of Presentation: San Francisco
• [Presentation] Transport of water and hydrogen into the lower mantle and core (2012)
  • Author(s): Ohtani E., Ohira I., Terasaki H.
  • Organizer: American Geophysical Union Fall meeting 2012
  • Place of Presentation: San Francisco
  • Invited
• [Presentation] Permeability of core-forming melt in asteroids based on in situ X-ray tomography (2012)
  • Author(s): Terasaki H., Urakawa S., Uesugi K., Ohtani E.
  • Organizer: G-COE International Symposium “Achievements of G-COE Program for Earth and Planetary Dynamics and the Future Perspective
  • Place of Presentation: Sendai
  • Invited
• [Presentation] The dependence of pressure and temperature on liquid Fe-3.5wt%C density (2012)
  • Author(s): Shimoyama Y., Terasaki H., Ohtani E., Urakawa S., Takubo Y., Nishida K., Suzuki A.
  • Organizer: G-COE International Symposium “Achievements of G-COE Program for Earth and Planetary Dynamics and the Future Perspective
  • Place of Presentation: Sendai
• [Presentation] Effect of sulfur on the sound velocity in liquid iron at high pressure (2012)
  • Author(s): Nishida K., Kono Y., Terasaki H., Takahashi S., Ishii M., Shimoyama Y., Higo Y., Funakoshi K., Irifune T., Ohtani E.
  • Organizer: Joint 2012 COMPRES Annual Meeting and High-Pressure Mineral Physics Seminar-8
  • Place of Presentation: Lake Tahoe, USA
• [Presentation] Dense sulfur rich Fe-S melt: The evolution and structure of the core with Fe-S composition (2012)
  • Author(s): Shibazaki Y., Ohtani E., Terasaki H., Tateyama R., Sakamaki T., Funakoshi K.
  • Organizer: Joint 2012 COMPRES Annual Meeting and High-Pressure Mineral Physics Seminar-8
  • Place of Presentation: Lake Tahoe, USA
• [Presentation] Sound velocity measurements of liquid Fe-S at high pressure (2012)
  • Author(s): Nishida K., Kono Y., Terasaki H., Takahashi S., Ishii M., Shimoyama Y., Higo Y., Funakoshi K., Irifune T., Ohtani E.
  • Organizer: Asia Oceania Geoscience Society (AOGS) &#8211; AGU(WPGM) Joint Assembly
  • Place of Presentation: Singapore
• [Presentation] Stability of high Pressure Hydrous Delta-phase and its Roles under the Lower Mantle Conditions (2012)
  • Author(s): Ohtani E., Ohira I., Sakai T., Terasaki H., Hirao N.
  • Organizer: Asia Oceania Geoscience Society (AOGS) &#8211; AGU(WPGM) Joint Assembly
  • Place of Presentation: Singapore
• [Presentation] 高温高圧下における液体の密度・音速同時測定法の開発 (2012)
  • Author(s): 寺崎英紀、西田圭佑、浦川啓、上杉健太朗、星野真人、田窪勇作、桑原荘馬、近藤忠、河野義生
  • Organizer: 第53回高圧討論会
  • Place of Presentation: 大阪
• [Presentation] 高温高圧下における放射光を用いた複合測定 (2012)
  • Author(s): 近藤忠、寺崎英紀、亀卦川卓美、張小威、中尾裕則
  • Organizer: 第53回高圧討論会
  • Place of Presentation: 大阪
• [Presentation] 超音波法を用いた高圧下における鉄合金メルトの音速測定技術の改良 (2012)
  • Author(s): 西田圭佑、寺崎英紀、河野義生、肥後祐司、大谷栄治
  • Organizer: 第53回高圧討論会
  • Place of Presentation: 大阪
• [Presentation] Dense Sulfur-rich Fe-S-F-H melt: The evolution and structure of Ganymede’s core (2012)
  • Author(s): 柴崎裕樹、大谷栄治、寺崎英紀、立山隆二、坂巻竜也、舟越賢一、肥後祐司、Yingwei Fei
  • Organizer: 第53回高圧討論会
  • Place of Presentation: 大阪
• [Presentation] 高温高圧下におけるFe-Cメルトの密度 (2012)
  • Author(s): 下山裕太、大谷栄治、寺崎英紀、浦川啓、西田圭佑、田窪勇作、中塚明日美、鹿室僚太、横田育美、岸本俊八、鈴木昭夫、片山芳則
  • Organizer: 第53回高圧討論会
  • Place of Presentation: 大阪
• [Presentation] 鉄融体の密度に与える酸素の効果 (2012)
  • Author(s): 田窪勇作、寺崎英紀、下山裕太、浦川啓、鈴木昭夫、西田圭佑、鹿室僚太、岸本俊八、近藤忠、大谷栄治、片山芳則
  • Organizer: 第53回高圧討論会
  • Place of Presentation: 大阪
• [Presentation] 地球深部研究に向けた高圧物性測定の進展 (2012)
  • Author(s): 西原遊、寺崎英紀
  • Organizer: Spring-8シンポジウム2012
  • Place of Presentation: 大阪
• [Presentation] 放射光X線回折法およびスペクトロスコピーを併用した地球中心部の総合的解明 (2012)
  • Author(s): 増野いづみ、大谷栄治、境毅、寺崎英紀、村上元彦、平尾直久、大石泰生
  • Organizer: Spring-8シンポジウム2012
  • Place of Presentation: 大阪
• [Presentation] Hydrogen solubility into Fe-C and Fe-Si alloys at high pressure (2012)
  • Author(s): Terasaki H., Shibazaki Y., Nishida K., Takahashi S., Ishii M., Ohtani E., Higo Y.
  • Organizer: Japan Geoscience Union Meeting 2012
  • Place of Presentation: 千葉
• [Presentation] Density measurement of liquid Fe-C at High pressure and high temperature (2012)
  • Author(s): Shimoyama Y., Ohtani E., Terasaki H., Urakawa S., Nishida K., Takubo Y., Nakatsuka A., Kamuro R., Yokota I., Kishimoto S., Katayama Y.
  • Organizer: Japan Geoscience Union Meeting 2012
  • Place of Presentation: 千葉
• [Presentation] Sound velocity measurements of liquid Fe-S t high pressure: Implications for the Earth’s and lunar cores (2012)
  • Author(s): Nishida K., Kono Y., Terasaki H., TakahashiS., Ishii M., Shimoyama Y., Higo Y., Funakoshi K., Irihune T., Ohtani E.
  • Organizer: Japan Geoscience Union Meeting 2012
  • Place of Presentation: 千葉
• [Presentation] Density measurement of liquid Fe-O at high pressure and high temperature using an X-ray absorption method (2012)
  • Author(s): Takubo Y., Shimoyama Y., Terasaki H., Urakawa S., Nishida K., Kamuro R., Kishimoto S., Kondo T., Ohtani E., Katayama Y.
  • Organizer: Japan Geoscience Union Meeting 2012
  • Place of Presentation: 千葉
• [Presentation] Experimental constraints on the size of Martian liquid core (2012)
  • Author(s): Nakatsuka, A., Urakawa, S., Terasaki, H., Nishida, K., Uesugi, K., Funakoshi, K.
  • Organizer: Japan Geoscience Union Meeting 2012
  • Place of Presentation: 千葉
• [Presentation] Neutron Camera Installed in BL11 ”PLANET” Beamline in J-PARC (2012)
  • Author(s): Inoue, T., Arima, H., Terasaki, H., Hattori, T., Sano, A
  • Organizer: Japan Geoscience Union Meeting 2012
  • Place of Presentation: 千葉
• [Presentation] The effect of light elements on Earth's core properties (2012)
  • Author(s): Sakai T, Takahashi S., Shibazaki Y., Kamada S., Terasaki H., Ohtani E.
  • Organizer: 9th International Workshop on Water Dynamics
  • Place of Presentation: Sendai International center, Miyagi
• [Presentation] Droplet size of liquid Fe-alloy in terrestrial magma ocean (2012)
  • Author(s): Terasaki H., Urakawa S., Rubie DC., Funakoshi K., Sakamaki T., Shibazaki Y., Ozawa S., Ohtani E.
  • Organizer: Joint symposium of Misasa-2012 and Geofluid-2
  • Place of Presentation: Blanc Art Misasa, Tottori(招待講演)
• [Presentation] Sulfur content in the core (2012)
  • Author(s): Sakai T., Ohtani E., Terasaki H., Kamada S., Hirao N.
  • Organizer: Joint symposium of Misasa-2012 and Geofluid-2
  • Place of Presentation: Blanc Art Misasa, Tottori(招待講演)
• [Presentation] Melting relation of Fe-O-S ally at the outer core condition (2011)
  • Author(s): Terasaki H., Kamada S., Sakai T., Ohtani E., Hirao N., Ohishi Y.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Pressure effect on excess molar volume of liquid Fe-S (2011)
  • Author(s): Nishida K., Ohtani E., Terasaki H., Tateyama R., Shibazaki Y., Suzuki A., Kikegawa T.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Density measurement of liquid Fe-Si using X-ray absorption method (2011)
  • Author(s): Tateyama R., Nishida K., Terasaki H., Urakawa S., Nakatsuka A., Ohtani E., Katayama Y.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Density measurement of liquid Fe-C at high pressure and Implication for Earth's Outer core (2011)
  • Author(s): Shimoyama Y., Ohtani E., Terasaki H., Nishida K.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Phase relation of C-Mg-Fe-Si-O system under various oxygen fugacity conditions : Implication for planetary interior (2011)
  • Author(s): Takahashi S., Ohtani E., Terasaki H., Ito Y., Funakoshi K., Higo Y.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Density and structure of molten iron under pressure (2011)
  • Author(s): Urakawa S., Nakatsuka A., Terasaki H., Nishida K., Tateyama R., Ohtani E., Katayama Y., Watanabe T., Kikegawa T.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] X線マイクロトモグラフィを用いた吸収法による高圧密度測定技術の開発 (2011)
  • Author(s): Nakatsuka A., Urakawa S., Terasaki H., Funakoshi K., Uesugi K.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Magma studies towards pulse neutron utility (2011)
  • Author(s): Inoue T., Urakawa S., Ohtaka O., Suzuki A., Mibe K., Terasaki H., Yamada A., Arima H.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Partitioning behavior of U and Th between metal and silicate at the Mercury's core mantle boundary (2011)
  • Author(s): Ishii M., Ohtani E., Kimura J., Terasaki H.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Sound velocities of Fe3S at high pressures using inelastic X-ray scattering (2011)
  • Author(s): Kamada S., Fukui H., Ohtani E., Sakai T., Shibazaki Y., Terasaki H., Baron A.Q.R., Ohishi Y., Hirao N.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Carbon in Planetary cores (2011)
  • Author(s): Ohtani E., Takahashi S., Shimoyama Y., Terasaki H., Suzuki A.
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] X線イメージングを用いた高圧下における鉄合金メルトの密度測定 (2011)
  • Author(s): 西田圭佑、大谷栄治、鈴木昭夫、立山隆二、寺崎英紀、亀卦川卓美
  • Organizer: PF研究会「放射光高圧研究における実験技術の新展開II-マルチアンビル型高圧装置を中心に-」
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] (Fe, Ni)_3S相の安定性と圧縮挙動 (2011)
  • Author(s): 境毅, 大谷栄治, 寺崎英紀, 鎌田誠司, 平尾直久
  • Organizer: 日本地質学会第118年学術大会・日本鉱物科学会2011年年会合同学術大会
  • Place of Presentation: 茨城大学、茨城
• [Presentation] 高圧X線マイクロCTを用いた吸収密度測定 (2011)
  • Author(s): 中塚明日美, 浦川啓, 寺崎英紀, 舟越賢一, 上杉健太朗
  • Organizer: 日本地質学会第118年学術大会・日本鉱物科学会2011年年会合同学術大会
  • Place of Presentation: 茨城大学、茨城
• [Presentation] Sound velocities of Fe_3S up to 85 GPa at room temperature using inelastic X-ray scattering (2011)
  • Author(s): Kamada S., Fukui H., Ohtani E., Sakai T., Terasaki H., Shibazaki Y., Takahashi S., Baron Alfred Q.R., Ohishi Y., Hirao N.
  • Organizer: GSA Annual meeting
  • Place of Presentation: Minneapolis, USA(招待講演)
• [Presentation] Fate of water in the deep Earth interior (2011)
  • Author(s): Terasaki H.
  • Organizer: 日独先端科学シンポジウム
  • Place of Presentation: ホテルニューオータニ、東京
• [Presentation] 高温高圧CT測定によるFe-Ni-S融体の浸透特性に対する圧力・組成の効果 (2011)
  • Author(s): 寺崎英紀, 浦川啓, 上杉健太朗, 中塚明日美, 舟越賢一, 大谷栄治
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院、沖縄
• [Presentation] Fe-Sメルトの弾性波速度の圧力依存性 (2011)
  • Author(s): 西田圭佑, 河野義生, 寺崎英紀, 高橋豪, 石井美帆, 下山裕太, 境家達弘, 肥後祐司, 舟越賢一, 大谷栄治, 入船徹男
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院、沖縄
• [Presentation] 超音波法を用いた高圧下におけるFe-Sメルトの弾性波速度測定技術の開発 (2011)
  • Author(s): 西田圭佑, 河野義生, 寺崎英紀, 高橋豪, 石井美帆, 下山裕太, 境家達弘, 肥後祐司, 舟越賢一, 大谷栄治, 入船徹男
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院、沖縄
• [Presentation] 水星核-マントル境界条件におけるUおよびThの金属/珪酸塩間の分配挙動 (2011)
  • Author(s): 石井美帆, 大谷栄治, 寺崎英紀, 西田圭佑, 高橋豪, 下山裕太, 境家達弘, 木村純一, 舟越賢一, 肥後祐司
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 沖縄キリスト教学院、沖縄
• [Presentation] 微惑星および地球型惑星の核/マントル分化過程 (2011)
  • Author(s): 寺崎英紀
  • Organizer: 第4回アストロバイオロジーネットワークワークショップ
  • Place of Presentation: 神戸大学、兵庫(招待講演)
• [Presentation] Boundary pressure of inter-connection of Fe-Ni-S melt in olivine based on in-situ X-ray tomography : Implication to core formation in asteroids (2011)
  • Author(s): Terasaki H., Urakawa S., Uesugi K., Nakatsuka A., Funakoshi K., Ohtani E.
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Phase relation of C-Mg-Si-O system under various oxygen fugacity conditions by in situ X-ray diffraction experiments : Implication for planetary interior (2011)
  • Author(s): Takahashi S., Ohtani E., Terasaki H., Ito Y., Funakoshi K., Higo Y.
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Melting and solid-melt partitioning in iron-light element systems under megabar conditions : Implications for the thermal state of the core (2011)
  • Author(s): Ohtani E., Kamada S., Sakai T., Terasaki H., Hayashi H.
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Melting relationships in the Fe-Fe3S system based on X-ray diffraction up to 180 GPa (2011)
  • Author(s): Kamada S., Ohtani E., Terasaki H., Sakai T., Ohishi Y., Hirao N., Miyahara M.
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA(招待講演)
• [Presentation] Structure of pure liquid Fe at high pressure based on in-situ X-ray observation (2011)
  • Author(s): Urakawa S., Nakatsuka A., Terasaki H., Nishida K., Katayama Y., Watanabe T., Kikegawa T., Ohtani E.
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Compressional velocities of Fe3S at room temperature and high pressures using inelastic X-ray scattering (2011)
  • Author(s): Kamada S., Fukui H., Ohtani E., Sakai T., Terasaki H., Baron A.Q., Ohishi Y., Hirao N.
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Sound velocity and density measurement of alloy liquid under pressure
  • Author(s): 寺崎 英紀, 西田 圭佑, 浦川 啓, 上杉 健太朗, 田窪 勇作, 桑原 荘馬, 肥後 祐司, 河野 義生, 近藤 忠
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Sound velocity of liquid Fe-Ni-C alloy at high pressure and temperature
  • Author(s): 桑原 荘馬, 西田 圭佑, 寺崎 英紀, 舟越 賢一, 肥後 祐司, 潮田 雅司, 櫻井 萌, 近藤 忠
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Basaltic magmas at high pressures and the origin of the lithosphere-asthenosphere boundary
  • Author(s): Sakamaki T., Suzuki A., Ohtani E., Terasaki H., Urakawa S., Katayama Y., Funakoshi K., Wang Y., Hernlund J., Ballmer M.
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Amount of sulfur in the inner core based on sound velocities and EOS of Fe3S at high pressure
  • Author(s): Kamada S., Ohtani E., Terasaki H., Sakai T., Fukui H., Takahashi S., Baron A., Hirao N., Ohishi Y.
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] The effect of carbon on density and elastic property of liquid Fe-C under high pressure
  • Author(s): Shimoyama Y., Terasaki H., Ohtani E., Urakawa S., Takubo Y., Nishida K., Suzuki A., Katayama Y.
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Sound velocity measurements of liquid Fe-S and Fe0Si at high pressure
  • Author(s): Nishida K., Terasaki H., Ushioda M., Sakurai M., Kuwabara S., Higo Y., Funakoshi K., Ohtani E.
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] J-PARC, PLANETにおける無水及び含水アルバイトガラスの高圧下中性子回折実験と中性子イメージング予備実験
  • Author(s): 井上徹，山田明寛，浦川啓，鈴木昭夫，有馬寛，寺崎英紀，大高理，服部高典，佐野亜沙美
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] High pressure neutron diffraction of anhydrous and hydrous albite glasses and preliminary neutron imaging in PLANET
  • Author(s): 井上 徹, 山田 明寛, 浦川 啓, 鈴木 昭夫, 有馬 寛, 寺崎 英紀, 大高 理, 服部 高典, 佐野 亜沙美
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Hydrogen in the core under the co-existence of sulfur and oxygen
  • Author(s): 山下智也, 近藤 忠, 寺崎 英紀, 亀卦川卓美
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Sound velocity measurements for iron alloys at Earth core pressures and universal relations between solid and liquid
  • Author(s): 境家 達弘, 横山 直也, 細木 亮太, 近藤 忠, 境家 達弘, 横山 直也, 細木 亮太, 近藤 忠, 寺崎 英紀, 重森 啓介, 弘中 陽一郎
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] Sound velocity and density measurements of FeSi alloy by laser-shock compression
  • Author(s): 細木亮太、横山直也、境家 達弘, 近藤 忠, 寺崎 英紀, 弘中 陽一郎, 重森 啓介
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ、千葉
• [Presentation] The effect of pressure and temperature on sound velocity and density of Ni-S liquid
  • Author(s): Terasaki, H., K. Nishida, S. Urakawa, K. Uesugi, S. Kuwabara, Y. Takubo, Y. Shimoyama, A. Takeuchi, Y. Suzuki, Y. Kono, Y. Higo, T. Kondo,
  • Organizer: American Geophysical Union Fall meeting 2013
  • Place of Presentation: Moscone South, San Francisco, USA
• [Presentation] The effect of carbon on sound velocity of liquid Fe under high pressure
  • Author(s): Kuwabara, S., H. Terasaki, K. Nishida, M. Sakurai, Y. Shimoyama, M. Ushioda, Y. Higo, K. Funakoshi, T. Kondo
  • Organizer: American Geophysical Union Fall meeting 2013
  • Place of Presentation: Moscone South, San Francisco、USA
• [Presentation] Vp and EOS of Fe3S
  • Author(s): Kamada S., Ohtani E., Fukui H., Sakai T., Terasaki H., Shibazaki Y., Tsutsui S., Baron A. Q. R., Hirao N., Ohishi Y.
  • Organizer: Workshop on Elasticity and Iron
  • Place of Presentation: ホテル若松, 兵庫
• [Presentation] 高温高圧下におけるFe-Oメルトの熱弾性特性
  • Author(s): 田窪勇作、寺崎英紀、下山裕太、浦川啓、桑原荘馬、鈴木昭夫、西田圭佑、岡本美宝、近藤忠、片山芳則
  • Organizer: 第54回高圧討論会
  • Place of Presentation: 新潟コンベンションセンター、新潟
• [Presentation] Fe-C系融体の組成依存性と外核への適用
  • Author(s): 下山裕太、寺崎英紀、浦川啓、西田圭佑、田窪勇作、鈴木昭夫、近藤忠、大谷栄治、片山芳則
  • Organizer: 第54回高圧討論会
  • Place of Presentation: 新潟コンベンションセンター、新潟
• [Presentation] 高圧下におけるFe-FeS系およびFe-Si系融体の音速測定
  • Author(s): 西田圭佑、寺崎英紀、櫻井萌、桑原荘馬、潮田雅司、下山裕太、肥後祐司
  • Organizer: 第54回高圧討論会
  • Place of Presentation: 新潟コンベンションセンター、新潟
• [Presentation] 液体合金の密度と音速測定
  • Author(s): 寺崎英紀
  • Organizer: SPRUC拡大研究会・SPring-8利用ワークショップ
  • Place of Presentation: SPring-8, 兵庫
  • Invited
• [Presentation] 鉄-軽元素系合金への水素固溶の探索
  • Author(s): 寺崎英紀、柴崎裕樹
  • Organizer: 日本鉄鋼協会第167回春期講演大会
  • Place of Presentation: 東京工業大学, 東京