Structure measurement of hydrous magma using neutron diffraction: Understanding of pressure dependences of hydrogen position
Project/Area Number |
17K18797
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Research Field |
Earth and planetary science and related fields
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Research Institution | Tohoku University |
Principal Investigator |
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Project Period (FY) |
2017-06-30 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
Keywords | マグマ / 水 / 水素 / 高圧 / 高温 / 中性子回折 / X線回折 / ガラス / 構造 / 高密度化 |
Outline of Final Research Achievements |
We succeeded in measuring the structure of hydrous magma at high pressure and temperature using X-ray and neutron diffraction techniques. One of the most important findings in this study is the pressure-induced anomalous change in the ordering of network structure: the periodicity of network structure of the hydrous magma extends up to 4 GPa and starts to shrink at much higher pressure. Since the structure of magma changes drastically around 4 GPa (120 km in depth), the behavior of the magma can be also varied. We can obtain a significant knowledge for understanding the magma behavior in the interior of the Earth.
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Academic Significance and Societal Importance of the Research Achievements |
マグマは、火山や中央海嶺から地表へ噴出するものに加え、地下数百~数千kmの地球深部に局所的に存在するということが、主に地球物理学的探査から示唆されてきた。このような地球深部マグマの挙動を、その構造を研究することで解明することに成功した。本研究成果は、我が国とも関わり合いの深い火成活動を中心としたマグマに関連する諸現象を理解するための新たな基礎的知見をもたらしたという重大な意義を持つ。
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Report
(4 results)
Research Products
(92 results)
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[Journal Article] Sound velocity measurements of ε–FeOOH up to 24 GPa2019
Author(s)
Ikeda, O., Sakamaki, T., Ohashi, T., Goto, M., Higo, Y., and Suzuki, A.
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Journal Title
Journal of Mineralogical and Petrological Sciences
Volume: 114
Issue: 3
Pages: 155-160
DOI
NAID
ISSN
1345-6296, 1349-3825
Related Report
Peer Reviewed / Open Access
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[Journal Article] Pressure and composition effects on sound velocity and density of core-forming liquids: Implication to core compositions of terrestrial planets2019
Author(s)
H. Terasaki, A. Rivoldini, Y. Shimoyama, K. Nishida, S. Urakawa, M. Maki, F. Kurokawa, Y. Takubo, Y. Shibazaki, T. Sakamaki, A. Machida, Y. Higo, K. Uesugi, A. Takeuchi, T. Watanuki, T. Kondo
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Journal Title
Journal of Geophysical Research
Volume: 124
Issue: 8
Pages: 2272-2293
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Phase and melting relations of Fe3C to 300 GPa and carbon in the core2019
Author(s)
Takahashi, S., Ohtani, E., Sakai, T., Kamada, S., Ozawa, S., Sakamaki, T., Miyahara, M., Ito, Y., Hirao, N., Ohishi, Y.
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Journal Title
Carbon in Earth’s Interior, Geophysical Monograph
Volume: 249
Pages: 25-36
Related Report
Peer Reviewed
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[Journal Article] Sound velocity of Fe3C at high pressure and high temperature determined by inelastic X-ray scattering2019
Author(s)
Takahashi, S., Ohtani, E., Sakamaki, T., Kamada, S., Fukui, H., Tsutsui, S., Uchiyama, H., Ishikawa, D., Hirao, N., Ohishi, Y., Baron, A.Q.R.
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Journal Title
Comptes Rendus Geoscience
Volume: -
Related Report
Peer Reviewed / Open Access
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[Presentation] High-pressure structural investigations for hydrous sodium silicate melts2019
Author(s)
Ohashi, T., Sakamaki, T., Funakoshi, K., Muranushi, M., Shito, C., Shibazaki, Y., Suzuki, A.
Organizer
Japan Geoscience Union Meeting 2019
Related Report
Int'l Joint Research
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[Presentation] Elastic property and stracture of pyrope glass at high pressure2019
Author(s)
Hisano, N., Sakamaki, T., Ohashi, T., Funakoshi, K., Higo, Y., Shibazaki, Y., Suzuki, A.
Organizer
Japan Geoscience Union Meeting 2019
Related Report
Int'l Joint Research
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[Presentation] High-pressure structures of hydrous sodium silicate melts2019
Author(s)
Ohashi, T., Sakamaki, T., Funakoshi, K., Muranushi, M., Shito, C., Shibazaki, Y., Suzuki, A.
Organizer
JSPS Japan-German graduate externship International Workshop on “Volatile Cycles”
Related Report
Int'l Joint Research
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[Presentation] Structures of dry and hydrous silicate glasses and melts under pressure2019
Author(s)
Ohashi, T., Sakamaki, T., Funakoshi, K., Hattori, T., Muranushi, M., Shito, C., Shibazaki, Y., Sano-Furukawa, A., Suzuki, A.
Organizer
The 10th workshop for extreme materials science “Silicate Melts and Glass”
Related Report
Int'l Joint Research / Invited
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[Presentation] Structures of hydrous sodium silicate melts under high pressure and high temperature2019
Author(s)
Ohashi, T., Sakamaki, T., Funakoshi, K., Muranushi, M., Shito, C., Shibazaki, Y., Suzuki, A.
Organizer
Joint symposium of Misasa 2019 & Core-Mantle Coevolution
Related Report
Int'l Joint Research
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[Presentation] Elastic wave velocity of Fe-Si alloy at high pressure2018
Author(s)
Sakamaki, T., Terasaki, H., Shibazaki, Y., Tobe, H., Shimoyama, Y., Higo, Y., Suzuki, A.
Organizer
Japan Geoscience Union Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Understanding of low velocity anomaly in the asthenosphere inferred from elastic wave velocity measurement of partially molten rocks2018
Author(s)
Ohashi, T., Sakamaki, T., Hisano, N., Higo, Y., Shibazaki, Y., Suzuki, A.
Organizer
Japan Geoscience Union Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Correlation between structure and elastic wave velocity of pyrope glass at high pressure2018
Author(s)
Hisano, N., Sakamaki, T., Ohashi, T., Funakoshi, K., Higo, Y., Shibazaki, Y., Suzuki, A.
Organizer
Japan Geoscience Union Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Structural investigations of basaltic glass under high pressure using X-ray and neutron diffraction techniques2018
Author(s)
Ohashi, T., Sakamaki, T., Hattori, T., Sano, A., Funakoshi, K., Suzuki, A.
Organizer
Japan Geoscience Union Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Compressional velocity of hcp Fe-Si alloy by inelastic X-ray scattering and composition of the inner core2018
Author(s)
Ohtani, E., Sakairi, T., Sakamaki, T., Fukui, H., Kamada, S., Tsutsui, S., Uchiyama, H., Baron, A.Q.R.
Organizer
Japan Geoscience Union Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Sound velocity of liquid Fe-Ni-S-Si at mercury outer core condition2018
Author(s)
Yamada, I., Terasaki, H., Kamiya, A., Nishida, K., Sakamaki, T., Higo, Y., Tange, Y., Kondo, T.
Organizer
Japan Geoscience Union Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Core composition of Mercury estimated from elastic properties of liquid Fe-Ni-alloy2018
Author(s)
Terasaki, H., Rivoldini, A., Shimoyama, Y., Nishida, K., Urakawa, S., Kurokawa, F., Takubo, Y., Shibazaki, Y., Sakamaki, T., Machida, A., Higo, Y., Tange, Y., Kondo, T.
Organizer
Japan Geoscience Union Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Stability of MgCO3 in Fe-rich hydrous lower mantle2018
Author(s)
Maeda, F., Kamada, S., Miyajima, N., Petitgiard, S., Hirao, N., McCammon, C., Frost, D., Sakamaki, T., Suzuki, A.
Organizer
Earth, Sea and Sky III: International Joint Graduate Program Workshop in Earth and Environmental Sciences
Related Report
Int'l Joint Research
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[Presentation] Structure of basaltic glass under high pressure by in-situ x-ray and neutron diffraction investigations2018
Author(s)
Ohashi, T., Sakamaki, T., Hattori, T., Sano, A., Funakoshi, K., Suzuki, A.
Organizer
Earth, Sea and Sky III: International Joint Graduate Program Workshop in Earth and Environmental Sciences
Related Report
Int'l Joint Research
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[Presentation] Reaction of MgCO3 high-pressure carbonate and metallic iron in the deep lower mantle2018
Author(s)
Maeda, F., Kamada, S., Miyajima, N., Petitgiard, S., Hirao, N., Sakamaki, T., McCammon, C., Frost, D., Ohishi, Y., Suzuki, A.
Organizer
56th EHPRG meeting
Related Report
Int'l Joint Research
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[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 2017
Related Report
Int'l Joint Research
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[Presentation] Phase relations in the Fe-FeSi system at 10 GPa : Implications for Mercury’s core2017
Author(s)
Tobe, H., Shibazaki, Y., Sakamaki, T., Hiroi, Y., Abe, R., Suzuki, A.
Organizer
JpGU-AGU Joint Meeting 2017
Related Report
Int'l Joint Research
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[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 2017
Related Report
Int'l Joint Research
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[Presentation] Phase relation in MgCO3-SiO2 system up to the lowermost mantle2017
Author(s)
Maeda, F., Ohtani, E., Kamada, S., Sakamaki, T., Hirao, N., Ohishi, Y.
Organizer
JpGU-AGU Joint Meeting 2017
Related Report
Int'l Joint Research
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[Presentation] High-pressure phase transitions of MgCO3 under the lower mantle conditions2017
Author(s)
Maeda, F., Kamada, S., Sakamaki, T., Hirao, N., Ohishi, Y., Suzuki, A.
Organizer
JpGU-AGU Joint Meeting 2017
Related Report
Int'l Joint Research
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[Presentation] Interior structure of Mars estimated from elastic properties of liquid Fe-Ni-S2017
Author(s)
Terasaki, H., Shimoyama, Y., Maki, M., Kurokawa, F., Urakawa, S., Nishida, K., Saito, R., Takubo, Y., Shibazaki, Y., Sakamaki, T., Machida, A., Higo, Y., Kondo, T.
Organizer
JpGU-AGU Joint Meeting 2017
Related Report
Int'l Joint Research
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[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., Barao, A.Q.R.
Organizer
Goldschmidt 2017
Related Report
Int'l Joint Research
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[Presentation] Phase relations of MgCO3 high-pressure carbonate under the lower mantle conditions2017
Author(s)
Maeda, F., Kamada, S., Sakamaki, T., Miyajima, N., Hirao, N., Ohishi, Y., Suzuki, A.
Organizer
55th EHPRG Meeting
Related Report
Int'l Joint Research
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[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
High-Pressure Mineral Physics Seminar
Related Report
Int'l Joint Research
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[Presentation] Compressibility of MgCO3 phase II under the lowermost mantle conditions2017
Author(s)
Maeda, F., Kamada, S., Sakamaki, T., Hirao, N., Ohishi, Y., Suzuki, A.
Organizer
High-Pressure Mineral Physics Seminar
Related Report
Int'l Joint Research
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[Presentation] Sound velocity and elastic properties of liquid Fe-Ni-Si at high pressure2017
Author(s)
Terasaki, H., Maki, M., Shimoyama, Y., Nishida, K., Urakawa, S., Takubo, Y., Shibazaki, Y., Sakamaki, T., Higo, Y., Machida, A., Kondo, T.
Organizer
High-Pressure Mineral Physics Seminar
Related Report
Int'l Joint Research
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[Presentation] Structure measurements of basaltic glass at high pressure using X-ray and neutron diffraction techniques2017
Author(s)
Ohashi, T., Sakamaki, T., Hattori, T., Sano-Furukawa, A., Funakoshi, K., Suzuki, A.
Organizer
The 5th Workshop for Extreme Materials Science “Silicate Melt/Glass”
Related Report
Int'l Joint Research
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[Presentation] Structures of basaltic glass under high pressure by in-situ X-ray and neutron diffraction investigations2017
Author(s)
Ohashi, T., Sakamaki, T., Hattori, T., Sano-Furukawa, A., Funakoshi, K., Suzuki, A.
Organizer
Interaction and Coevolution of the Core and Mantle Toward Integrated Deep Earth Science Internarional Symposium Annual General Meeting
Related Report
Int'l Joint Research
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