2012 Fiscal Year Final Research Report
Incorporation mechanism of hydrogen into some minerals and its dynamical behavior at high pressure
| Project Area | Earth Science Based on the High Pressure and Temperature Neutron Experiments |
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| Project/Area Number |
20103002
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
NAGAI Takaya 北海道大学, 大学院・理学研究院, 教授 (20243131)
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| Co-Investigator(Kenkyū-buntansha) |
AKASAKA Masahide 島根大学, 総合理工学研究科, 教授 (20202509)
KURIBAYASHI Takahiro 東北大学, 大学院・理学研究科, 助教 (20302086)
NFUKAZAWA Hiroshi 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 主任研究員 (30370464)
SANO Asami 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究員 (30547104)
UTSUMI Wataru 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究推進室長 (60193918)
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| Project Period (FY) |
2008 – 2012
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| Keywords | 含水鉱物 / 氷 / 結晶構造 / 高温高圧 / 水素結合 / 中性子回折 |
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| Research Abstract |
More and more application of neutron diffraction technique is expected in the field of mineral physics in the near future. Crystallographic information about hydrogen positions in some important hydrous minerals was successfully obtained in quite wide range of pressure-temperature conditions. These could give some new insights of hydrogen positions in some mantle minerals, a pressure-induced hydrogen-bond symmetrization mechanism, the relationship between specific thermal expansion and dynamical behavior of hydrogen atoms, and the relationship between cationic substitution and hydrogen positions in some crustal minerals.
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