| Project/Area Number |
23540558
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Okayama University |
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Principal Investigator |
TOMIOKA Naotaka 岡山大学, 地球物質科学研究センター, 准教授 (30335418)
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| Co-Investigator(Kenkyū-buntansha) |
OKUCHI Takuo 岡山大学, 地球物質科学研究センター, 准教授 (40303599)
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| Co-Investigator(Renkei-kenkyūsha) |
YONEDA Akira 岡山大学, 地球物質科学研究センター, 准教授 (10262841)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | ラマン分光 / ダイヤモンドアンビルセル / 圧力誘起非晶質化 / 水素拡散 / 含水ケイ酸塩高圧相 / パルス中性子回折 / 結晶構造解析 / リートベルト法 / 中性子線回折 / 水素同位体 / ダイヤモンドアンビル / 高温高圧実験 / ブルーサイト |
|---|
| Research Abstract |
In the present study, a laser spectrometer system for pressure determination in a diamond anvil cell by the ruby fluorescence method was developed to be a micro-Raman spectrometer with high-spatial resolution. Although further improvement to reduce high background level caused by stray lights is required, the Raman system enabled 1) evaluation of pressure-induced amorphization in K-feldspar and Na-plagioclase, 2) determination of H-D interdiffusion coefficients in brucite under high pressures and temperatures, and 3) phase identification and evaluation of homogeneity of hydrogen isotopes in dense hydrous magnesium silicates for pulsed-neutron diffraction studies.
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