| Project/Area Number |
23244104
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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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 |
KANZAKI Masami 岡山大学, 地球物質科学研究センター, 教授 (90234153)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥43,030,000 (Direct Cost: ¥33,100,000、Indirect Cost: ¥9,930,000)
Fiscal Year 2013: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2011: ¥31,850,000 (Direct Cost: ¥24,500,000、Indirect Cost: ¥7,350,000)
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| Keywords | geofluid / chemical analysis / in-situ / LIBS / diamond anvil cell / plasma / spectroscopy / pulse laser / 高温高圧 / 流体 / その場観察 / レーザー誘起プラズマ / ダイヤモンドアンビル / ブレークダウン分光法 / 地殻流体 / マグマ / プラズマ発光分光 / 高圧その場測定 / 元素分配 / 化学分析 / 分光 / その場測定 / 高温高圧実験 |
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| Research Abstract |
Slab-derived fluids can contain substantial amounts of silicate components, but it is difficult to quench such fluids, and its composition can not be determined precisely. In this study, I proposed a novel in-situ method for chemical analysis of fluid under high pressure and temperature conditions. In this method, pulsed laser beam is focused in small area of sample within diamond anvil cell (DAC). Plasma will be produced, and then plasma cools down to form neutral atoms. Then characteristic wavelength light inherent to atoms will be emitted. By analyzing this light, we can determine chemical composition of the fluid in DAC.
To evaluate this proposed method, externally-heated DAC, monochrometer, gated-intensifier and CCD detector, and pico-second laser are introduced, So far, high-pressure and temperature fluids have been produced using externally heated DAC, but laser induced plasma light in DAC has not been detected yet.
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