| 297 K和0.13～1 GPa压力下菱镁矿的拉曼光谱实验研究 |
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| 引用本文： | 王宇,郑海飞.297 K和0.13～1 GPa压力下菱镁矿的拉曼光谱实验研究[J].光谱学与光谱分析,2005,25(9):1426-1428. |
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| 作者姓名： | 王宇 郑海飞 |
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| 作者单位： | 北京大学造山带与地壳演化教育部重点实验室,北京大学地质学系,北京,100871 |
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| 基金项目： | 国家自然科学基金重大项目，国家自然科学基金(10299040,40173019)资助项目 |
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| 摘 要： | 在T=297K,130MPa
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| 关 键 词： | 高压 菱镁矿 拉曼光谱 压力计 |
| 文章编号： | 1000-0593(2005)09-1426-03 |
| 收稿时间： | 04 18 2004 12:00AM |
| 修稿时间： | 08 6 2004 12:00AM |
Experimental Study of Raman Spectra of Magnesite at 297 K and at the Pressure of 0.13-1 GPa |
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| WANG Yu,ZHENG Hai-fei.Experimental Study of Raman Spectra of Magnesite at 297 K and at the Pressure of 0.13-1 GPa[J].Spectroscopy and Spectral Analysis,2005,25(9):1426-1428. |
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| Authors: | WANG Yu ZHENG Hai-fei |
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| Institution: | Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, Department of Geology, Peking University, Beijing 100871, China. |
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| Abstract: | The experimental study of Raman spectra of magnesite has been conducted at the pressure of 967 MPa and at the temperatureof 297 K using a cubic zirconia-anvil cell. The result shows that neither phase transition nor organic substances were observed during compression, and the Raman peak of magnesite shifted to higher frequency with increasing pressure. The relation between the pressure and the Raman peak position of magnesite (1094 cm(-1)) was obtained as follows: v (cm(-1)) = 0.007 44 x P(MPa) + 1 093.3. The value of dv/dP of magnesite is greater than the previous data obtained by Gillet, which was mostly taken under the mantle pressure. And at the ambient temperature, magnesite can be used as a pressure gauge, and the relation between the pressure and Raman shift of 1 094 cm(-1) peak position is given as following: P(MPa) = 125.8 x (deltavp) 1094 + 124.7 (1094 cm(-1) < vp < 1101 cm(-1)). |
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| Keywords: | High pressure Magnesite Raman spectra Pressure gauge |
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