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| 橄榄石流体包裹体中分子水的发现 | |
| 引用本文： | 邵济安,韩庆军.橄榄石流体包裹体中分子水的发现[J].岩石学报,2000,16(1):127-133. |
| 作者姓名： | 邵济安 韩庆军 |
| 作者单位： | 1. 北京大学,北京,100871 2. 中国科学院地质与地球物理研究所,北京,100029 3. 西安地质矿产研究所,西安,710054 |
| 基金项目： | 国家自然科学基金! ( 496 72 15 6和 49872 0 79) |
| 摘 要： | 利用激光拉曼和红外光谱测定了内蒙古东部喀喇沁地区玻基橄辉岩橄榄石斑晶中的原生流体包裹体的成分，发现了波长分别为３２４５～３５６５ｃｍ＾－１的液态水和波长为３６２７的ｃｍ＾－１气态水的特征峰，而未发现结构水的特征峰，橄榄石的惰性气体同位素测定结果表明包裹休事的水来源于地幔岩浆，而非混染陆壳水。这一发现，揭示了地幔水可以以流体包裹体的形成赋存在火山岩的矿物斑晶中。 |
| 关 键 词： | 内蒙古 橄榄石 流体包裹体 分子水 |
| 修稿时间： | 1999-11-15 |
Discovery of molecular water in fluid inclusions of olivine |
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| Shao Ji''an,Zang Qiji,Han Qingjun,Zhang Shulin,Li Hongdong and Wang Zhihai..Discovery of molecular water in fluid inclusions of olivine[J].Acta Petrologica Sinica,2000,16(1):127-133. | |
| Authors: | Shao Ji'an Zang Qiji Han Qingjun Zhang Shulin Li Hongdong and Wang Zhihai |
| Abstract: | Fourier transform infrared spectrophotometer, laser Raman spectrophotometer and laser Raman Microprobe have been used to detect composition of fluid inclusions in olivine phenocrysts in limburgite from Harkin area in eastern Inner Mongolia, China. The IR and laser Raman spectra show strong absorption bands of molecular water at 3245~3565cm -1 , and band of water vapor at 3627cm -1 . The spectrum of hydroxyl (OH) was not observed. Analysis of inert gases isotope compositions suggests that the water in the fluid inclusions is derived from mantle magma source instead of contaminated crust. The discovery reveals a new site for the mantle derived water. |
| Keywords: | Inner Mongolia Olivine Fluid inclusion Molecular water |
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