| 橄榄石水溶性与含铁量相关性的实验研究 |
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| 引用本文： | 赵永红 Ginsb.,S 等.橄榄石水溶性与含铁量相关性的实验研究[J].岩石学报,2001,17(1):123-128. |
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| 作者姓名： | 赵永红 Ginsb. S |
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| 作者单位： | 1. 北京大学地球物理学系,Department of Geology and Geophysics, University of Minnesota, MN55455, USA
2. Department of Geology and Geophysics, University of Minnesota, MN55455, USA |
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| 基金项目： | 美国国家自然科学基金(EAR9805419)和中国国家科委攀登预研基金(95S05)联合资助. |
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| 摘 要： | 本文首次报导了含铁量不同的橄榄石单晶在不同温压条件下水溶性的试验研究结果。橄榄石单晶试件在300MPa静水压和1000℃至1300℃的温度条件下进行热压，每隔50℃进行一组试验，氧逸度被控制在Ni/NiO水平上。对热压后试件的抛光无包裹体区域做了显微红外光谱分析，红外光束平行于试件的010]方向，最小直径为15－25μm。分析结果表明，在实验温压范围内，橄榄石中的水含量随铁含量的增加而增加。对于同样铁含量的橄榄石，则随湿度的增加，橄榄石的水含量也增加。最后，本文就实验结果对地幔动力学过程的启示进行了简单的讨论。
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| 关 键 词： | 橄榄石 水含量 铁含量 红外光谱分析 地幔流变性 电子探针 包裹体 试验 |
| 修稿时间： | 2000年10月26 |
Experimental investigation
on water solubility in olivine single crystals with different Fe content |
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| Yong Hong ZHAO,S. GINSBERG and D. L. KOHLSTEDT..Experimental investigation
on water solubility in olivine single crystals with different Fe content[J].Acta Petrologica Sinica,2001,17(1):123-128. |
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| Authors: | Yong Hong ZHAO S GINSBERG and D L KOHLSTEDT |
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| Institution: | Yong Hong ZHAO,S. GINSBERG and D. L. KOHLSTEDT. . Department of Geophysics,Peking University,Beijing,Chin,. Department of Geology and Geophysics,University of Minnesot,MN,USA |
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| Abstract: | This paper reports the experimental results of water solubility in San Carlos olivine single crystals with different iron content hydrothermally annealed under a pressure of 300MPa and at a temperature from 1000℃ to 1300℃ with 50℃ increments with oxygen fugacity controlled by the Ni/NiO buffer. The water content was analyzed using infrared spectra in ［010］ direction of polished samples in crack-free and inclusion-free regions about 15 to 25 μm in diameter. From the FTIR analysis, it is observed that water content increases with iron content as well as temperature under the experimental condition we used. The implication of the test result to the dynamic process in earth mantle is discussed briefly as well. |
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| Keywords: | Olivine Water solubility Fe content FTIR |
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