| 橄榄石中H的结合机制及扩散行为 |
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| 引用本文： | 张培培,刘佳.橄榄石中H的结合机制及扩散行为[J].岩石矿物学杂志,2013,32(5):708-732. |
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| 作者姓名： | 张培培 刘佳 |
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| 作者单位： | 中国科学院 壳幔物质与环境重点实验室, 中国科学技术大学 地球和空间科学学院, 安徽 合肥 230026;中国科学院 壳幔物质与环境重点实验室, 中国科学技术大学 地球和空间科学学院, 安徽 合肥 230026 |
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| 基金项目： | 国家自然科学基金资助项目(41225005) |
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| 摘 要： | 名义上无水矿物(nominally anhydrous minerals,NAMs)中以点缺陷形式存在的结构水,因其对于矿物物理化学性质的显著影响而受到越来越广泛的关注。橄榄石是上地幔中含量最丰富的矿物,水在橄榄石中的存在形式、扩散机制和速率对上地幔的流变学和电导性质有着重要的影响。因此,对于橄榄石中H的结合机制及其扩散机制和速率的了解有助于理解地球深部的水循环,也有助于构建上地幔流变结构以及解释电导测量结果。本文总结了近几十年来学界对于H在橄榄石中存在的缺陷类型与OH红外光谱吸收峰之间的对应关系,以及H在矿物晶格中的扩散机制、扩散速率等重要问题的研究成果,并探讨了现有研究中依然存在的问题。
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| 关 键 词： | 橄榄石 H的结合机制 H的扩散 红外光谱 |
| 收稿时间： | 2013/8/28 0:00:00 |
| 修稿时间： | 2013/9/8 0:00:00 |
The incorporation mechanisms and diffusion kinetics of hydrogen in olivine |
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| ZHANG Pei-pei and LIU Jia.The incorporation mechanisms and diffusion kinetics of hydrogen in olivine[J].Acta Petrologica Et Mineralogica,2013,32(5):708-732. |
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| Authors: | ZHANG Pei-pei and LIU Jia |
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| Institution: | CAS Key Laboratory of Crust_Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China;CAS Key Laboratory of Crust_Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | OH incorporated in nominally anhydrous minerals (NAMs) has received increasing attention due to its profound influence on the chemical and physical properties of minerals. Olivine is the most abundant mineral phase in the upper mantle, and a trace amount of water in its structure would lead to a large effect on the rheology and conductivity of the upper mantle. Thus, the knowledge of the mechanisms of H incorporation in olivine''s structure and the mechanisms and rate of H diffusion in its lattice is helpful to understand the water circulation between the surface and the deep earth and to explain the rhelogically and magnetotellurically observed data. In this paper, the authors compiled studies of olivine during the last two past decades on how H associated with different point defects correlate with the apparent infrared absorption bands, how these different H diffuse through the lattice and how fast these diffusive fluxes occur. The problems existent in these researches are also pointed out in this paper. |
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| Keywords: | olivine incorporation mechanisms of H diffusion of H infrared spectroscopy |
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