Impedance spectroscopy analysis on electrical properties of serpentine at high pressure and high temperature
文献类型：期刊论文
| 作者 | Zhu, MX; Xie, HS; Guo, J; Bai, WM; Xu, ZM |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2001-04-01 |
| 卷号 | 44期号:4页码:336-345 |
| 关键词 | electrical conductivity grain interior conductance free water dehydration simulated experiments |
| ISSN号 | 1006-9313 |
| 文献子类 | Article |
| 英文摘要 | The electrical conductivity of serpentine is measured and the microscopic conductance mechanisms are investigated with impedance spectroscopy at 2.5-4.0 GPa and 220-780degreesC. The results show that the electrical conductivity is strongly dependent on the frequencies used, and that only arc I, which reflects grain interior conductance, occurs and dominates the whole conductance processes over 12-10(5) Hz at high pressure before dehydration. The arc 11, which indicates the grain boundary process, begins to occur at the initial stage of dehydration. After dehydration, due to the presence of highly conductive networks of free water, the electrical conductivity is not dependent on frequencies any longer and the total electrical conductivity is dominated by process of ionic conductance of free water in interconnected networks. Dehydration of serpentine enhances pronouncedly the total electrical conductivity, through which highly conductive layers (HCL) may be formed in the earth's interior. |
| WOS关键词 | CONDUCTIVITY ; PEROVSKITE ; DEHYDRATION ; MINERALS ; ROCKS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000174380200006 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/77019]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhu, MX |
| 作者单位 | 1.Chinese Acad Sci, Inst Geochem, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, MX,Xie, HS,Guo, J,et al. Impedance spectroscopy analysis on electrical properties of serpentine at high pressure and high temperature[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2001,44(4):336-345. |
| APA | Zhu, MX,Xie, HS,Guo, J,Bai, WM,&Xu, ZM.(2001).Impedance spectroscopy analysis on electrical properties of serpentine at high pressure and high temperature.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,44(4),336-345. |
| MLA | Zhu, MX,et al."Impedance spectroscopy analysis on electrical properties of serpentine at high pressure and high temperature".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 44.4(2001):336-345. |
入库方式： OAI收割
来源：地质与地球物理研究所
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