高温高压下二辉橄榄岩的阻抗谱实验研究

代立东; 李和平; 刘丛强; 苏根利; 崔桐娣; 单双明; 杨昌君; 刘庆友

doi:10.11858/gywlxb.2005.01.006

高温高压下二辉橄榄岩的阻抗谱实验研究

doi: 10.11858/gywlxb.2005.01.006

1.
中国科学院地球化学研究所地球深部物质与流体作用实验室，贵州贵阳 550002；
2.
中国科学院研究生院，北京 100039；
3.
中国科学院地球化学研究所，贵州贵阳 550002；
4.
贵州工业大学，贵州贵阳 550004

详细信息

通讯作者:
代立东

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出版历程
- 收稿日期: 2004-06-08
- 修回日期: 2004-09-20
- 发布日期: 2005-03-05

Experimental Study on Impedance Spectra of Iherzolite under High Temperature and High Pressure

1.
Laboratory of Earth's Interior Materials and Fluid Effect, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;
2.
Graduate School of Chinese Academy of Sciences, Beijing 100039, China;
3.
Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;
4.
Technology of University in Guizhou, Guiyang 550004, China

More Information

Corresponding author: DAI Li-Dong

摘要

摘要: 在1.0～4.0 GPa压力、1 073～1 573 K温度和10-1～107 Hz频率条件下，利用SARLTON-1260阻抗-增益/相位分析仪，就位测定了二辉橄榄岩的阻抗谱。实验结果表明：二辉橄榄岩的阻抗谱对频率具有很强的依赖性，并从阻抗谱的测试原理（颗粒内部、颗粒边缘、样品与电极间的导电机制）上做出了解释；温度是决定二辉橄榄岩电导率的一个重要物理参数，电导率随着温度的升高而增大，lg 与1/T之间符合Arrenhius关系式；在高压实验中第一次将压力作为测量二辉橄榄岩电导率重要的约束因素，随着压力的增大，电阻率升高、电导率降低。
- 二辉橄榄岩 /
- 高温高压 /
- 频率 /
- 电导率 /
- 阻抗谱
Abstract: The electrical conductivities of the iherzolite were measured by virtue of SARLTON-1260 frequency and phase impedance spectroscopy analyzer in situation of 1.0~4.0 GPa, 1 073~1 573 K and 10-1～107 Hz frequency ranges. The experimental results indicate that the complex impedance spectra of iherzolite strongly depends on frequency, at the same time we explain it by virtue of electrical conduction: grain boundaries, grain interiors as well as between sample and electrode; the temperature is an important parameter deciding the electrical conductivity. As temperature increases, the electrical conductivity augments. The relationships between lg and 1/T accord with Arrenhius relation formula; this is the first time that the pressure as a controlling ingredient is well brought forward: As the pressure increases, the block rate advances; at the same time the electrical conductivity decreases.
- iherzolite /
- high temperature and high pressure /
- frequency /
- electrical conductivity /
- impedance spectroscopy

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参考文献(22)

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