中国地球化学学报(英文版)2002，Vol.21Issue(3)：252-257,6.
The Electrical Conductivity of Gabbro at High Temperature and High Pressure
The Electrical Conductivity of Gabbro at High Temperature and High Pressure
摘要
Abstract
The electric conductivity of gabbro has been measured at 1.0 - 2.0 GPa and 320-700℃, and the conduction mechanism has been analyzed in terms of the impedance spectra.Experimental results indicated that the electric conductivity depends on the frequency of alternative current. Impedance arcs representing the conduction mechanism of grain interiors are displayed in the complex impedance plane, and the mechanism is dominated at high pressure.These arcs occur over the range of 102 - k× 105 Hz (k is the positive integer from 1 to 9). On the basis of our results and previous work, it is concluded that gabbro cannot form any high conductivity layer (HCL) in the middle-lower crust.关键词
high temperature and pressure/gabbro/conduction mechanism/electrical con-ductivity/HCLKey words
high temperature and pressure/gabbro/conduction mechanism/electrical con-ductivity/HCL分类
天文与地球科学引用本文复制引用
王多君,李和平,易丽,张卫刚,刘丛强,苏根利,丁东业..The Electrical Conductivity of Gabbro at High Temperature and High Pressure[J].中国地球化学学报(英文版),2002,21(3):252-257,6.基金项目
This research project was financially supported jointly by the National Climbing Program (Grant No. 95-P-39) and the National Natural Science Foundation of China (Grant No. 49674221). （Grant No. 95-P-39）
