Electric conductivity under high pressure and high temperature for the crust-mantle rocks in qinling-dabie mountain and the knowledge about the electric structure model of mountain building belt

摘要

The dependency of rock electric conductivity on frequency was studded with AC method. Under a given pressure and temperature, the influence of frequency on the electric conductivity is very small within the range of 0.1-10Hz, the electric conductivity increases slightly with increase of frequency at higher frequency range, and this phenomenon is more remarkably under lower temperature than under higher temperature. Firstly reported the result of determination on electric conductivity of crust-mantle rocks in Qinling-Dabie mountains.