Some Theoretical Considerations on Induced Polarization

Abstract

The phenomenon of induced polarization is treated as an induced electromotive force, leading to a polarization constant which is included in the effective resistivity of polarizable materials, such as earth materials. The transmission of sinusoidal electromagnetic waves through a polarizable earth is treated for frequencies above 30 cps. The polarization induced in a two‐layer earth is treated theoretically and calculations are presented.

Transient Electromagnetic Field of a Polarizable Half‐space Due to Various Current Pulses *

“…It has been shown that the effective impedance of the medium for the conduction current in the presence of an induced polarization effect above 30 Hz may be described by a mathematical expression (Bhattacharya 1964, Henkel 1958. Bhattacharya (1964) has considered the step function time domain response of a vertical magnetic dipole, placed over a polarizable half space.…”

Quasi‐static Electromagnetic Fields of a Horizontal Electrical Dipole on the Surface of a Polarizable Half‐space *

“…In this paper, the expressions for the quasi-static electromagnetic fields of the horizontal electrical dipole on the surface of the polarizable half-space have been derived for two cases: (I) for low values of the induced polarization parameter a and (2) for high values of parameter a using the effective impedance of polarizable half-space (Bhattacharya 1964, Henkel 1958).…”