%0 Journal Article
%T On the role of the J-E constitutive relationship in applied geoelectromagnetism
%A D. Patella
%J Annals of Geophysics
%D 2003
%I Istituto Nazionale di Geofisica e Vulcanologia (INGV)
%R 10.4401/ag-3430
%X In current applications of the Induced Polarization (IP) method, the Debye and Cole-Cole models are used to study relaxation and dispersion properties of rocks, though it is believed that this type of modelisation is confused and vague, because of the lack of a background physical description. In this paper, we show that the Debye model can physically be deduced as a consequence of the electrodynamic behaviour of a mixture of bound and unbound charged particles immersed in an external electric field. We also clarify that the Cole-Cole model is a synthetic model, which can physically be explained as a continuous distribution of Debye terms.
%K rock electrodynamics
%K induced polarization
%K impedivity models
%U http://www.annalsofgeophysics.eu/index.php/annals/article/view/3430