The random fractal model and dielectric response of bonded water in the sandstone

The comprehensive and detailed analysis of the data for real dielectrics [1] in particular in some sandstones [2] gives the exponent time dependence for the depolarization current that has been referred to in literature [1] as the “Universal Response” phenomenon (URP). We consider that one of the main reasons which determines the URP is the structure heterogeinity caused by random fractal geometry of a medium.