  In this work we give the analysis of the low frequency dielectric response of
selected kaolinitic clays at different water content ranging from dry, over
plastic to liquid limit. For all samples investigated, depending on the
moisture content, the real part of the dielectric function reflects the
abnormal behaviour within the certain frequency region where the negative
values of real part of dielectric response have been observed. The anomalies
are explained within a generalized conductivity model based on the clay-water
electrolyte ions free motion in pore water and their restricted motion near the
clay particle surface. The results indicate that the dynamics of the ions in
moist clay is in part governed by anomalous diffusion.
