Andreas Kemna, Maximilian Weigand, and Egon Zimmermann (2014)
Resistivity and SIP response of rocks during freezing and thawing
In: 3 rd International Workshop on Induced Polariza tion .
The use of electrical imaging methods for char
acterizing the frozen state of the subsurface
requires the understanding of the low-frequency el
ectrical soil/rock co
nduction and polarization
properties as dependent on temperature in frozen
and unfrozen regimes. While electrical resistivity
tomography, measuring the quasi-static electrical
conduction properties, is
increasingly used in
permafrost monitoring studies, relati
vely little attention has been paid so far to the measurement of
electrical polarization pr
operties for thermal state characterizati
on. In particular, in
tegrative models
describing the low-frequency be
haviour of both conduction and
polarization properties below
T
0
= 0 °C, where ice and water coexist in
stable equilibrium, are still lacking.
