Experimental and Theoretical Studies of the Temperature Dependence of Spectral Induced Polarization (SIP)

The temperature dependence of spectral induced polarization (SIP) parameters is of interest for measurements near the surface where seasonal and meteorological temperature variations are present. Also measurements at greater depths, where the temperature increase with depth dominates, are influenced by the temperature. We analyze the temperature dependence by calculating the polarization parameters with an extended membrane polarization model, and by measuring the SIP-response of a limestone sample in a temperature range of 0°C to 60°C. Both simulations and measurements show a temperature dependence of the complex electrical conductivity. The phase shift slightly changes with temperature, depending on the pore geometry of the material.