Measurement of dielectric response of water-saturated rocks

We tabulate an extensive set of measurements of the complex permittivity (i.e., dielectric constant and conductivity) of brine saturated rocks in the frequency range 10-1300 MHz. Rather than listing the permittivity at each frequency, we present the parameters of a Cole-Cole function used to fit the data for each rock sample. We choose the Cole-Cole function for the following reason. The data sets from 271 rock samples were fitted to the commonly used functions in the literature, i.e., Cole-Cole, Cole-Davidson, and power law functions. We found that within experimental errors the fits to both the Cole-Cole function and the power law represent the frequency dependence of the data better than the Cole-Davidson function. Further, the Cole-Cole function fits the data better at the high-frequency end of our data. This result implies that five parameters of the Cole-Cole function describe the frequency dependence of the complex permittivity of rock samples in the range 10-1300 MHz within experimental errors.