Kansas Geological Survey, Current Research in Earth Sciences, Bulletin 247, part 1
Modeling Dielectric-constant Values of Geologic Materials: An Aid to Ground-penetrating Radar Data Collection and Interpretation--Fig. 9A

Fig. 9A. Measured dielectric constant versus helium porosity for water saturations of approximately 0% (air-dried), 20Ð40%, and 40Ð60%. The TP-model dielectric-constant curves for different water saturations (orange line shows baseline conditions) are also shown. These values are based on laboratory measurements from Tonganoxie Sandstone estuarine sandstone, shaly sandstone, siltstone, and shale samples.