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. 8B
Fig. 8B. Reflection coefficient at interface between upper and lower layers versus water saturation present in both layers in a 0.5-m (1.6-ft)-thick, 35% porosity, 100% quartz layer overlying a 0.5-m (1.6-ft)-thick, 20% porosity, 60% quartz, 40% mica layer.