Material | Dielectric Constant |
Sand (dry) | 3 - 6 |
Sand (saturated) | 20 - 30 |
Silts | 5 - 30 |
Shales | 5 - 15 |
Clays | 5 - 40 |
Humid soil | 30 |
Cultivated soil | 15 |
Rocky soil | 7 |
Sandy soil (dry) | 3 |
Sandy soil (saturated) | 19 |
Clayey soil (dry) | 2 |
Clayey soil (saturated) | 15 |
Sandstone (saturated) | 6 |
Limestone (dry) | 7 |
Limestone (saturated) | 4 - 8 |
Basalt (saturated) | 8 |
Granite (dry) | 5 |
Granite (saturated) | 7 |
From: Hubbard, S. S., J. E. Peterson, Jr., E. L. Majer, P. T. Zawislanski, K. H. Williams, J. Roberts, and F. Wobber, Estimation of permeable pathways and water content using tomographic radar data, The Leading Edge, 16, 1623-1628, 1997.
Last updated on June 3, 1999 by William P. Clement |