Federal Highways Administration- Geophysical Imaging Resource Site

HOME / GEOPHYSICAL METHODS, THEORY, AND DISCUSSION /

Geophysical Quantities...

This section is substantially based on a report produced by the Environmental and Engineering Geophysical Society titled Applications of Geophysics in Geotechnical and Environmental Engineering, 1998.

Many physical properties and quantities are involved in an understanding of geophysics and geophysical methods. In this section, the units of measurement are defined and some relationships established such as saturated porosity vs. dielectric constant. In addition, some of the physical properties of earth materials are presented.

ELECTRICAL CONDUCTIVITY (σ) AND RESISTIVITY (ρ)

MAGNETIC SUSCEPTIBILITY (K)

DENISTY

POROSITY

SEISMIC VELOCITIES (VS, VP)

REFLECTIVITY

GEOMECHANICAL (ENGINEERING) PROPERTIES