Geology and Stratigraphy

This page highlights the most commonly used geophysical techniques for determining geology and stratigraphy. Each technique listed has its own unique capability. Which technique to use depends on the physical rock or soil property we are looking for. Seismic techniques measure acoustical changes in rock and soil. Electrical methods measure electrical changes. Borehole geophysics measures a variety of electrical, seismic, strength and radiation properties. We have successfully used these techniques in many civil and environmental studies. Please explore further by clicking on the techniques of interest or by calling us at (408) 293-7390.

Seismic Techniques

Seismic Refraction

Seismic Reflection

Borehole Seismics

Multichannel Analysis of Surface Waves


Electrical Methods



Ground Penetrating Radar

Borehole Geophysics


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