Geophysical Technologies to Image Mine Works By: Hanna, Hoekstra, Pfeiffer, Uphouse Read More

Ground Penetrating Radar Inspection to Evaluate Stability of Sound Wall Pillars By: Pfeiffer, Hanna Read More

Geophysical Void Detection Demonstrations By: Hanna, Hoekstra, Pfeiffer, Uphouse Read More

Clay Seam Mapping with Electromagnetic Induction By: Pfeiffer, Hanna Read More

Subsurface Imaging of Lava Tubes - Roadway Applications By: Meglich, Williams, Hanna Read More

A Comparison of Non-Invasive Geophysical Methods for Mapping Near-Surface Voids By: Haramy, DeMarco, Meglich, Hanna Read More