Shortly after I graduated with my Bachelor's degree I went to work for Mult-Phase Technologies. Durring my stay I worked on various projects that dealt with electrical resistivity tomography. Although most of the projects I worked on were proprietary I will post a few of the images projects that were non proprietary below.
We used magnetometric resistivity to located abondoned mine tunnels. In this special case we were able to place a current electrode on a conductor running through the tunnel. When the current travels up the tunnel the magnetic field induced by the current flowing through the tunnel can be measured. I used forward modeling to predict the location of the abandoned tunnel.
This map shows the location of the resitivity line that was conducted. The University of Nevada, Reno conducted a seismic reflection line, indicated by the small red line on the map.
The results of a roll-along resistivity survey that was conducted over a tufa mound near Pyramid Lake, NV. The tufa tower is thought to be deposited by hydrothermal activity in the near past.