A USGS Scientist Tows a Device to Measure Electrical Resistivity
By Environmental Health Program
2006 (approx.)
Detailed Description
A USGS scientist used an all-terrain vehicle to tow a device to measure the electrical resistivity of the subsurface. The system consists of five receivers that measure resistivity and one transmitter that sends an electrical signal into the ground (photo taken from Lucius and others, 2008).
Sources/Usage
Public Domain.