Cascade Imaging Solutions
1 Deacon Place, St. Albert, Alberta, Canada T8N 6S5
(780) 705-7721
info@cascadeimaging.ca

Geonics EM31

The Geonics EM31 is a frequency-domain electromagnetic geophysical instrument designed to measure bulk soil conductivity, also known as apparent conductivity. The instrument has an effective depth of penetration, or skindepth, of approximately 5.5 meters, and is often used in conjunction with the Geonics EM38 to obtain generalized depth information. The instrument has a deeper skindepth than the EM38, and a larger footprint. As such, the tool will detect deeper ion concentrations but will produce lower resolution maps and is prone to interference from nearby electrical sources and metal infrastructure.
Setting the Precedent in Environmental Geophysics