Ground Penetrating Radar Surveys

Knowledge in the Field

Ground Penetrating Radar (GPR) surveys are used in engineering applications to locate tunnels or voids, pipes, the water table, soil layers with differing water content and bedrock faults and fractures. Radar reflections occur at the boundary between materials with different dielectric permittivity - a property largely controlled by liquid water content. GPR surveys have depths of investigation ranging from a couple of metres at high frequencies (500 MHz) in conductive ground to as much as 25 metres using low frequency (25 MHz) antennas. As with all geophysical techniques, resolution comes at a cost in penetration. 

AGL Delivers

AGL offers GPR surveys with RAMAC and Pulse EKKO radars at frequencies from 12.5 to 500 MHz. We pioneered the application of GPR to placer exploration in the North back in 1989 with a GSSI system and have conducted extensive tests of GPR for placer exploration published as Yukon E&GS Open File 1994-1. We have also run GPR surveys to locate pipes, tunnels and cadavers.