GEM-2 - New Generation Electromagnetic Sensor for Near Surface Mapping

Because of the need for modern lightweight electromagnetic sensor for near surface mapping in Geological Survey of Finland (GTK) in the beginning of year 2015 GTK purchased GEM-2 multi-frequency broadband electromagnetic sensor. During the year 2015 sensor was field-tested in several geologically and environmentally different targets and purposes. The results of the one, detecting and monitoring seepage from tailings pond, is presented in this abstract. Field tests have proved sensor’s suitability to wide range of near surface environmental studies including UXO-detection, environmental contamination mapping, shallow geology modellng and ice thickness mapping. Besides good quality data sensor has proven to be quick, reliable and easy to use equipment for shallow near surface mapping.