Helicopter-borne magnetic, electromagnetic and radiometric geophysical survey in Gauldal and Sokndal area, Sør-Trøndelag County

Abstract

NGU conducted an airborne geophysical survey in the Gauldal and Sokndal area in July and October 2015 as a part of the MINS project. This report describes and documents the acquisition, processing and visualization of recorded datasets. The geophysical survey results reported herein are 8615 line km, covering an area of 1723 km2. The NGU modified Geotech Ltd. Hummingbird frequency domain system supplemented by optically pumped Cesium magnetometer and a 1024 channels RSX-5 spectrometer was used or data acquisition.