Combined magnetic, EM and resistivity study over a high conductive rock formation in Orrivaara, Northern Sweden

Three different methods were used to determine the characteristics of a high conductive structure in Northern Sweden first discovered on airborne data. Ground measurements of the total magnetic field, electromagnetic (RMT) and resistivity imaging gave valuable information used in the compilation of a new bedrock map over the area. The results of our measurements indicate metasedimentary horizons with phyrrotite and graphite.