Fig. 8From: 3D interpretation of helicopter-borne frequency-domain electromagnetic (HEM) data from Ramså Basin and adjacent areas at Andøya, NorwayHEM resistivity slice at 76 m depth below the surface with 100 and 300 Ωm resistivity contours (thin black lines). Ramså Basin boundary (green line) borehole locations (red circles), outcrop observations (black squares) and ERT lines (blue line) are also shown. Two conductive areas are marked as C1 and C2Back to article page