Combining Airborne Electromagnetics and Drillings to Construct a Stochastic 3D Lithological Model

Airborne (helicopter) electromagnetics (HEM) together with drillings were used to construct a three-dimensional model of the subsurface in an area where glacial incisions of Elsterian age occur. HEM data showed marked variations in resistivity in the upper 70 m of the soil that could be ascribed to variation in lithological properties of the sediment. Linking borehole data to resisitivity enables the development of a three dimensional lithological model of the area.