Exploration of soil and rock deposits
Scope of services
Multi-pole geoelectrics is a common procedure for the exploration of gravel and sand deposits. The application area of geoelectrics is versatile and also integrates the exploration of dams, aquifers and underground obstructions. Depending on task, a geoelectrical exploration is performed with single sections of up to 200 m length, providing a penetration up to 40 m. Resulting data is displayed in a 2D resistivity tomography, where from the type of soil can be derived. In the process it can mainly be differentiated between cohesive and non-cohensive soils. Besides, shallow seismic methods are also capable of deposit exploration in water with penetrations up to 15 m. The combination of seismic and geoelectrical methods increase the quality of subsoil investigations on unconsolidated rock deposits. On basis of exploration drillings (e.g. percussion core or auger drilling) geoelectric and seismic results can be correlated and this forms the base for a deposit-related interpretation in the area of gravel and sand exploration.