“Boskalis uses for different projects geo-electric surveys to quantify and qualify rock outcrops. For the geological setting near the coast of Luderitz (Namibia) geo-electric survey is preferred above conventional reflection seismic since gravels above the rock outcrop might diffuse the signals. Also it is believed that reflection seismic will not give information about the rock strength characteristics, while geo-electric survey data can.”(Advise from Boskalis BV to Namport with regards to the geophysical methods to be used in the port of Luderitz)