Compared to traditional ways of conducting geological survey, such as exploration boreholes, geophysical prospecting methods are less invasive, faster, and less expensive. Therefore, a vertical electrical sounding was recommended as an additional geological survey in the landslide area bellow Jezerka hill.
The survey aimed at determining the bottom of Quaternary sediments and particular Quaternary accumulation layers of various grain sizes. As a result, three to four different layers were determined in particular profiles.
The method proved to be suitable when detecting coarse or lumpy deluvium, although failed to determine the course of the Quaternary sediment bottom due to insufficient current electrode spacing.