Abstract
In the locality Letonice - Pinwheels pilot was conducted geophysical survey, whose task was to determine how it can contribute to exploration geophysics, mapping and rock positions affected by sufoze. This knowledge is important because there is a cultivated farmlands and in the past have established deep sinks - sufoze sinkholes - occurred.
Surface measurements were performed gravimetry around two old sinks and sinks through both were held every two vertical profiles geoelectric methods ERT.