f The possibilities of airborne geophysical survey in natural environment

Airborne geophysical survey has been applied in Czechoslovakia since 1957 . At the present time the airborne gamma-ray spectrometry and magnetometery survey is carried out by Geofyzika Brno. The airplane AN-2 is equipped with 256-channel Geometrics GR-800D gamma-ray spectrometer with NaI(Tl) detectors of total volume of 33 .6 litres . The magnetometery is provided by means of proton magnetometer G 801 /3B Geometrics. The constituent paft of equipment represents electronic navigation Mini Ranger III Motorola , which secures precise positioning of measured aerogeophysical data .