Selected methods of spatial geophysical data polygonization

The purpose of this contribution is to portray three polygonization methods. The first is the manual polygonization, where only the author chooses the anomalies. The semiautomatic horizontal gradient and the ternary map methods are using some special software, where the polygon determination is based on a few mathematical and physical computations. A huge advantage of the mentioned techniques is that it can be used in many geophysical methods, in this contribution it is presented on gamma-ray spectrometric, but these methods are applicable on spatial data of magnetometry, gravimetry, thermometry and others. (authors)