The subsoil gamma-ray intensity distribution in the Oriental Region of the Republic of Paraguay

Subsoil gamma-ray intensity measurements are used in uranium prospecting and in the classification of lithologies. This work charts the subsoil gamma-ray intensity distribution in the Oriental Region of the Republic of Paraguay, a centrally located country in South America. Gamma-ray count rates were obtained at depths of 5, 10, 50, and 100 m in 158 wells and count rate contour maps were generated for each of the depths. Three regions of gamma-ray anomalies were identified.