The article discusses the content and distribution of natural radioactive elements (uranium, thorium, and potassium) in the Upper Jurassic deposits of the Kogalym-Pokachevsky region, based on data from nine wells. Through comprehensive studies, eight stages of deposition have been identified, including deposits from shelf silts to the prefrontal zone of the beach. Certain patterns of migration and accumulation of these radioactive elements have been observed for each stage, and their limiting values have been determined.