Spatiotemporal and lithological-facies distribution of natural radioactive elements in Jurassic and Early Cretaceous deposits of the Western Siberian Plate

Abstract

The paper presents original data on the K, U, and Th distribution over the areas of Jurassic and Early Cretaceous sedimentation basins on the Western Siberian Plate and on the distribution of natural radioactive elements in all major lithological–stratigraphic complexes and through the facies profile of the humid and arid sedimentation basins. These data can be utilized in lithological-facies analysis, reconstructions of sedimentation conditions, lithological and stratigraphic subdivision of stratigraphic sections, and in mapping boundaries between oil and gas complexes and assaying the hydrocarbon potential of the region.