This article examines the geological features of Cretaceous terrigenous deposits in the Arctic gas-bearing province of Western Siberia, formed under diverse facies conditions. Based on macroscopic descriptions of well cores and lithological analyses of rock thin sections, the main sedimentary environments - ranging from continental to marine - have been identified. The factors influencing the development of reservoir and fluid-sealing properties of the rocks are analyzed.
Bakai et al. (Wed,) studied this question.