Eleseeva Lyubov Vasilievna RussiaSaratovSaratov State University, 83, Astrakhanskaya Str., Saratov, 410012, Russiasenior teacherkorobad@yandex.ru Author's articles Parageneses and Formation Histories of Clayey and Titanian Minerals from the West Siberian Terrigenous Reservoirs – the Basis for Predicting Oil and Gas Accumulation Zones Hydrothermal Lithogenesis and Its Role in Riftogenic-Sedimentary Oil and Gas-Bearing Platform Complex Formation