Samoilov Aleksandr Gennadievich RussiaSaratovLower Volga Research Institute of Geology and Geophysics, Str. Moscow, 70, Saratov, Saratov region., 413503chief researcherDoctor of Geologo-Mineralogical Sciencesalexandrgs@yandex.ru Author's articles Mineral Resources of Khvalynsk District (Saratov Region) in the Health Resort Business Development Rhenium in the Volzhsky Stage Deposits of the Volga Shale Basin Central Part Noble, Scattered and Colored Metals in the Combustible Schists of the Volzhsky Shale Basin