%0 Journal Article %T Tephrostratigraphy of Jurassic-Cretaceous boundary beds of Western Siberia %A Panchenko, I.V. %A Rogov, M.A. %A Sobolev, I.D. %A Latyshev, A.V. %A Zakharov, V.A. %K altered volcanic tuffs, marker horizons, isochronous levels, correlation of sections, ammonites, trace element, rare earth elements, black shales, Bazhenovo Formation. %J Russian Journal of Earth Sciences %D 2022 %N 22 %P 58 %I Geophysical Center of the Russian Academy of Sciences