TY JOUR TI Lithology of karst deposits of the Uppen Visean section of the Zalesskaya area (North-Western part of the Orenburg region, Russia) KW Zalesovo area KW Upper Visean section KW dolomite breccia KW karst process JO Vestnik of geosciences AU Boyarshinova, M.G. AU Kalina, R.I. PY 2022 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"