TY JOUR TI Izyuryel occurrence of Lower Carboniferous kaolins of the South Timan: occurrence mode, textural features KW kaolinite strata KW the Lower Carboniferous KW the South Timan JO Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences AU Saldin, V.A. AU Burcev, I.N. AU Simakova, Y.S. AU Shebolkin, D.N. AU Gruzdev, D.A. PY 2023 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"