TY JOUR TI S-granites of the Izhma zone of the Pechora basin basement: features of composition, U-Pb and 40Ar-39Ar dating results KW Pechora basin KW Izhma zone KW basement KW granite KW zircon KW U-Pb SHRIMP-RG age KW muscovite KW 40Ar-39Ar age of muscovite JO Vestnik of geosciences AU Andreichev, V.L. AU Soboleva, A.A. AU Dovzhikova, E.G. AU Coble, M.. AU Ronkin, Y.L. AU Travin, A.V. PY 2025 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"