TY JOUR TI Chemical and physical diagnostics of tektites KW tektites KW scattered fields KW natural aluminosilicate glasses KW infrared spectroscopy KW electron paramagnetic resonance KW 57Fe Mossbauer spectroscopy JO Vestnik of geosciences AU Lysyuk, A.Y. AU Lyutoev, V.P. AU Golovataya, O.S. PY 2026 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"