TY JOUR TI Dynamics of changes in the composition of quarry waters as exemplified by the gypsum deposit at the Arkhangelsk region KW gypsum quarry KW quarry water KW sulphates KW strontium KW environmental monitoring KW treatment facilities JO Vestnik of geosciences AU Nakhod, V.A. PY 2025 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"