Open AccessPhysical and Chemical Regularities of Water’s Composition Formation in Natural and Technogenic Geological Structures of Closed Coal Mines (“Water-Rock” Model Verification)
Author(s) -
Irina A. Tarasenko,
A. V. Zinkov,
Ekaterina A. Zinkova
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/459/5/052088
Subject(s) - dolomite , chemical composition , geology , groundwater , mineralogy , aluminosilicate , sedimentary rock , coal , composition (language) , geochemistry , aqueous solution , geochemical modeling , chemistry , environmental chemistry , geotechnical engineering , catalysis , biochemistry , linguistics , philosophy , organic chemistry
The physical and chemical modelling helped to establish the regularities of the groundwater’s composition formation in the areas of coal mines that are being abandoned. We demonstrated that the unusual features of the composition of the subsurface waters in natural and technogenic structures of Russia and Ukraine resulted from “water–rock–gas” system’s chemical processes. “Aluminosilicates–water” system consecutively produces solutions corresponding to the HCO 3 –Ca → HCO 3 –Na(Mg) → HCO 3 –SO 4 –Na(Mg) → SO 4 –Na(Mg) series of changes in composition, “limestone-water” system produces solutions corresponding to the HCO 3 –Ca → Cl–Ca series, “dolomite-water” system consecutively produces aqueous solutions of the HCO 3 –Mg → Cl–Mg series, and “rock salt-water” system produces acidic Cl– Na type waters. We proved that water composition of technogenic complexes is determined by the features of geological structure of sedimentary basins, relations between reaction water masses and rocks (W/R), O 2 and Co 2 closeness-openness of W/R system.