Major ion hydrogeochemical processes and identification of mine’s water-bursting source

Correlation and multivariate statistical techniques were used to identify the natural hydrogeochemical processes and ventilation adit water-bursting source in the study area,. In the study area, water samples were of HCO3-Ca type. Three principal components were extracted. PC1 represented the ion exchange and the weathering of calcite, dolomite, and silicate minerals. PC2 and PC3 indicated hydrological processes, agricultural activities, and the process of evaporation, respectively. The hydrochemistry of water in the area had multiple factors, and natural mineral weathering and ion exchange were the most important ones. Cluster analysis of water samples were divided into four groups of clusters (Group1-Group4), and the water samples during wet and dry periods were compared and the degree of similarity between water samples were determined. The ventilation adit water samples M1 and M2 had great similarity with spring sample S3.

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