Kou, X.; Zhao, Z.; Duan, L.; Sun, Y. Hydrogeochemical Behavior of Shallow Groundwater around Hancheng Mining Area, Guanzhong Basin, China. Water2024, 16, 660.
Kou, X.; Zhao, Z.; Duan, L.; Sun, Y. Hydrogeochemical Behavior of Shallow Groundwater around Hancheng Mining Area, Guanzhong Basin, China. Water 2024, 16, 660.
Kou, X.; Zhao, Z.; Duan, L.; Sun, Y. Hydrogeochemical Behavior of Shallow Groundwater around Hancheng Mining Area, Guanzhong Basin, China. Water2024, 16, 660.
Kou, X.; Zhao, Z.; Duan, L.; Sun, Y. Hydrogeochemical Behavior of Shallow Groundwater around Hancheng Mining Area, Guanzhong Basin, China. Water 2024, 16, 660.
Abstract
Based on the analysis of hydrochemical data of 18 samples of shallow groundwater around Hancheng mining area in Guanzhong Basin, Gibbs semi-logarithmic diagram and Piper diagram were used to study the hydrogeochemical behavior of shallow groundwater around Hangcheng mining area in Guanzhong Basin. Chemical composition analysis showed that most of the groundwater was SO4 · Cl-Ca · Mg type, accounting for 61.1 %. Hydrogen and oxygen isotope data show that groundwater in the study area is recharged by modern precipitation. The main chemical components of most groundwater are Ca2+, Mg2+, HCO3-, Cl-and SO42-. Ca2+, Mg2+, and HCO3- are mainly dolomite, calcite, and gypsum dissolution precipitation results. Na+ and Cl- originate from the dissolution of halite. The main ion chemistry of shallow groundwater in this area is controlled by rock weathering, and pyrite oxidation is an important factor affecting SO42-concentration. The research results will help analyze the formation mechanism of chemical components and provide some basic data for the evolution of mine water in this area in the future.
Environmental and Earth Sciences, Geochemistry and Petrology
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