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运用多相、多矿物、多组分化学平衡和Helgeson发展的质量迁移计算理论 ,以大同麻峪口地区为例 ,依据该区岩石矿物鉴定结果 ,建立质量迁移数学模型 ,采用PHREEQE程序 ,模拟计算获得原生矿物溶解量、次生矿物生成量和进入水中的物质量。计算所得地下水化学成分、水化学类型与实际水样分析结果接近 ;结合化学热力学结果研究了水化学类型分带机制和环境条件 ,进而模拟和验证了化学反应、元素迁移和分异 ,以及制约水化学分带的矿物序列。
Based on the mass migration calculation theory of multi-phase, multi-mineral, multicomponent chemical equilibrium and Helgeson development, taking MaYukou area in Datong as an example, the mathematical model of mass transfer is established based on the identification results of rock and mineral in this area. The PHREEQE program is used to simulate The amount of primary mineral dissolved, the amount of secondary mineral produced, and the amount of material entering the water are obtained. The calculated chemical composition of groundwater is close to that of the actual water sample. The chemical mechanism of zonation and the environmental conditions are studied in combination with the results of chemical thermodynamics, and the chemical reactions, element migration and differentiation are also simulated and verified. Chemical zoning mineral sequence.