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完整的水文地质单元内 ,从补给区到排泄区 ,矿物溶沉的顺序通常依次为方解石、白云石、石膏 .这样 ,水中的方解石饱和指数一般应大于白云石饱和指数 ,但在辛安泉域潞安矿区85 0 8~ 85 16孔一带 ,出现了白云石饱和指数明显大于方解石饱和指数的异常现象 .就其形成机制 ,建立了一套水化学类型形成的化学反应模型 ,阐述了模型的存在条件 ,并用氧化还原和离子交替等理论做了进一步的检验 .结果表明 ,所建模型符合实际情况 .该模型在其他类似水文地质单元内也可得以验证 ,因此具有一定的普遍意义
Complete hydrogeological units, from the recharge area to the drainage area, the order of mineral deposition followed by calcite, dolomite, gypsum, so that the saturation index of calcite in water should generally be greater than the dolomite saturation index, but in Lu’an Xin’an Springs In the area of 85 0 8 ~ 85 16 holes, the anomaly of dolomite saturation index is obviously larger than that of calcite saturation index.Based on the formation mechanism, a set of chemical reaction model of hydrochemical type is established, the existing conditions of the model are expounded, And further tests are carried out by the theory of redox and ion exchange.The results show that the model is in accordance with the actual situation.The model can also be verified in other similar hydrogeological units and therefore has a certain universal meaning