摘要
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 。
In an integrated hydrogeological unit, the mineral dissoution and precipitation occur usually in the following order: calcite, dolomite, gypsum from the recharge region to the outflow zone. Thus, the calcite saturation index in the water should often be greater than that of dolomite. However, the opposite case is present in 8508-8516 bore belt of the Lu'an mine, Xin'an springs where the saturation index of dolomite is distinctively greater than that of calcite. To explain this phenomenon, a set of hydrochemical reaction models are established in this paper and the corresponding existence conditions of these models are expounded. Furthermore, the model thus established is further tested with such theories as redox and ion alternation. Consequently, this model proves effective in the field work. Finally, this model may also prove effective in other similar hydrogeological units. Therefore, this model is universal to some extent.
出处
《地球科学（中国地质大学学报）》
EI
CSCD
北大核心
2000年第2期205-208,共4页
Earth Science-Journal of China University of Geosciences
基金
国家自然科学基金!资助项目 (No .49772 160 )
关键词
饱和指数
化学反应模型
水文地质
地下水
saturation index
hydrochemical reaction model
redox
ion alternation.
