晋西南峨嵋台塬的岩溶水系统及岩溶水资源潜力

本文通过分析峨嵋台塬的地质结构和岩溶水补给的自然条件,提出:(1)峨嵋台塬岩溶水具独立的地下水系统特征,北边界为里望断裂,南边界为临猗断裂,西边界为沿黄河东岸延展的夹马口—小梁断裂,东边界为稷王山东麓泥页岩带和变质岩体;(2)岩溶水主要来自稷王山裸露区大气降水,少量排向河津—侯马盆地和运城盆地,大量沿临猗断裂带向黄河方向迳流排泄,排泄量不到东王岩溶泉流量的10%;(3)峨嵋台塬岩溶水潜力有限。

Karst water system and water resources potential in the Emei loess platform in southwestern Shanxi

By analyzing the geologic structure and natural recharge condition of karst water system in the Emei Loess Platform,the following conclusions were drawn in this paper.(1) Karst water occurring in the Emei Loess Platform is of features of a single groundwater system.Its northern boundary is the Liwang Fault,the western boundary is the Jiamakou-Xiaoliang Fault occurring along the Yellow River,southern boundary is boarded by the Linyi Fault,and the eastern boundary is composed of muddy shale and metamorphic rocks.(2) Karst groundwater receives recharge from precipitation and a small amount of runoff,and discharges into the Hejin-Houma Basin and the Yuncheng Basin,and a large amount of the karst groundwater flows to the Yellow River along the Linyi Fault Zone.The discharge of the karst water system in the Emei Loess Platform is less 10% of the Dongwang karst springs yield.(3) The karst water is limited in the groundwater resources potential.