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一、郑州市地下水资源概况郑州市地处中原,地势西南高、东北低,地面最大高差110米。地貌上表现为低山、丘陵、黄河古台地与黄河现代冲积平原。地下水资源丰富,地下水流向也是由西南向东北。本区潜水含水层埋深在25～60米之间。其中黄河古台地含水层岩性主要为上更新统黄土夹钙质结核,厚度25～30米,水量比较小,水位埋藏深,无工业开采价值。黄河冲积平原含水层岩性上部为粉细砂,中部为中细砂,累计厚度25米左右,由西南向东北方
First, Zhengzhou City Overview of groundwater resources Zhengzhou City is located in the Central Plains, high terrain southwest, northeast low, the maximum elevation of 110 meters on the ground. Landforms showed low mountains, hills, the Yellow River and the Yellow River ancient alluvial plains. Groundwater resources are abundant and groundwater flows from southwest to northeast. The diving aquifer in this area is between 25 and 60 meters deep. The paleo-lithology of the ancient platform in the Yellow River mainly consists of calcareous nodules of the upper Pleistocene loess with a thickness of 25-30 meters, relatively small amount of water, deep water level and no industrial exploitation value. The upper part of the Yellow River alluvial aquifer lithology is silty sand, the middle is fine sand, the total thickness of about 25 meters, from southwest to northeast