济南白泉泉群形成机理研究

Study on Formation Mechanism of Baiquan Spring Groups in Jinan City

白泉泉群位于济南市历城区,有花泉、柳叶泉等20余处。20世纪五六十年代,因泉群四溢,形成一片开阔水域,泉群周围稻香四飘,荷塘遍地,因其独特的出露方式,在济南众多泉水中具有十分重要的地位。白泉泉域是一个相对独立的水文地质单元,南部以地表分水岭为界;北部以石炭、二叠系与岩浆岩接触带为界;东、西边界分别为相对阻水的文祖断裂和东坞断裂,总面积为783.48 km2。其南部山区大面积的寒武-奥陶纪石灰岩,大气降水在此入渗并向北径流,在王舍人、济钢附近遇到石炭、二叠系和岩浆岩体阻隔,在第四系薄弱处涌出地表。该文以前人所做的大量地质、水文地质工作为基础,从地貌、地层、构造、补给等条件入手深入分析研究了济南白泉泉群的形成机理,从而为白泉泉群的保护提供科学的地质依据。

More than 20 springs including Huquan spring and Liuyequan spring distribute in Baiquan spring groups in Licheng district ol Jinan city. This spring groups overflowed its banks and formed a wide watershed in 1950s and1960s. Particularly, the sweet smelling ol rice and the lotus ponds are always around this area. Baiquan spring groups occupies an important place in Jinan springs for its particular way of spring exposure. Baiquan Spring group is a relatively independent hydrogeological unit. The southern boundary of Baiquan Spring group is the surface wa-ter; the northern boundary is Carboniferous and Permian strata, together with igneous rock mass in the north of Ji-nan ,and the eastern and the western boundaries are Wenzu fault and Dongwu fault respectively, which are weakly permeable boundaries. The total area of Baiquan spring group is 783.48km2. Atmospheric rainfall in Cambrian and ordovician limestone in the southern mountainous area of Jinan, and flow to the north. When it is blocked by Car-boniferous and Permian strata and igneous rock mass in Wangsheren village and Jinan iron corporation, the karst water gushes out to the surface through the weak formation .On the basis of the former geological and hydrogeologi-cal data in this area, from the aspects of landform, strata, structures and supply condions, the formation mecha-nism of Baiquan spring group has been analyzed systemically. It will provide a scientific and geological basis for the protection of Baiquan spring group.