太原东山岩溶地下水系统的边界

BOUNDARIES OF THE KARST GROUND WATER SYSTEM IN THE EAST MOUNTAIN OF TAIYUAN

太原东山岩溶地下水系统的边界用地质构造结合水位及水化学资料以及水的稳定同位素含量进行了详细研究。北部以系舟山断褶带为界。沿该边界北边松散层中排出的三个泉群是东山岩溶地下水深部循环的结果。东山局部系统的地下水可以排入地表河流并以总的向东方向流入滹沱河。由大威山—杨坪望背斜组成的南部边界是不透水的,这就得出结论在榆次附近三叠系中溢出的沅涡泉排除了来自东山岩溶地下水的补给可能。西部边界以三个断裂带作为边界。东山岩溶地下水在该边界北部可以流入太原盆地,在谷旦附近可以补给第四系含水层,而在边界南部东山煤矿附近处在滞流带。

The boundaries of the karst ground water system in the East Mountain have been studied in detail on the basis of geological structure in conjunction with water table and water chemical data, and stable isotope content of the waters. It is bordered on the north by Xizhoushan fault-folding zone. Three spring groups discharge from unconsolidated deposits along the northern side of this boundary are the result of a deep circulation of the karst ground water of the East Mountain. The ground water of the local system in the East Mountain is discharged into surface streams that move in a generally eastward direction to Hutuo river. The southern boundary consisting of Daweishan-Yangpingwang anticline is impermeable, that leads to the conclusion which excludes the possibility of a contribution from the karst ground water of the East Mountain for the Yuanwo spring issuing from Triassic system near Yuci. The East Mountain karst water system is bordered on the west by three fault zones. The karst ground water of the system can flow into Taiyuan basin in the northern part of the west boundary, and can recharge into Quaternary aquifer near Gudan, and is in a stagnant water zone near the East Mountain coal mine in the southern part of the west boundary.