【摘要】 本文搜集了38个水样点的水化学数据,这些水样点位于北京平原区的5个地热田。水样点的取水层位均为蓟县系雾迷山组,水样点揭露的地热水均属于同一个含水系统。根据水化学类型分析,该含水系统地下热水径流方向由西北、西南部向东部流动。利用Na-K-Mg三角图和饱和指数选取合适的地热温标,估算了各水样点的热储温度范围。热储温度的空间分布形态呈现北东向为长轴方向的椭圆形,与黄庄—高丽营断裂、良乡—前门断裂、八宝山断裂、顺义断裂、南口—孙河断裂和小汤山断裂等控热断裂有关,且北东向断裂对于温度的控制作用更大,热储温度在断裂交汇处出现高值区域,这些高值区域正是寻找地热的有利地区。更多还原

【Abstract】 This paper collects hydrochemical data from 38 geothermal water samples, and these water samples are located in five geothermal fields in Beijing plain. The water samples are in Wumishan Group of the Jixian System, and the geothermal water all belong to the same aquifer system. Depending on the analysis of the water type, the runoff direction of the geothermal water is from northwest and southwest to the east. By diagram of Na-K-Mg and saturation indices, the suitable geothermometers are selected to calculate the temperature range of geothermal reservoirs of each water samples. The spatial distribution form of the temperatures of geothermal reservoirs is an oval with northeast long axis. As heat controlling faults, Huangzhuang-Gaoliying fault, Liangxiang-Qianmen fault, Babaoshan fault, Shunyi fault, Nankou-Sunhe fault and Xiaotangshan fault control the temperatures of geothermal reservoirs, and the northeast trending faults have mainly control in temperature. The temperature of geothermal reservoirs is higher in fracture intersection zones, and these high value areas are favorable areas for geothermal.更多还原