秦皇岛市温泉堡附近有3处温泉.1号和2号温泉是燕山期花岗岩地下破碎带热水储集带的排泄点,3号温泉的出露受断裂控制,是下寒武统府君山组灰岩岩溶含水层的排泄点.地下热水矿化度小于260 mg/L,F-含量达5 mg/L以上,水化学类型属于Na·Ca-HCO3·SO4型.同位素研究结果表明,温泉的补给来源为大气降水,1号温泉水年龄约19 a.利用SiO2温标法计算出热储温度为94.01℃;估算热水循环深度为2792.45m.温泉的天然放热量大于25.13×10^13 J/a,温泉堡地区的地热资源量达7.29×10^14 J以上.1号和2号温泉的开采量不宜超过其天然流量,3号温泉流量大,尚有开发潜力.
Three hot springs occur near Wenquanpu in Qinhuangdao City, Hebei. The Nos. 1 and 2 hot springs are discharge points of thermal groundwater of underground fractured zones in the Yanshanian granite. The occurrence of hot spring No. 3 is controlled by faults, and it is the discharge point of groundwater in the karst aquifer in the Lower Cambrian Fujunshah Formation. The thermal groundwater has a total dissolved solids content of 〈260 mg/L a fluoride content of 〉5 mg/L and is hydrochemically of Na-Ca-HCO3·SO4 type. Isotopic analysis indicates that the hot springs are recharged by meteoric water and the age of hot spring No.1 is 19 a. The temperature of the geothermal reservoir, which is calculated with the SiO2 geothermometer, is 94.01℃. The thermal groundwater is estimated to circulate at 2792.45 m depth. The natural heat discharge of the hot springs is 〉25.13×10^13 J/a and the geothermal resources in the Wenquanpu area is 〉7.29×10^14 J. The withdrawal rates of hot spring Nos. 1 and 2 should not exceed their natural discharges. Hot spring No. 3 has further potenfal to be exploited owing to its large discharge.