河北和北京北部部分温泉特征

发布时间：2018-03-30 10:23

  本文选题：河北　切入点：北京　出处：《中国地质大学(北京)》2017年硕士论文

【摘要】：地热是一种清洁能源,通过温泉和地热井的方式可以开发利用。分析温泉的形成条件、水化学特征及同位素特征,探讨温泉的成因,有助于合理高效地利用地热资源为人类服务。研究区位于河北省北部和北京市北部,主要涉及温泉和自流热水井共计5处,包括河北赤城县塘子庙温泉(A3)涉及泉眼13个,丰宁县洪汤寺温泉(A9)、杨树沟地热井(A26)、和砬子底下地热井(A30),以及北京怀柔区塘泉沟温泉(BHR20)。研究区所出露的地层有太古界混合岩和元古代、古生代、中生代和新生代沉积岩地层以及燕山期花岗岩体。研究区有4条深大断裂:尚义-赤城深大断裂、上黄旗-乌龙沟深断裂、丰宁-隆化深断裂和赤城孙庄子-石灰窑正断层。岩性类型较为多样结构复杂。研究区温泉的水温30.6-60℃,属于中低温温泉,pH值偏弱碱性,矿化度280-777mg/L,属于淡水。各温泉水化学类型除A9为SO4·HCO3-Na型以外,其它温泉为Na-SO4型水。各温泉锶的含量0.320-1.68mg/L,锂的含量0.2-0.78mg/L,均已达到含锶、锂矿泉水的命名标准,具有显著的理疗保健作用。温泉的特征组分F-含量在7.36-15.6mg/L,偏硅酸的含量在40.8-117mg/L,且大部分温泉偏硅酸的含量达到了硅水的命名标准。研究区温泉热水的δ2H在-97.3‰~-69.2‰,δ18O为-9.7‰~-13.6‰,显示大气降水为其补给来源,利用δ2H和δ18O计算得出补给区高程为763.83-1371.24m,补给区平均气温3.07-7.07℃。由镭-氡法计算温泉热水的年龄247.33-2036.39a。通过运用玉髓温标计算塘子庙温泉(A3)、洪汤寺温泉(A9)、杨树沟地热井(A26)和砬子底下地热井(A30)热水的热储温度71.96-97.69℃,属于中低温型热储。热水的循环深度2208.99-3016.17m。通过温泉成因模式分析,初步认为塘子庙温泉群主要是断层破碎带和岩性共同控制,造成了温泉在安山岩和混合岩接触部位分散出露;洪汤寺温泉主要受断裂控制;杨树沟地热井和砬子底下地热井主要是井孔揭穿燕山期花岗岩总的破碎带,热水沿井孔上升,使地下热水开采从无到有而增加。
[Abstract]:Geothermal is a kind of clean energy, which can be developed and utilized by means of hot springs and geothermal wells. The formation conditions, hydrochemical characteristics and isotopic characteristics of hot springs are analyzed, and the origin of hot springs is discussed. The research area is located in the northern part of Hebei Province and the northern part of Beijing, with a total of 5 hot springs and artesian hot water wells, including 13 springs in Tangzimiao Hot Springs, Chicheng County, Hebei Province. Hongtangsi Hot Springs, Fengning County, Yangshugou Geothermal well A26, Heilazi Geothermal well A30, and Tangquangou Hot Springs in Huairou District, Beijing, BHR200.The strata exposed in the study area include Archean migmatite, Proterozoic, Paleozoic, and Paleozoic. Mesozoic and Cenozoic sedimentary lithostratigraphy and Yanshanian granitic body. There are four deep and large faults in the study area: Shangyi-Chicheng deep fault, Shanghuangqi-Wulonggou deep fault, Fengning-Longhua deep fault and Chicheng Sunzhuangzi-Limestone normal fault. The lithologic types are complicated. The water temperature of the hot spring in the study area is 30.6-60 鈩，

本文编号：1685505