摘要
江淮生态经济区东南部地热资源潜力巨大,合理开采利用地热能是经济区绿色可持续发展的重要保障。为确定研究区的地热水成因机理,通过分析研究区地质地热条件,利用水化学与同位素示踪,精准确定了补给区、热储温度及地热水循环深度,明确了研究区的地热水成因机理。结果表明:江淮生态经济区东南部地区地热资源成因主要为传导型和中低温对流型;该地区地热水来自于大气降水,其补给区为张八岭丘陵区和宁镇山脉,补给高程范围为189.18~405m,循环深度为1.98~4.36km。
The potential of geothermal resources in Southeast of Jianghuai Ecological Economic Zone is huge,and the rational exploitation and utilization of geothermal energy is an important guarantee for the green and sustainable development of the economic zone.In order to determine the formation mechanism of geothermal water in the study area,by analyzing the geological and geothermal conditions of the study area,using water chemistry and isotope tracing,the replenishment area,heat storage temperature and geothermal water circulation depth were accurately determined,and the mechanism of geothermal water formation in the study area was clarified.The results show that the geothermal resources in the southeast region of Jianghuai Ecological Economic Zone are mainly caused by conduction and low-temperature convection.And the geothermal water source in this area comes from atmospheric precipitation which replenishment areas are Zhangbaling hilly area and Ningzhen mountain and it is recharged at the elevation from 189.18 to 405m,and the cycle depth is 1.98 to 4.36km.
作者
成磊
骆祖江
张也|
Cheng Lei;Luo Zujiang;Zhang Ye(College of Earth Science and Engineering,Hohai University,Nanjing 211100,China)
出处
《工程勘察》
2021年第4期28-35,共8页
Geotechnical Investigation & Surveying
基金
江苏省地质勘查基金项目(2018-96-13).
关键词
地热水
成因
同位素
水化学
geothermal water
genetic causes
isotope
hydrochemistry
