摘要
利川市忠路地区具有丰富的地热水资源,为研究该区地热水化学特征及其补给来源,采集地热水、冷泉与河水样品进行水质全分析及氢、氧、硫同位素分析。研究表明,该区地热水类型为SO4-Ca·Mg型,热储温度为44.7~53.0℃,地热水循环深度为1505.5~1918.5 m;地热水补给来源主要为大气降水,补给高程为1455.4~1507.1 m;大气降水在入渗循环过程中与嘉陵江组碳酸盐岩地层发生以石膏溶解为主的水岩相互作用。综合分析认为,忠路地区地热水补给区主要为忠路向斜北西翼。该项研究成果可为该区地热水的进一步勘查和开发提供依据。
Zhonglu area of Lichuan City is rich in geothermal water resources.In order to study the chemical characteristics and recharge source of geothermal water in this area,geothermal water,cold spring and river water samples were collected for water quality analysis and hydrogen,oxygen and sulfur isotope analysis.The research shows that the geothermal water is SO4-Ca·Mg type,the thermal storage temperature is 44.7~53.0℃,and the geothermal water circulation depth is 1505.5~1918.5 m.The main recharge source of geothermal water is atmospheric precipitation,and the recharge elevation is 1455.4~1507.1 m.In the process of infiltration circulation,atmospheric precipitation interacted with gypsum dissolved water and rock in the carbonate strata of Jialingjiang Formation.Comprehensive analysis shows that the geothermal water recharge area is mainly northwest wing of Zhonglu syncline.The research results can provide basis for further exploration and development of geothermal water in this area.
作者
李泽威
万凯
钱镭
袁飞
郝智敏
Li Zewei;Wan Kai;Qian Lei;Yuan Fei;Han Zhimin(Second Geological Brigade of Hubei Geological Bureau,Enshi,Hubei 445000)
出处
《资源环境与工程》
2021年第5期685-690,共6页
Resources Environment & Engineering
基金
湖北省地质勘查基金项目——湖北省利川市忠路地热资源预可行性勘查([2019]35)。
关键词
地热水
水质分析
氢氧同位素
硫同位素
补给来源
忠路地区
geothermal water
water quality analysis
hydrogen and oxygen isotopes
sulfur isotope
recharge source
Zhonglu area
