摘要
为了解曲乃亥温泉的地下热储特征,对温泉口及周边蚀变岩体的样品进行X射线粉晶衍射分析(XRD)和便携式短波红外矿物分析(PIMA)。结果表明:热水沉积物的种类有硅华、硫华、钙华、盐华、浊沸石;水热蚀变矿物为蒙脱石和高岭石。通过对这些矿物的分析和SiO2温标的热储温度估算,曲乃亥地下热储温度大致为170~200℃,印证了区域上存在干热岩的可能性。
In order to understand the underground thermal storage characteristics of Qu Naihai hot spring, field sampling of hot springs and surrounding altered rock masses were analyzed by XRD and PIMA tests. The results showed that the types of hydrothermal sedimentation include silicon,sulphur, travertine, salt, and laumontite;Hydrothermal alteration minerals are montmorillonite and kaolinite. Through the analysis of these minerals and the temperature of geothermal reservoirs estimation of SiO2 temperature standard in Qu Naihai, the temperature of underground thermal storage in Qu Naihai is about 170 -200℃, which confirms the possibility of dry hot rock in the area.
作者
孔令添
黎敦朋
张森琦
罗坤
KONG Lingtian;LI Dunpeng;ZHANG Senqi;LUO Kun(College of Zijin Mining, Fuzhou University, Fuzhou 350108, China;Center for Hydrogeologyand Environmental Geology Survey, China Geological Survey, Baoding 071051, China)
出处
《青海大学学报（自然科学版）》
2019年第4期83-89,共7页
Journal of Qinghai University(Natural Science)
基金
中国地质调查局项目(DD20179621)
关键词
曲乃亥
热水沉积
水热蚀变
热储温度
Qu Naihai
hydrothermal sediment
hydrothermal alteration
temperature of geothermal reservoirs
