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Geochemistry and genesis of geothermal well water from a carbonate-evaporite aquifer in Chongqing, SW China
Yang, Pingheng1,2,3; Dan, Luo1; Groves, Chris3; Xie, Shiyou1
2019
发表期刊ENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
卷号78期号:1页码:14
摘要Thermal water is an importantnatural resource. The hydrogeochemistry and geothermometry of thermal water from theQianyi well (TWQW), which is associated withthe Tongjing Warm Springs located in the Eastern Sichuan Fold Belts in Chongqing, SW China, was investigated. The reservoir of this region consists of upper and middle Triassic carbonate and evaporiterocks. The TWQW was of Ca-Mg-SO4 type with water temperature of 47.3 degrees C. Plotting on the Giggenbach Na-K-Mg diagram indicates that the TWQW was immature due to a mixing of shallow karst groundwater and thermal water. The mixing model indicates that the TWQW was composed of 49% deep thermal water and 51% shallow karst groundwater. Geothermometers suggest a reservoir temperature of about 79 degrees C, locating this aquifer at a depth of similar to 2.5km. The D and O-18 values plot near the local meteoric water line, suggesting that the TWQW originates from local meteoric water at recharge elevations of similar to 780-1160m a.s.l.. A conceptual model of thegenesis for Tongjing Warm Springs was developed. Rainfall infiltrates via karst outcrops in the elevated areas of thenorthern Tongluoxia anticline, extracts heat from reservoir rocks at depth, dissolves minerals and becomes thermal water. The thermal water is driven by gravity, flows through thecarbonate-evaporite aquifer, and follows the Tongluoxia anticline of the Eastern Sichuan Fold Belts to the southwest. The thermal water ascends to the surface along the incision created by the Wentang River and mixes with shallow karst groundwater to create warm springs. This study may be relevant toother karst geothermal reservoirs in China.
关键词Carbonate-evaporite Thermal water Reservoir temperature Mixture fraction Geothermometer Tongjing China
DOI10.1007/s12665-018-8004-3
资助者Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council (CSC) ; China Scholarship Council (CSC)
关键词[WOS]KARST GROUNDWATER ; SPRING WATERS ; THERMAL WATER ; HYDROGEOCHEMISTRY ; NITRATE ; SYSTEM ; BASIN ; EQUILIBRIA ; PRESSURE ; SULFATE
语种英语
资助项目Fundamental Research Funds for the Central Universities[XDJK2018AB002] ; China Scholarship Council (CSC)
资助者Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Scholarship Council (CSC) ; China Scholarship Council (CSC)
WOS研究方向Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号WOS:000455022900004
出版者SPRINGER
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/90190
专题页岩气与地质工程院重点实验室
通讯作者Yang, Pingheng
作者单位1.Southwest Univ, Field Sci Observat & Res Base Karst Ecoenvironm N, Minist Nat Resources Peoples Republ China, Chongqing Key Lab Karst Environm,Sch Geog Sci, Chongqing 400715, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.Western Kentucky Univ, Crawford Hydrol Lab, Dept Geog & Geol, 1906 Coll Hts Blvd, Bowling Green, KY 42101 USA
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GB/T 7714
Yang, Pingheng,Dan, Luo,Groves, Chris,et al. Geochemistry and genesis of geothermal well water from a carbonate-evaporite aquifer in Chongqing, SW China[J]. ENVIRONMENTAL EARTH SCIENCES,2019,78(1):14.
APA Yang, Pingheng,Dan, Luo,Groves, Chris,&Xie, Shiyou.(2019).Geochemistry and genesis of geothermal well water from a carbonate-evaporite aquifer in Chongqing, SW China.ENVIRONMENTAL EARTH SCIENCES,78(1),14.
MLA Yang, Pingheng,et al."Geochemistry and genesis of geothermal well water from a carbonate-evaporite aquifer in Chongqing, SW China".ENVIRONMENTAL EARTH SCIENCES 78.1(2019):14.
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