气候变化领域集成服务门户(CCPortal): Origin and Circulation of Springs in the Nangqen and Qamdo Basins, Southwestern China, Based on Hydrochemistry and Environmental Isotopes

CCPortal

DOI	10.1155/2022/7190994
	Origin and Circulation of Springs in the Nangqen and Qamdo Basins, Southwestern China, Based on Hydrochemistry and Environmental Isotopes
	Qin, Xiwei; Ma, Haizhou; Zhang, Xiying; Hu, Xiasong; Li, Guorong; Cheng, Huaide; Han, Jibin; Li, Yongshou; Miao, Weiliang; Han, Wenhua; Yang, Sha; Song, Qian; Wu, Mei
通讯作者	Qin, XW (通讯作者)，Qinghai Univ, Dept Geol Engn, Xining 810016, Peoples R China. ; Qin, XW (通讯作者)，Chinese Acad Sci, Qinghai Inst Salt Lakes, Northwest Inst Ecoenvironm & Resources, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China. ; Qin, XW (通讯作者)，Chinese Acad Sci, Qinghai Inst Salt Lakes, Northwest Inst Ecoenvironm & Resources, Key Lab Salt Lake Geol & Environm Qinghai Prov, Xining 810008, Peoples R China.
发表日期	2022
ISSN	1468-8115
EISSN	1468-8123
卷号	2022
英文摘要	The Nangqen and Qamdo (NQ-QD) basins in China have very rich geothermal and brine resources. The origin and spatiotemporal evolutionary processes of its hot and saline springs however remain unclear. Geochemical and isotopic (O-18, H-2, H-3) studies have therefore been conducted on the water from the geothermal and saline springs in the NQ-QD Basin. All saline springs in the study area are of the Na-Cl geochemical type while geothermal waters show different geochemical types. The oxygen and hydrogen isotopic compositions of the springs in the NQ-QD Basin are primarily controlled by meteoric water or ice-snow melt water and are influenced by rock-water interactions. It is found that the saline springs in the study area are derived from the dissolution of halite and sulfate that occur in the tertiary Gongjue red bed, while the hot springs in the QD Basin are greatly influenced by the dissolution of carbonatites and sulfates from the Bolila (T(3)b) and Huakaizuo (J(2)h) formations. Results from silica geothermometry and a silicon-enthalpy hybrid model indicate that the apparent reservoir temperatures and reservoir temperatures for the hot springs in the QD Basin range from 57-130 degrees C to75-214 degrees C, respectively. Deuterium analysis indicates that most of the hot springs are recently recharged rain water. Furthermore, the saline springs have a weaker groundwater regeneration capacity than the hot springs. Tritium data shows that the ranges of calculated residence times for springs in this study are 25 to 55 years, and that there is a likelihood that hot springs in the QD Basin originated from two different hydrothermal systems. The geochemical characteristics of the NQ-QD springs are similar to those of the Lanping-Simao Basin, indicating similar solute sources. Thus, the use of water isotope analyses coupled with hydrogeochemistry proves to be an effective tool to determine the origin and spatiotemporal evolution of the NQ-QD spring waters.
关键词	LIQUID WATER EQUILIBRATION AQUEOUS SALT-SOLUTIONS LANPING-SIMAO BASIN THERMAL WATERS WESTERN YUNNAN GROUNDWATER RECHARGE HYDROGEN ISOTOPES QINGHAI PROVINCE GEOTHERMAL-FIELD STABLE-ISOTOPES
语种	英语
WOS研究方向	Geochemistry & Geophysics ; Geology
WOS类目	Geochemistry & Geophysics ; Geology
WOS记录号	WOS:000775569800003
来源期刊	GEOFLUIDS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253945
作者单位	[Qin, Xiwei; Hu, Xiasong; Li, Guorong; Yang, Sha; Song, Qian; Wu, Mei] Qinghai Univ, Dept Geol Engn, Xining 810016, Peoples R China; [Qin, Xiwei; Ma, Haizhou; Zhang, Xiying; Cheng, Huaide; Han, Jibin; Li, Yongshou; Miao, Weiliang; Han, Wenhua] Chinese Acad Sci, Qinghai Inst Salt Lakes, Northwest Inst Ecoenvironm & Resources, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China; [Qin, Xiwei; Ma, Haizhou; Zhang, Xiying; Cheng, Huaide; Han, Jibin; Li, Yongshou; Miao, Weiliang; Han, Wenhua] Chinese Acad Sci, Qinghai Inst Salt Lakes, Northwest Inst Ecoenvironm & Resources, Key Lab Salt Lake Geol & Environm Qinghai Prov, Xining 810008, Peoples R China; [Han, Wenhua] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Qin, Xiwei,Ma, Haizhou,Zhang, Xiying,et al. Origin and Circulation of Springs in the Nangqen and Qamdo Basins, Southwestern China, Based on Hydrochemistry and Environmental Isotopes[J]. 中国科学院西北生态环境资源研究院,2022,2022.
APA	Qin, Xiwei.,Ma, Haizhou.,Zhang, Xiying.,Hu, Xiasong.,Li, Guorong.,...&Wu, Mei.(2022).Origin and Circulation of Springs in the Nangqen and Qamdo Basins, Southwestern China, Based on Hydrochemistry and Environmental Isotopes.GEOFLUIDS,2022.
MLA	Qin, Xiwei,et al."Origin and Circulation of Springs in the Nangqen and Qamdo Basins, Southwestern China, Based on Hydrochemistry and Environmental Isotopes".GEOFLUIDS 2022(2022).