Geochemical Constraints on the Origin and Evolution of Spring Waters in the Changdu-Lanping-Simao Basin, Southwestern China
Xiwei QIN
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
University of Chinese Academy of Sciences, 100049 Beijing China
Search for more papers by this authorCorresponding Author
Haizhou MA
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Corresponding author. E-mail: [email protected]Search for more papers by this authorXiying ZHANG
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Search for more papers by this authorHuaide CHENG
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Search for more papers by this authorJibin HAN
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
School of Environmental Studies, China University of Geosciences, 430074 Wuhan China
Search for more papers by this authorYongshou LI
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Search for more papers by this authorWeiliang MIAO
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Search for more papers by this authorQingyu HAI
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
University of Chinese Academy of Sciences, 100049 Beijing China
Search for more papers by this authorXiwei QIN
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
University of Chinese Academy of Sciences, 100049 Beijing China
Search for more papers by this authorCorresponding Author
Haizhou MA
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Corresponding author. E-mail: [email protected]Search for more papers by this authorXiying ZHANG
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Search for more papers by this authorHuaide CHENG
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Search for more papers by this authorJibin HAN
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
School of Environmental Studies, China University of Geosciences, 430074 Wuhan China
Search for more papers by this authorYongshou LI
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Search for more papers by this authorWeiliang MIAO
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Search for more papers by this authorQingyu HAI
Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Qinghai Institute of Salt Lakes, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 810008 Xining China
University of Chinese Academy of Sciences, 100049 Beijing China
Search for more papers by this authorAbout the first author:
QIN Xiwei, male, born in 1989 in Haidong City, Qinghai Province; doctoral student; studying at University of Chinese Academy of Sciences; major in Mineralogy, petrology, mineral geology. He is now interested in the study on evaporite element and isotope geochemistry. Email: [email protected]; phone: 13897418165.
About the corresponding author:
MA Haizhou, male, born in 1963 in Haidong City, Qinghai Province; doctor; graduated from Lanzhou university; researcher of the Qinghai Institute of Salt Lakes (ISL) of the Chinese Academy of Sciences (CAS), He is now interested in the study on evaporite ore deposit. Email: [email protected]; phone: 13909713049.
Abstract
Chemical and isotopic data were measured for 51 leached brine springs in the Changdu-Lanping-Simao Basin (CD-LP-SM), China. The predominance of Cl and Na, saturation indices of carbonate minerals, and Na/Cl and Ca/SO4 ratios of ∼1 suggest that halite, sulphate, and carbonate are the solute sources. Integration of geochemical, δ18O, and δD values suggests that springs are mainly derived from meteoric water, ice-snow melt, and water-rock interactions. B concentrations range from 0.18 to 11.9 mg/L, with δ11B values of –4.37‰ to +32.39‰, indicating a terrestrial source. The δ11B-B relationships suggest B sources of crustal origin (marine carbonates with minor crust-derived volcanics); we did not identify a marine or deep mantle origin. The δ11B values of saline springs (+4.61‰ to +32.39‰) exceed those of hot (–4.37‰ to +4.53‰) and cold (–3.47‰ to +14.84‰) springs; this has contributed to strong water-rock interactions and strong saturation of dissolved carbonates. Conversely, the global geothermal δ11B-Cl/B relationship suggests mixing of marine and non-marine sources. The δ11B-Cl/B relationships of the CD-LP-SM are similar to those of the Tibet geothermal belt and the Nangqen Basin, indicating the same B origin. These differ from thermal waters controlled by magmatic fluids and seawater, suggesting that B in CD-LP-SM springs has a crustal origin.
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