| Geochemical Constraints on the Origin and Evolution of Spring Waters in the Changdu-Lanping-Simao Basin, Southwestern China | |
Qin, Xiwei; Ma, Haizhou ; Zhang, Xiying; Cheng, Huaide; Han, Jibin; Li, Yongshou; Miao, Weiliang; Hai, Qingyu
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| 2019-08 | |
| 发表期刊 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
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| ISSN | 1000-9515 |
| 卷号 | 93期号:4页码:1097-1112 |
| 摘要 | 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 similar to 1 suggest that halite, sulphate, and carbonate are the solute sources. Integration of geochemical, delta O-18, and delta D 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 delta B-11 values of -4.37 parts per thousand to +32.39 parts per thousand, indicating a terrestrial source. The delta B-11-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 delta B-11 values of saline springs (+4.61 parts per thousand to +32.39 parts per thousand) exceed those of hot (-4.37 parts per thousand to +4.53 parts per thousand) and cold (-3.47 parts per thousand to +14.84 parts per thousand) springs; this has contributed to strong water-rock interactions and strong saturation of dissolved carbonates. Conversely, the global geothermal delta B-11-Cl/B relationship suggests mixing of marine and non-marine sources. The delta B-11-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. |
| DOI | 10.1111/1755-6724.13853 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34027 |
| 专题 | 盐湖地质与环境实验室 中国科学院青海盐湖研究所 |
| 推荐引用方式 GB/T 7714 | Qin, Xiwei,Ma, Haizhou,Zhang, Xiying,et al. Geochemical Constraints on the Origin and Evolution of Spring Waters in the Changdu-Lanping-Simao Basin, Southwestern China[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2019,93(4):1097-1112. |
| APA | Qin, Xiwei.,Ma, Haizhou.,Zhang, Xiying.,Cheng, Huaide.,Han, Jibin.,...&Hai, Qingyu.(2019).Geochemical Constraints on the Origin and Evolution of Spring Waters in the Changdu-Lanping-Simao Basin, Southwestern China.ACTA GEOLOGICA SINICA-ENGLISH EDITION,93(4),1097-1112. |
| MLA | Qin, Xiwei,et al."Geochemical Constraints on the Origin and Evolution of Spring Waters in the Changdu-Lanping-Simao Basin, Southwestern China".ACTA GEOLOGICA SINICA-ENGLISH EDITION 93.4(2019):1097-1112. |
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