Using hydrochemical and stable isotopic (delta H-2, delta O-18, delta B-11, and delta Cl-37) data to understand groundwater evolution in an unconsolidated aquifer system in the southern coastal area of Laizhou Bay, China
文献类型：期刊论文
| 作者 | He, Zekang1,2,3; Ma, Chuanming1; Zhou, Aiguo1; Qi, Huihui1; Liu, Cunfu1; Cai, Hesheng4; Zhu, Huichao2 |
| 刊名 | APPLIED GEOCHEMISTRY
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 90页码:129-141 |
| 关键词 | delta Cl-37 delta B-11 delta H-2 and delta O-18 Quaternary brines Ion filtration Southern plain of Laizhou Bay |
| ISSN号 | 0883-2927 |
| DOI | 10.1016/j.apgeochem.2018.01.003 |
| 通讯作者 | Ma, Chuanming(machuanming@cug.edu.cn) |
| 英文摘要 | This study illustrates the origin of Quaternary brines and groundwater salinization processes at Laizhou Bay using hydrochemical and delta H-2, delta O-18, delta B-11 and delta Cl-37 data. The characteristics of the major ionic components of these brines demonstrated that brines originated from evaporated seawater. The delta H-2 and delta O-18 values of brines showed that seawater underwent strong evaporation and that these brines underwent mixing with paleo-meteoric water or surface water. The fact that the Cl/Br mass ratios of the Laizhou Bay brines (180-291) are lower than that of halite dissolution brine (>1000) contradicts the hypothesis that these brines were derived from halite dissolution, and the fact that the delta Cl-37 values (0.14%-0.21%) of these brines are more enriched than those derived from seawater evaporation represents positive evidence that evaporated seawater in the lagoon infiltrated through clay layer, during which ion filtration resulted in the positive Cl isotopic compositions of these brines. The higher B isotopic compositions (49.88%-64.42%) and lower B/Cl molar ratios (8.5 x 10(-5) similar to 1.6 x 10(-4)) of these brines are consistent with the brine origin determined based on the analysis of Cl isotopes. As the evaporated water infiltrated the clay layer, the preferential adsorption of B-10 onto clay dominated the B isotopic composition of the brine. Five different mixing processes were calculated using B contents and B isotopic compositions. These calculations illustrated that one shallow saline groundwater (No. 05) was derived from the mixing of fresh groundwater and deep brine, thus indicating that brine intrusion occurred in the northern area of Changyi, which was caused by the over-exploitation of fresh groundwater. While one shallow saline groundwater (No. 10) and one deep saline groundwater (No. 12) in the northern of Xiaying were derived from the mixing of brine and seawater. The delta B-11 values of the two shallow brackish groundwater samples were close to that produced by the desorption of B from marine clay, and their B/Cl molar ratios were relatively higher, which demonstrated that B-desorption dominated the characteristic B hydrochemical compositions of brackish groundwater. |
| WOS关键词 | IONIZATION MASS-SPECTROMETRY ; CHLORINE ISOTOPES ; BORON ISOTOPES ; OCEANIC-CRUST ; CL ISOTOPES ; HYDROTHERMAL PROCESSES ; SALINIZED GROUNDWATER ; CLIMATE-CHANGE ; QAIDAM BASIN ; FLUIDS |
| 资助项目 | National Natural Science Foundation of China[41572212] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000424849000011 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/57012]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Ma, Chuanming |
| 作者单位 | 1.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 4.3 Explorat Inst Geol & Mineral Resources, Yantai 264000, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Zekang,Ma, Chuanming,Zhou, Aiguo,et al. Using hydrochemical and stable isotopic (delta H-2, delta O-18, delta B-11, and delta Cl-37) data to understand groundwater evolution in an unconsolidated aquifer system in the southern coastal area of Laizhou Bay, China[J]. APPLIED GEOCHEMISTRY,2018,90:129-141. |
| APA | He, Zekang.,Ma, Chuanming.,Zhou, Aiguo.,Qi, Huihui.,Liu, Cunfu.,...&Zhu, Huichao.(2018).Using hydrochemical and stable isotopic (delta H-2, delta O-18, delta B-11, and delta Cl-37) data to understand groundwater evolution in an unconsolidated aquifer system in the southern coastal area of Laizhou Bay, China.APPLIED GEOCHEMISTRY,90,129-141. |
| MLA | He, Zekang,et al."Using hydrochemical and stable isotopic (delta H-2, delta O-18, delta B-11, and delta Cl-37) data to understand groundwater evolution in an unconsolidated aquifer system in the southern coastal area of Laizhou Bay, China".APPLIED GEOCHEMISTRY 90(2018):129-141. |
入库方式： OAI收割
来源：地理科学与资源研究所
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