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| Geochemical simulation of the formation of brine and salt minerals based on Pitzer model in Caka Salt Lake | |
| 作者姓名： | LIU Xingqi CAI Keqin & YU Shengsong . Nanjing Institute of Geography and Limnology Chinese Academy of Sciences Nanjing China . China University of Geosciences Beijing China . Institute of Salt Lakes Chinese Academy of Sciences Xining China |
| 作者单位： | LIU Xingqi1，CAI Keqin2 & YU Shengsong3 1. Nanjing Institute of Geography and Limnology，Chinese Academy of Sciences，Nanjing 210008，China; 2. China University of Geosciences，Beijing 100083，China; 3. Institute of Salt Lakes，Chinese Academy of Sciences，Xining 810008，China |
| 基金项目： | Chinese Academy of Sciences，Foundation for Doctor of “Brightness for West” |
| 摘 要： | Copyright by Science in China Press 2004 Interactions between ions in natural waters have a great effect on the rates of redox processes1], mineral solubility2] and biochemical availability3,4]. A model describing the variation of activity coefficients with ionic strength, temperature and composition of the solution is required to quantify those effects,thereby it can be used to make many geochemical calculations such as the aqueous speciation of elements, the min-eral sequence, mixing of … |
| 收稿时间： | 16 April 2008 |
Geochemical simulation of the formation of brine and salt minerals based on Pitzer model in Caka Salt Lake |
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| LIU Xingqi,CAI Keqin & YU Shengsong . Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing ,China, . China University of Geosciences,Beijing ,China, . Institute of Salt Lakes,Chinese Academy of Sciences,Xining ,China.Geochemical simulation of the formation of brine and salt minerals based on Pitzer model in Caka Salt Lake[J].Science in China(Earth Sciences),2004,47(8):720-726. | |
| Authors: | |
| Institution: | 1. Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China 2. China University of Geosciences,Beijing 100083,China 3. Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,China |
| Abstract: | The geochemical simulation of the formation of brine and salt minerals based on Pitzer model was made in Caka Salt Lake. The evolution of the mixed surface-water and the mineral sequences were calculated and compared with the hydrochemical compositions of the brine and the salt minerals of the deposit in Caka Salt Lake. The results show that the formation temperature of the lake is between 0°C and 5°C, which is well identical with other studies. The mixing of salt-karst water with the surface waters, neglected by the former researchers, is very important to the formation of the lake, indicating that the initial waters resulting in the formation of the lake are multi-source. It is the first time to use Pitzer model in China for making geochemical simulation of the formation and evolution of inland salt lake and satisfactory results have been achieved. |
| Keywords: | Pitzer model Caka Salt Lake geochemical simulation salt-karst water |
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