Carbon isotopes in surface-sediment carbonates of modern Lake Qinghai (Qinghai-Tibet Plateau): Implications for lake evolution in arid areas
文献类型：期刊论文
| 作者 | Li, Xiangzhong1; Liu, Weiguo1,2; Xu, Liming3 |
| 刊名 | CHEMICAL GEOLOGY
 |
| 出版日期 | 2012-03-18 |
| 卷号 | 300页码:88-96 |
| 关键词 | Carbon Isotopes Ostracods Bulk Carbonate Fine-grained Carbonates Dissolved Inorganic Carbon Lake Qinghai |
| 文献子类 | Article |
| 英文摘要 | To further investigate the significance of carbon isotopes of lake carbonates in arid areas, we examined the carbon isotopic composition of ostracods, bulk carbonate, fine-grained carbonates, and associated water DIC (dissolved inorganic carbon) from Lake Qinghai and several small lakes and ponds surrounding Lake Qinghai. We obtained three major results. 1) The carbon isotopic compositions of ostracods, bulk carbonate, and fine-grained carbonates in the lakes and ponds are clearly correlated with water delta C-13(DIC) values, which vary with water salinity in the Lake Qinghai area. 2) The variation in the delta C-13(DIC) values of lake water is mainly controlled by CO2 exchanges between the atmosphere and lake waters in the Lake Qinghai area. 3) Ostracods, bulk carbonate and fine-grained carbonates show consistent trends of isotopic composition in the study area, and the differences in carbon isotopic composition between authigenic carbonates and ostracods may be explained by the differences in carbon isotopic composition between the DIC of surface water and that of the water near to the sediment-water interface as well as the 'vital offsets' of ostracods. |
| WOS关键词 | DISSOLVED INORGANIC CARBON ; STABLE-ISOTOPE ; OXYGEN-ISOTOPE ; LACUSTRINE CARBONATES ; ENVIRONMENTAL-CHANGE ; CLIMATE RECORD ; FRACTIONATION ; CHINA ; GEOCHEMISTRY ; OSTRACODS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000302762400009 |
| 源URL | [http://ir.isl.ac.cn/handle/363002/5592]  |
| 专题 | 青海盐湖研究所_青海盐湖研究所知识仓储 中国科学院青海盐湖研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 2.Xi An Jiao Tong Univ, Sch Human Settlement & Civil Engn, Xian 710049, Peoples R China 3.CAS, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiangzhong,Liu, Weiguo,Xu, Liming. Carbon isotopes in surface-sediment carbonates of modern Lake Qinghai (Qinghai-Tibet Plateau): Implications for lake evolution in arid areas[J]. CHEMICAL GEOLOGY,2012,300:88-96. |
| APA | Li, Xiangzhong,Liu, Weiguo,&Xu, Liming.(2012).Carbon isotopes in surface-sediment carbonates of modern Lake Qinghai (Qinghai-Tibet Plateau): Implications for lake evolution in arid areas.CHEMICAL GEOLOGY,300,88-96. |
| MLA | Li, Xiangzhong,et al."Carbon isotopes in surface-sediment carbonates of modern Lake Qinghai (Qinghai-Tibet Plateau): Implications for lake evolution in arid areas".CHEMICAL GEOLOGY 300(2012):88-96. |
入库方式： OAI收割
来源：青海盐湖研究所
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