Provenance of Chinese Loess: Evidence from Stable Lead Isotope | |
Wu, F (Wu, Feng)[1]; Ho, SSH (Ho, Steven Sai Hang)[1,2]; Sun, QL (Sun, Qianli)[3]; Ip, SHS (Ip, Simon Ho Sai)[2] | |
2011-06-30 | |
发表期刊 | TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES |
卷号 | 22期号:3页码:305-314 |
文章类型 | 期刊论文 |
摘要 | Twenty-seven samples of typical loess and paleosol strata collected in nine different regions of the Chinese Loess Plateau (CLP) were fractionated into PM(1.0), PM(2.5), PM(10) and Total Suspended Particulates (TSP) (particulate matter with aerodynamic diameters less than 1.0, 2.5, 10 and 30 mu m, respectively) by a resuspension chamber at the Desert Research Institute (DRI; Reno, NV, United States). The amounts and isotope ratios of lead (Pb) were quantified in the loess samples. Our size-segregated analysis demonstrated that the Pb isotopic composition in the loess-paleosol deposits was preserved after grain-size sorting and that therefore the isotope ratio can serve as a proxy for source tracing. A similar pattern of Pb isotope ratios was observed for sediment collected from potential source regions and the loess samples suggested that the Gobi and deserts in southern Mongolia and northern China are major sources for the deposits in the CLP. No significant deviation of Pb isotope amount was found between the nine samples of loess and paleosol strata, implying the stability of loess sources during the glacial and interglacial regime. |
关键词 | Stable lead isotope Size fractions Provenance Chinese Loess Plateau |
DOI | 10.3319/TAO.2010.11.19.01(TT) |
收录类别 | SCI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/10273 |
专题 | 粉尘与环境研究室 |
通讯作者 | Wu, F (Wu, Feng)[1] |
作者单位 | 1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment,Chinese Academy of Sciences, Shaanxi, China; 2.Hong Kong Premium Services and Research Laboratory, Hong Kong, China; 3.State Key Laboratory for Estuarine and Coastal Research, East China Normal University, Shanghai, China |
推荐引用方式 GB/T 7714 | Wu, F ,Ho, SSH ,Sun, QL ,et al. Provenance of Chinese Loess: Evidence from Stable Lead Isotope[J]. TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES,2011,22(3):305-314. |
APA | Wu, F ,Ho, SSH ,Sun, QL ,&Ip, SHS .(2011).Provenance of Chinese Loess: Evidence from Stable Lead Isotope.TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES,22(3),305-314. |
MLA | Wu, F ,et al."Provenance of Chinese Loess: Evidence from Stable Lead Isotope".TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES 22.3(2011):305-314. |
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