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| Minor element variations during the past 1300 years in the varved sediments of Lake Xiaolongwan, north-eastern China | |
| Chu, Guoqiang; Sun, Qing; Li, Shengqiang; Lin, Yuan; Wang, Xiaohua; Xie, Manman; Shang, Wenyu; Li, Aiguo; Yang, Ke | |
| 2013 | |
| Source Publication | GFF
 |
| ISSN | 1103-5897; 2000-0863 |
| Volume | 135Issue:41702Pages:CONCATENATE(Sheet1!I215,-Sheet1!J215) |
| Abstract | Synchrotron radiation X-ray fluorescence measurement provides a nondestructive in situ analysis of elements. We present a high-resolution minor element dataset covering the past 1300 years from the varved sediments in Lake Xiaolongwan. The variations of lithogenic elements (Rb, Sr, Ti, Zn, As and Fe) in the lake sediment show distinct decadal to centennial features during the past 1300 years. The Medieval Warm Period has a low value of lithogenic elements. In contrast, the Little Ice Age may be a period with stronger physical weathering and a higher value of lithogenic elements. Principal components analysis of our geochemical dataset suggests a link between high Rb/Sr ratio and Zr abundance in the sediment that could be related with both chemical weathering process and dust input. The variations of biogenic bromine (factor-3) show a pattern similar to the decadal drought index in Korea. Wet conditions favor bromine accumulation in lake sediment because high precipitation may transport more bromine from forest soil and increase plankton production in the lake. Spectral analysis of factor-3 yields notable periodicities of 2.6, 3.5, 53-55, 87-89 and 105-110 years, implying that precipitation variability for the past 1400 years could be associated with El Nino-Southern Oscillation and solar activity. |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000327571800006 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/13825 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation GB/T 7714 | Chu, Guoqiang,Sun, Qing,Li, Shengqiang,et al. Minor element variations during the past 1300 years in the varved sediments of Lake Xiaolongwan, north-eastern China[J]. GFF,2013,135(41702):CONCATENATE(Sheet1!I215,-Sheet1!J215). |
| APA | Chu, Guoqiang.,Sun, Qing.,Li, Shengqiang.,Lin, Yuan.,Wang, Xiaohua.,...&Yang, Ke.(2013).Minor element variations during the past 1300 years in the varved sediments of Lake Xiaolongwan, north-eastern China.GFF,135(41702),CONCATENATE(Sheet1!I215,-Sheet1!J215). |
| MLA | Chu, Guoqiang,et al."Minor element variations during the past 1300 years in the varved sediments of Lake Xiaolongwan, north-eastern China".GFF 135.41702(2013):CONCATENATE(Sheet1!I215,-Sheet1!J215). |
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| File Name/Size | DocType | Version | Access | License | ||
| Minor element variat（318KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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