CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
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 PublicationGFF
ISSN1103-5897; 2000-0863
Volume135Issue:41702Pages:CONCATENATE(Sheet1!I215,-Sheet1!J215)
AbstractSynchrotron 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 BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000327571800006
Citation statistics
Document Type期刊论文
Identifierhttp://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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