| Climatic Signals Recorded in Shells in Xingcuo Lake,Eastern Tibetan Platedu |
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| 作者姓名： | 吴敬禄 俞宏 G.H.Schleser 王苏民 A.LUECKE |
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| 作者单位： | Nanjing Institute of Geog. & Limn.Chinses Academy Sciences，Nanjing Institute of Geog. & Limn.Chinses Academy Sciences，Forschungszentrum Juelich，Nanjing Institute of Geog. & Limn，Forschungszentrum Juelich Nanjing 210008，China，Nanjing 210008，China，Department of Atmospheric Observing Engineering IM，PLAUST，Nanjing 211101，China，ICG-4，D-52425 Juelich，Germany，Chinses Academy Sciences，Nanjing 210008，China，ICG-4，D-52425 Juelich，Germany |
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| 基金项目： | ThisworkwasfundedbytheKeyInnovationProjectoftheChineseAcademyofSciences(KZCX1 -1 0 -0 2 ) ,theNaturalSci enceFundationofChina (Grant:4 980 30 0 1 )andNational“973”projectandCASTibetResearch (No:G1 9980 4 0 80 0 ) . |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＱｕａｎｔｉｔａｔｉｖｅｅｘｔｒａｃｔｉｏｎｏｆｐａｓｔｃｌｉｍａｔｉｃｅｎｖｉｒｏｎｍｅｎｔｉｎｆｏｒｍａｔｉｏｎｉｓａｎｅｗｆｏｃｕｓｏｆａｔｔｅｎｔｉｏｎｉｎｔｈｅｆｉｅｌｄｏｆｇｌｏｂａｌｅｎｖｉｒｏｎｍｅｎｔａｌｃｈａｎｇｅｓ.Ｉｎｔｈｅｒｅｃｅｎｔ 1 0ｙｅａｒｓ,ａｓｅｒｉｅｓｏｆａｃｈｉｅｖｅｍｅｎｔｓｉｎｒｅ ｂｕｉｌｄｉｎｇｔｈｅｓｅｑｕｅｎｃｅｓｏｆｃｌｉｍａｔｉｃａｎｄｅｎｖｉｒｏｎｍｅｎｔａｌｅｖｏｌｕｔｉｏｎｓｉｎｖａｒｉｏｕｓｓｃａｌｅｓｈａｖｅ…
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| 关 键 词： | 气候标志 西藏高原 示踪元素 稳定同位素 湖泊沉积物 气候变化 碳同位素 氧同位素 |
| 收稿时间： | 28 June 2001 |
| 修稿时间： | 20 April 2002 |
Climatic signals recorded in shells in Xingcuo Lake,eastern Tibetan Plateau |
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| Wu?Jinglu,Yu?Hong,G.?H.?Schleser,Wang?Sumin,A.?Luecke.Climatic Signals Recorded in Shells in Xingcuo Lake,Eastern Tibetan Platedu[J].Chinese Journal of Oceanology and Limnology,2003,21(1):10-17. |
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| Authors: | Wu Jinglu Yu Hong G H Schleser Wang Sumin A Luecke |
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| Institution: | (1) Nanjing Institute of Geog. & Limn., Chinses Academy Sciences, 210008 Nanjing, China;(2) Department of Atmospheric Observing Engineering IM, PLAUST, 211101 Nanjing, China;(3) Forschungszentrum Juelich, IGG-4, D-52425 Juelich, Germany |
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| Abstract: | This paper presents the results of determining trace elements and σ13C, σ18O inGyraulus sibirica shell continuously preserved in Xingcuo Lake sediments in the recent 50 years. By coupling these indexes and instrumental
meteorological data on its basin to determine the relations among them, we probed quantitatively the climatic signals recorded
in Xingcuo Lake sediments. The results showed that gastropod shells in Xingcuo Lake were formed in warm seasons; that trace
elements, and stable isotope in shells just recorded the climatic signals of the warm seasons instead of that of the whole
year; that Mg/Ca ratio and σ18 proxy had certain correlation with air temperature in warm seasons, when the σ18 proxy was more sensitive; with the average ratio of them being 0.28×10−3/1C and the variation rate dσ18O/dT being 1.64×10−3/1C; that the Sr/Ca ratio and σ13C proxy, especially Sr/Ca ratio, had close correlation; and that dSr/Ca/dP was −0.045/mm.
This work was funded by the Key Innovation Project of the Chinese Academy of Sciences (KZCX1-10-02), the Natural Science Fundation
of China (Grant: 49803001) and National “973” project and CAS Tibet Research (No: G1998040800). |
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| Keywords: | Xingcuo Lake eastern Tibetan Plateau trace elements stable isotopes |
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