Natural (210Pb, 7Be) and fallout (137Cs, 239,240Pu, 90Sr) radionuclides as geochemical tracers of sedimentation in Greifensee, Switzerland
Natural (210Pb, 7Be) and fallout (137Cs, 239,240Pu, 90Sr) radionuclides as geochemical tracers of sedimentation in Greifensee, Switzerland
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DOI：
10.1016/0009-2541(87)90162-8
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发表时间：
1987-08
期刊：
影响因子：
3.9
通讯作者：
G. Wan;P. Santschi;M. Sturm;Klaus. Farrenkothen;Alfred. Lueck;E. Werth;C. Schuler
中科院分区：
文献类型：
--
作者：
G. Wan;P. Santschi;M. Sturm;Klaus. Farrenkothen;Alfred. Lueck;E. Werth;C. Schuler
格赖芬湖的平均沉积速率是通过使用纹管计数和210 Pb以及从湖内4个不同地点测得的放射性核素年代来评估的，为0.14 ± 0.02 g cm− 2 yr −1。格赖芬湖的地质年代学与之前基于湖最深处沉积物纹纹计数的测年尝试相一致（Emerson和Widmer，1978年）。一个简单的侵蚀模型主要来自流域的物质可以解释的天然和沉降物的放射性核素在湖泊沉积物中的库存。
The average sedimentation rate of Greifensee has been evaluated by using varve counting and210Pb and fallout radionuclide dating from 4 different sites in the lake, to amount to 0.14 ± 0.02 g cm−2yr.−1. The geochronology of Greifensee agrees with previous dating attempts based on varve counting of sediments from the deepest part of the lake (Emerson and Widmer, 1978). A simple erosion model for substances derived predominantly from the drainage basin can explain the inventories of the natural and fallout radionuclides in the lake sediments.