Elsevier

Chemical Geology

Volume 63, Issues 3–4, 5 August 1987, Pages 181-196
Chemical Geology

Research paper
Natural (210Pb, 7Be) and fallout (137Cs, 239,240Pu, 90Sr) radionuclides as geochemical tracers of sedimentation in Greifensee, Switzerland

https://doi.org/10.1016/0009-2541(87)90162-8Get rights and content

Abstract

The average sedimentation rate of Greifensee has been evaluated by using varve counting and 210Pb and fallout radionuclide dating from 4 different sites in the lake, to amount to 0.14 ± 0.02 g cm−2 yr.−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.

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    ∗1

    Present address: Institute of Geochemistry, Academica Sinica, Guiyang, Suizhou Province, The People's Republic of China.

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