Observations on Lake Sediments using Fallout 137Cs as a Tracer

@article{Pennington1973ObservationsOL,
  title={Observations on Lake Sediments using Fallout 137Cs as a Tracer},
  author={W S Pennington and T. G. TUTIN and R. S. Cambray and Edwin R. Fisher},
  journal={Nature},
  year={1973},
  volume={242},
  pages={324-326}
}
SIGNIFICANT levels of caesium-137 from tests of nuclear weapons were first detected in the atmosphere in 1954; the maximum deposition1 occurred in 1963. It would be expected that a continuously accumulating lake sediment would incorporate 137Cs from fallout in a distribution pattern similar to that found from regular analysis of rain and air-borne particulate matter, provided that there has been no significant mixing in the sediment by diffusion or by the bottom fauna. Sediments from five lakes… CONTINUE READING

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