Abstract
The upper 90 cm of Black Sea basin sediment with an aereal extension of 2.96 × 105 km2 has an U3O8 content of 6.7 × 106 tonnes. Plankton is the prime agent for uranium fixation. Reducing conditions at depth permit uranium to accumulate over the past 5,000 yr. Energetically self-sufficient burning of the top 1-m strata will lead to U3O8 concentrations in the order of 100 g per tonne ash.
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Degens, E., Khoo, F. & Michaelis, W. Uranium anomaly in Black Sea sediments. Nature 269, 566–569 (1977). https://doi.org/10.1038/269566a0
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DOI: https://doi.org/10.1038/269566a0
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