Abstract
The Pb-, Nd-, and Sr-isotope compositions of oceanic ferromanganese deposits, together with the Nd-, and Sr-isotope compositions of altered ocean-floor basalts are reported. These data are used to evaluate the sources of these metals in both the oceans and ferromanganese deposits and the extent to which ocean-floor basalts are a source of, or a sink for these metals.
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O'Nions, R., Carter, S., Cohen, R. et al. Pb, Nd and Sr isotopes in oceanic ferromanganese deposits and ocean floor basalts. Nature 273, 435–438 (1978). https://doi.org/10.1038/273435a0
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DOI: https://doi.org/10.1038/273435a0
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