Abstract
INVESTIGATIONS made in this Institute of the ferrides present in sediment cores from great depths, taken by the Swedish Deep-Sea Expedition, have shown their content of nickel to be specially interesting. The only analysis of nickel in deep-sea deposits known to us was published in 1914 by F. W. Clarke and G. Steiger, and gave 0.032 per cent as the content of nickel oxide in a composite sample of red clay from fifty-one different localities1. By the aid of modern microanalytical methods (the colour reaction with dimethyl glyoxime) quantities of nickel as small as 5–6 γ can easily be measured.
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References
Clarke, F. W., and Steiger, G., J. Washington Acad. Sci., 4, 58 (1914).
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PETTERSSON, H., ROTSCHI, H. Nickel Content of Deep-Sea Deposits. Nature 166, 308 (1950). https://doi.org/10.1038/166308a0
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DOI: https://doi.org/10.1038/166308a0
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