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Composition of the Earth

Abstract

RECENTLY, Birch1 reported data on the density and composition of the mantle and core. He wrote: “The resulting densities in the lower mantle are found to be in good agreement with shock-wave measurements on rocks having FeO contents in the range 10 ± 2% by weight … except for iron oxide, the chemical composition of the mantle is indeterminate. The density of the outer core is lower than that of iron by about 10%”.

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References

  1. Birch, F., J. Geophys. Res., 69, 4377 (1964).

    Article  ADS  CAS  Google Scholar 

  2. Mason, B., Amer. Museum Novitates, 2223, 1 (1965).

  3. Ringwood, A. E., Geochim. Cosmochim. Acta, 15, 195 (1958).

    Article  ADS  CAS  Google Scholar 

  4. MacDonald, G. J. F., and Knopoff, L., Geophys. J., 1, 284 (1958).

    CAS  Google Scholar 

  5. Poldervaart, A., Geol. Soc. Amer. Spec. Paper, 62, 119 (1955).

    Article  CAS  Google Scholar 

  6. Green, D. H., and Ringwood, A. E., J. Geophys. Res., 68, 937 (1963).

    Article  ADS  CAS  Google Scholar 

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MASON, B. Composition of the Earth. Nature 211, 616–618 (1966). https://doi.org/10.1038/211616a0

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  • DOI: https://doi.org/10.1038/211616a0

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