Abstract
The compositions of the cores of the terrestrial planets have been re-examined following a calculation by O. G. Soroktin that the iron oxide Fe2O is stable at pressures reached in the Earth's core and his suggestion that the outer core may consist of Fe2O. It is shown that the idea of an Fe2O outer core in the Earth can be fairly well reconciled with a common overall composition for the planets Earth, Venus and Mars in a way that avoids the main objections to the earlier phase-transition theory.
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BULLEN, K. Cores of the Terrestrial Planets. Nature 243, 68–70 (1973). https://doi.org/10.1038/243068a0
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DOI: https://doi.org/10.1038/243068a0
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