Physics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984rspsa.395....1r&link_type=abstract
Royal Society (London), Proceedings, Series A - Mathematical and Physical Sciences (ISSN 0080-4630), vol. 395, no. 1808, Sept. 8
Physics
45
Chemical Composition, Earth Core, Earth Planetary Structure, Geochemistry, Planetary Evolution, Earth Mantle, Geochronology, Iron Oxides, Light Elements, Oxygen, Phase Transformations
Scientific paper
An overview is presented of several recent experimental and theoretical investigations of the physical properties, chemical abundances, and dynamic processes of the earth's core. Data are presented for the formation of oxygen in the earth core, high pressure phase transformations in core iron oxides, the effect of pressure on the solubility of FeO in molten iron, and the oxygen content of the core. A theoretical model is proposed for the formation of the core, taking into account new experimental data for the chronology, thermal regime, melting characteristics and chemical segregation in the core. The model provides a general description of the process of iron oxide incorporation in the earth, and some aspects of mantle geochemistry. A series of illustrations is provided which describe the physical processes in detail.
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