Formation of the metallic cores of planets

Details Formation of the metallic cores of planets Formation of the metallic cores of planets

Oct 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975geokh.....1427v&link_type=abstract

Geokhimiia, Oct. 1975, p. 1427-1431. In Russian.

Other

Cores, Planetary Evolution, Planetary Structure, Deposition, Iron, Planetary Composition, Silicates

Scientific paper

The following picture of events is drawn for the formation of the metallic iron cores of the terrestrial planets: separation and accumulation of metallic iron by virtue of its special properties as compared to silicates and other fractions of the protoplanetary nebula took place rapidly in the area of the inner edge of the nebula facing the sun, where an accumulation of massive Fe fragments was taking place. This led to the dissociation of the rotating nebula ring, on account of its rotation instability, into bunches - metallic nuclei that formed centers for the accretion of the silicate material of the nebula. These were the centers for the formation of the terrestrial planets. Thus, further differentiation of the mantle material of the earth into layers took place on the base of the existing metallic nucleus.

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