Terrestrial origin of the moon

Details Terrestrial origin of the moon Terrestrial origin of the moon

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.322..323r&link_type=abstract

Nature (ISSN 0028-0836), vol. 322, July 24, 1986, p. 323-328.

Computer Science

24

Abundance, Earth-Moon System, Geochemistry, Lunar Evolution, Selenology, Cobalt, Earth Mantle, Lunar Composition, Primitive Earth Atmosphere, Tungsten

Scientific paper

Abundance patterns of siderophile elements in the earth's mantle have been determined by complex processes connected with internal segregation of a metallic core amounting to 32 percent of the earth's mass. Although the lunar core may be only 2 percent of the lunar mass and formed in very different conditions to the earth's core, the lunar siderophile pattern is closely related to that of the earth's mantle, implying that the material in the moon derived mainly from the earth's mantle after core formation. New models for the accretion of the earth which require impacts by large planetesimals in the presence of a corotating primitive terrestrial atmosphere provide a mechanism for transferring material from the earth's mantle into geocentric orbit as a ring of protolunar planetasimals, from which the moon later accreted.

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