Evidence for magma oceans on asteroids, the moon, and Earth

Details Evidence for magma oceans on asteroids, the moon, and Earth Evidence for magma oceans on asteroids, the moon, and Earth

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pcmo.work...58t&link_type=abstract

In Lunar and Planetary Inst., Workshop on the Physics and Chemistry of Magma Oceans from 1 Bar to 4 Mbar p 58-65 (SEE N92-28587

Physics

Earth Planetary Structure, Impact Melts, Lunar Evolution, Magma, Oceans, Planetary Evolution, Terrestrial Planets, Asteroids, Crystallization, Moon, Planetary Atmospheres, Protoplanets

Scientific paper

There are sound theoretical reasons to suspect that the terrestrial planets melted when they formed. For Earth, the reasons stem largely from the hypothesis that the moon formed as a result of the impact of a Mars-sized planetesimal with the still accreting Earth. Such a monumental event would have led to widespread heating of the Earth and the materials from which the moon was made. In addition, formation of a dense atmosphere on the Earth (and possibly the Moon) would have led to retention of accretional heat and, thus, widespread melting. In other words, contemporary theory suggests that the primitive Moon and terrestrial planets had magma oceans.

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