Late stage of accumulation and chemical composition of the terrestrial planets

Details Late stage of accumulation and chemical composition of the terrestrial planets Late stage of accumulation and chemical composition of the terrestrial planets

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992em%26p...57..225k&link_type=abstract

Earth, Moon, and Planets (ISSN 0167-9295), vol. 57, no. 3, June 1992, p. 225-230.

Astronomy and Astrophysics

Astronomy

Astronomical Models, Chemical Composition, Mercury (Planet), Planetary Composition, Terrestrial Planets, Asteroid Belts, Earth Mantle, Iron, Venus (Planet)

Scientific paper

The present consideration of a terrestrial-planet composition model in which compositional differences are ascribed to unique conditions at the later stages of accumulation notes that impact heating would result in a rapid differentiation of the Mercury interior. Subsequent high velocity collisions of Mercury with planetesimals of similar size would significantly erode the silicate crust and mantle, allowing the silicates to be accumulated by Venus or sent into the sun. The model is congruent with current views as to the internal constituents of the terrestrial planets.

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