Did a primary solar-type atmosphere exist around the proto-earth?

Details Did a primary solar-type atmosphere exist around the proto-earth? Did a primary solar-type atmosphere exist around the proto-earth?

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...85...21s&link_type=abstract

Icarus (ISSN 0019-1035), vol. 85, May 1990, p. 21-42. Research supported by the Japan Society for Promotion of Science.

Physics

12

Primitive Earth Atmosphere, Protoplanets, Solar Atmosphere, Abundance, Gravitational Effects, Neon, Planetary Surfaces, Silicates, Solar System

Scientific paper

The present consideration of conditions for convective stability in the protoearth's hypothesized primary atmosphere notes that novel data, indicating Ne dissolution and a moderate mass-accretion rate, yield stricter conditions on the existence of such a primary atmosphere than the data of Mizuno and Wetherill (1984). The solar-type atmosphere around the protoearth is projected to have begun to escape before the planetary mass was smaller than 0.6 earth masses. It was implicitly assumed that dissolution equilibrium should not be achieved at the planetary surface, due to its frequent stirring by impacts.

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