Trapping of water vapor from an atmosphere by condensed silicate matter formed by high-temperature pulse vaporization

Details Trapping of water vapor from an atmosphere by condensed silicate matter formed by high-temperature pulse vaporization Trapping of water vapor from an atmosphere by condensed silicate matter formed by high-temperature pulse vaporization

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..527g&link_type=abstract

In Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 2: G-M p 527-528 (SEE N94-16173 03-91)

Computer Science

Atmospheric Composition, Atmospheric Moisture, High Temperature, Planetary Atmospheres, Planetary Evolution, Silicates, Trapping, Vaporizing, Water Vapor, Carbon Dioxide, Dehydration, Enstatite, Helium, Hydroxides, Minerals, Protoplanets, Pyroxenes

Scientific paper

The origin of planetary atmospheres is thought to be the result of bombardment of a growing planet by massive planetesimals. According to some models, the accumulation of released water vapor and/or carbon dioxide can result in the formation of a dense and hot primordial atmosphere. Among source and sink processes of atmospheric water vapor the formation of hydroxides was considered mainly as rehydration of dehydrated minerals (foresterite and enstatite). From our point of view, the formation of hydroxides is not limited to rehydration. Condensation of small silicate particles in a spreading vapor cloud and their interaction with a wet atmosphere can also result in the origin of hydrated phases which have no genetic connections with initial water bearing minerals. We present results of two experiments of a simulated interaction of condensed silicate matter which originated during vaporization of dry clinopyroxene in a wet helium atmosphere.

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