Implications of the high D/H ratio for the sources of water in Venus' atmosphere

Observations of a water concentration of only 30 parts per million in Venus' atmosphere suggest that the residence time of water in the atmosphere, before it escapes to space, is short compared with the age if the solar system, which casts doubt on the primordial ocean hypothesis. The D/H ratio...

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Bibliographic Details
Published inNature (London) Vol. 363; no. 6428; pp. 428 - 431
Main Author Grinspoon, David Harry
Format Journal Article
LanguageEnglish
Published London Nature Publishing 03.06.1993
Nature Publishing Group
Subjects
Astronomy
Astrophysics
Atmosphere
Earth, ocean, space
Exact sciences and technology
Planets, their satellites and rings. Asteroids
Solar system
Venus
Water
Deuterium
Water
Planetary atmosphere
Hydrogen
Venus
Abundance
Isotopic fractionation
Steady state
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Summary:Observations of a water concentration of only 30 parts per million in Venus' atmosphere suggest that the residence time of water in the atmosphere, before it escapes to space, is short compared with the age if the solar system, which casts doubt on the primordial ocean hypothesis. The D/H ratio of the planet's source water is discussed.
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ISSN:0028-0836
1476-4687
DOI:10.1038/363428a0