Possible cometary origin of heavy noble gases in the atmospheres of Venus, Earth and Mars

@article{Owen1992PossibleCO,
  title={Possible cometary origin of heavy noble gases in the atmospheres of Venus, Earth and Mars},
  author={T. Owen and A. Bar-Nun and I. Kleinfeld},
  journal={Nature},
  year={1992},
  volume={358},
  pages={43-46}
}
MODELS that trace the origin of noble gases in the atmospheres of the terrestrial planets (Venus, Earth and Mars) to the 'planetary component' in chondritic meteorites confront several problems. The 'missing' xenon in the atmospheres of Mars and Earth (Fig. 1) is one of the most obvious; this gas is not hidden or trapped in surface materials1. On Venus, the absolute abundances of neon and argon per gram of rock are higher even than those in carbonaceous chondrites, whereas the relative… Expand
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References

SHOWING 1-10 OF 37 REFERENCES
Possible solar noble-gas component in Hawaiian basalts
THE noble-gas elemental and isotopic composition in the Earth is significantly different from that of the present atmosphere, and provides an important clue to the origin and history of the Earth andExpand
The composition of the atmosphere at the surface of Mars
We have confirmed the discovery of N2 and 40Ar by the Entry Science Team, and we have also detected Ne, Kr, Xe, and the primordial isotopes of Ar. The noble gases exhibit an abundance pattern similarExpand
Origin of the atmospheres of the terrestrial planets
Abstract The monotonic decrease in the atmospheric abundance of 36 Ar per gram of planet in the sequence, Venus, Earth, and Mars has been assumed to reflect some conditions in the primitive solarExpand
On the origin and early evolution of terrestrial planet atmospheres and meteoritic volatiles
A simple analytic model of mass fractionation in hydrodynamic escape is applied to the problem of the origin and evolution of terrestrial planet atmospheres and meteoritic noble gases from primordialExpand
Ice clathrate as a possible source of the atmospheres of the terrestrial planets
Abstract The presence and compositions of atmospheres on the terrestrial planets do not follow directly from condensation models which would have Earth accreting near 500°K. No single mechanism yetExpand
Martian Gases in an Antarctic Meteorite?
TLDR
Findings support earlier suggestions, made on the basis of geochemical evidence, that shergottites and related rare meteorites may have originated from the planet Mars. Expand
Trapping of xenon in ice - Implications for the origin of the earth's noble gases
Although the Earth's atmosphere contains Ne, Ar, and Kr in about C1,2-chondrite proportions, Xe is depleted about 20-fold. To test the suggestion that the “missing” Xe is trapped in Antarctic ice, weExpand
Noble Gases in Terrestrial Planets: Evidence for Cometary Impacts?
The possible role of comets in bringing volatiles to the inner planets is investigated by means of laboratory studies of the ability of ice to trap gases at low temperatures. The pattern of the heavyExpand
Primordial neon, helium, and hydrogen in oceanic basalts
A primordial neon component in neon from Kilauea Volcano and deep-sea tholeiite glass has been identified by the presence of excess20Ne; relative to atmospheric neon the20Ne enrichments are 5.4% inExpand
Solar wind origin of Ar-36 on Venus
An examination is conducted concerning the circumstances under which the difference between earth and Venus (and Mars) fits naturally into theories in which the terrestrial planets formed by theExpand
...
1
2
3
4
...