The atmosphere of Mars near the surface - Isotope ratios and upper limits on noble gases

Details The atmosphere of Mars near the surface - Isotope ratios and upper limits on noble gases The atmosphere of Mars near the surface - Isotope ratios and upper limits on noble gases

Oct 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976sci...194...76b&link_type=abstract

Science, vol. 194, Oct. 1, 1976, p. 76-78.

Computer Science

23

Abundance, Atmospheric Composition, Mars Atmosphere, Mars Surface, Planetary Composition, Rare Gases, Argon Isotopes, Carbon Isotopes, Krypton Isotopes, Mass Spectrometers, Molecular Spectra, Nitrogen 15, Oxygen Isotopes, Volatility, Xenon Isotopes

Scientific paper

Several analyses of the Martian atmosphere have been carried out with the mass spectrometer in the molecular-analysis experiment. The ratios of abundant isotopes of carbon and oxygen are within 10 per cent of terrestrial values, whereas nitrogen-15 is considerably enriched on Mars. Argon-38 has been detected, and new limits on abundances of krypton and xenon have been set. The limit on krypton is sufficiently low to suggest that the inventories of volatile substances on Mars and on earth may be distinctly different.

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