Argon Content of the Martian Atmosphere at the Viking 1 Landing Site: Analysis by X-ray Fluorescence Spectroscopy

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Science  27 Aug 1976:
Vol. 193, Issue 4255, pp. 804-805
DOI: 10.1126/science.193.4255.804


The argon content of the martian atmosphere at the Viking 1 landing site is ≤ 0.15 millibar or ≤ 2 percent by volume (95 percent confidence level).