Argon-40 in the Martian atmosphere

Details Argon-40 in the Martian atmosphere Argon-40 in the Martian atmosphere

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976kosis..14..592s&link_type=abstract

Kosmicheskie Issledovaniia, vol. 14, July-Aug. 1976, p. 592-597. In Russian.

Computer Science

Argon Isotopes, Mars Atmosphere, Planetary Composition, Radiogenic Materials, Atmospheric Composition, Planetology, Potassium

Scientific paper

Potassium content in the Martian interior and in the superficial layer, and radiogenic argon content in the planet's atmosphere, are analyzed. The mass balance for daughter argon-40 in the planet's lower atmosphere is calculated. A model designed to account for radiogenic argon input into the Mars atmosphere is constructed on the basis of argon contents arrived at via different techniques, the mass balance of argon-40 formed in the planet's interior, and a comparative study of atmospheric argon production mechanisms in the terrestrial planets. The model places atmospheric argon at about 50% the argon content in the Martian mantle, and about 5% the argon content in the crust, which accounts for roughly a third of the total amount of radiogenic argon formed throughout the planet's history.

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