Carbon dioxide - Adsorption on palagonite and partitioning in the Martian regolith

Details Carbon dioxide - Adsorption on palagonite and partitioning in the Martian regolith Carbon dioxide - Adsorption on palagonite and partitioning in the Martian regolith

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...71..241z&link_type=abstract

(NASA, Lunar and Planetary Institute, and National Air and Space Museum, MECA Conference on Mars: The Evolution of Its Climate a

Physics

27

Adsorption, Carbon Dioxide, Mars Atmosphere, Mars Surface, Regolith, Atmospheric Pressure, Basalt, Gas Exchange, Mineralogy, Polar Caps, Viking Mars Program, Mars, Regolith, Carbon Dioxide, Adsorption, Partitioning, Palagonite, Distribution, Mineralogy, Atmosphere, Ice Cap, Outgassing, Carbonates, Greenhouse Effect, Water, Parameters, Obliquity, Pressure

Scientific paper

The adsorption of CO2 on Mauna Kea palagonite samples with size split 1 mm or less is determined experimentally, and the results are analyzed in an attempt to evaluate the potential CO2 content of the Martian regolith. The palagonite measurements are presented in graphs, combined with data on nontronite and basalt, and incorporated into an adsorption model relating temperature, P(CO2), and the specific surface area for basalts and basalt weathering products. Applying the model to Martian conditions, it is inferred that (if the soil sampled by the Viking lander is typical of Martian debris) the adsorbed CO2 is 1-2 orders of magnitude more massive than the atmospheric CO2, but that most of the degassed CO2 on Mars is either stored as carbonate rocks or has been lost through atmospheric cratering.

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