Implications of the hypohydrous history of Mars

Details Implications of the hypohydrous history of Mars Implications of the hypohydrous history of Mars

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978cosp.meetr....o&link_type=abstract

COSPAR, Plenary Meeting, 21st, Innsbruck, Austria, May 29-June 10, 1978, Paper. 13 p.

Biology

Mars Surface, Organic Compounds, Oxidation, Planetary Evolution, Viking Mars Program, Abundance, Decarboxylation, Face Centered Cubic Lattices, Iron Oxides, Peroxides, Reaction Kinetics

Scientific paper

The extent to which fluvial processes occurred in Mars is considered with reference to the oxidation of soil organics by the gamma-Fe2O3/H2O2 system. Data from the Viking biology experiments suggest that the acidity of gamma-Fe2O3 controls the ionization of hydrogen peroxide - that is, in acid conditions and in the presence of large concentrations of formate, gamma-Fe2O3 reacts efficiently with peroxide to oxidize formate to CO2 and H2O. Fe3O4, alpha-Fe2O3, and calcite are basic and block the oxidation of formate. The properties of this system are consistent with the hypothesis that Mars has been under a severe regime of dryness.

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