Using the Viking biology experimental results to obtain chemical information about Martian regolith

Details Using the Viking biology experimental results to obtain chemical information about Martian regolith Using the Viking biology experimental results to obtain chemical information about Martian regolith

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993chwe.work...30p&link_type=abstract

In Lunar and Planetary Inst., MSATT Workshop on Chemical Weathering on Mars p 30-31 (SEE N93-31933 12-91)

Mathematics

Logic

1

Chemical Reactions, Mars Surface, Planetary Geology, Regolith, Viking Mars Program, Carbon Dioxide, Gas Exchange, Mars (Planet), Oxidation, Oxygen

Scientific paper

Although initially formulated as biology experiments, most of the results produced by the Viking Labeled Release (LR), Gas Exchange (GEX), and Pyrolytic Release (PR) experiments have been reproduced by chemical means. The experiments do not need more study as 'biological' phenomena, but they do deserve much more careful consideration from a chemical viewpoint. They are the only 'wet-chemical' experiments that scientists have performed on another planet, but they have not found very general use as sources of scientific information. There is a large set of potentially useful chemical observations, e.g., the three resolvable and precisely measured kinetic components of the release of C-14-labeled gases, the thermal sensitivity and magnitudes of the oxidation reaction(s) of the LR experiments, the kinetics and magnitude of the O2 and CO2 release of the GEX experiments, the thermal sensitivity of the GEX results, the differences between the thermal sensitivity of the GEX and the thermal sensitivity of the LR responses, and the kinetics and magnitudes of the LR successive injection reabsorption effect. It should be possible to test many chemical aspects of hypothetical martian phenomena in experiments using the biology experimental configurations and derive much valuable information by comparisons with the Viking observations.

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