Biology
Scientific paper
Nov 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....8710069h&link_type=abstract
(International Colloquium on Mars, 3rd: Dedicated to Thomas A. Mutch /1931-1980/, Pasadena, CA, Aug. 30-Sept. 2, 1982.) Journal
Biology
20
Cosmochemistry, Environmental Chemistry, Exobiology, Mars Surface Samples, Viking Lander Spacecraft, Weathering, Carbon Dioxide Concentration, Chemisorption, Extraterrestrial Life, Life Detectors, Mars Atmosphere, Oxidation-Reduction Reactions, Planetary Evolution, Soils, Spaceborne Experiments, Water
Scientific paper
Since the publication of studies describing models that do not require external energy sources, new LR (labeled release) test standards module studies have been reported by Levin and Straat (1981). These studies impose important constraints on the various models, and they offer strong support for the 'frost-weathering' model. These findings are discussed here, and it is proposed that the activity of all three biology experiments can now adequately be explained as a consequence of a single active agent produced by contemporary chemical weathering. Some of the possible consequences and implications of contemporary weathering for the current state and evolution of the regolith and atmosphere are briefly discussed.
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