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Effect of purity on adsorption capacities of a Mars-like clay mineral at different pressuresThere has been considerable interest in adsorption of carbon dioxide on Marslike clay minerals. Some estimates of the carbon dioxide reservoir capacity of the martian regolith were calculated from the amount of carbon dioxide adsorbed on the ironrich smectite nontronite under martian conditions. The adsorption capacity of pure nontronite could place upper limits on the regolith carbon dioxide reservoir, both at present martian atmospheric pressure and at the postulated higher pressures required to permit liquid water on the surface. Adsorption of carbon dioxide on a Clay Mineral Society standard containing nontronite was studied over a wide range of pressures in the absence of water. Similar experiments were conducted on the pure nontronite extracted from the natural sample. Heating curves were obtained to help characterize and determine the purity of the clay sample.
Document ID
19930022756
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Jenkins, Traci
(Arkansas Coll. Batesville, AR, United States)
Mcdoniel, Bridgett
(Arkansas Coll. Batesville, AR, United States)
Bustin, Roberta
(Arkansas Coll. Batesville, AR, United States)
Allton, Judith H.
(Lockheed Engineering and Sciences Co. Houston, TX., United States)
Date Acquired
September 6, 2013
Publication Date
September 12, 1992
Publication Information
Publication: Lunar and Planetary Inst., MSATT Workshop on Chemical Weathering on Mars
Subject Category
Lunar And Planetary Exploration
Accession Number
93N31945
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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