An assessment of the nature and origins of carbon-bearing components in fines collected during the sawing of EET A79001

Details An assessment of the nature and origins of carbon-bearing components in fines collected during the sawing of EET A79001 An assessment of the nature and origins of carbon-bearing components in fines collected during the sawing of EET A79001

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....98.3477w&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. E2, p. 3477-3482.

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Carbon Isotopes, Geochemistry, Mars Surface, Meteoritic Composition, Planetary Geology, Carbonates, Planetology, Meteorites, Antarctic Meteorites, Eet Meteorites, Eeta79001, Composition, Samples, Meteorite, Laboratory Studies, Carbon, Isotopes, Concentration, Fines, Contamination, Martian Meteorites, Origin, Formation, Source, Minerals, Procedure, Temperature, Carbon 13, Gases, Carbonate, Abundance

Scientific paper

Results are presented of an analysis of sawdust, obtained from the cutting of EET A79001, a meteorite with a presumed Martian origin, for its carbon content and stable isotopic composition in order to assess the sample's potential value for studies to elucidate Martian surface processes. A number of contaminants are identified in the fines (e.g., organic materials, Teflon, diamond, and carbon associated with metal). Evidence for an indigenous carbonate component similar to that observed previously in other fractions of the meteorites is found. The levels of trapped Martian atmospheric CO2 calculated for the fines are unexpectedly high (about 1 ppm carbon), but this could be influenced by the presence of other, as yet unknown, carbonaceous materials.

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