Nature of the carbon and sulfur phases and inorganic gases in the Kenna ureilite

Details Nature of the carbon and sulfur phases and inorganic gases in the Kenna ureilite Nature of the carbon and sulfur phases and inorganic gases in the Kenna ureilite

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976gecoa..40.1459g&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 40, Dec. 1976, p. 1459-1464.

Computer Science

4

Abundance, Carbon, Gas Composition, Meteoritic Composition, Sulfur, Ureilites, Carbonaceous Chondrites, Carbonates, Chemical Composition, Meteoritic Diamonds, Outgassing, Rare Gases, Temperature Effects

Scientific paper

Abundances of carbon and sulfur in the Kenna ureilite are 2.219 plus or minus 0.060 wt. % C and 0.179 plus or minus 0.008 wt. % S. Secondary carbonates resulting from terrestrial weathering account for 0.25 plus or minus 0.02 wt. % C. No hydrocarbons were detected during gas release measurements. Most of the carbon is in graphite, diamond, or lonsdaleite. The sample of Kenna contained 0.95 plus or minus 0.05 wt.% H2O. Total carbon and sulfur measurements were made on three additional ureilites: Havero, Dingo Pup Donga, and North Haig. Ureilite carbon abundances are similar to those of C-2 chondrites, whereas sulfur abundances are a factor of 10 less than C-2 chondrites and ordinary chondrites. The elemental abundances, ratios, and phases present in the ureilites rule out a direct genetic relationship between the ureilites and the carbonaceous chondrites.

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