Abstract
Total nitrogen and carbon abundances in twenty-seven samples of nineteen carbonaceous chondrites have been measured. The results obtained indicate that the meteorites enriched in nitrogen are similarly enriched in carbon. The results support the previously observed trends with the highest carbon and nitrogen concentrations in Type I (C-1) carbonaceous chondrites with decreasing amounts in Type II and Type III (C-2, C-3, C-4) carbonaceous chondrites. The Vigarano and Ornans subgroups of the C-3 chondrites have differences in their carbon and nitrogen contents.
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