Combustion analyses of total carbon in chondritic meteorites indicate a fractionation of this element between the various types of chondrites. The median values for the percentage of carbon by weight are 0.40 for enstatite chondrites, 0.09 for olivine-bronzite chondrites, and 0.08 for olivine-hypersthene chondrites. Olivine-pigeonite chondrites show great variations in their carbon contents.
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Moore et al. (1965) studied this question.
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