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Science 6 March 1970:
Vol. 167. no. 3923, pp. 1367 - 1370
DOI: 10.1126/science.167.3923.1367
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Articles

Endogenous Carbon in Carbonaceous Meteorites

J. W. Smith 1 and I. R. Kaplan 1

1 Institute of Geophysics and Planetary Physics, University of California, Los Angeles 90024

Seven carbonaceous chondrites have been analyzed for soluble organic compounds, carbonate, and residual carbon. Carbon-13/carbon-12 isotopic mneasurements on these fractions gave the following values relative to a marine carbonate standard: carbonate, +40 to +70 per mil; residual carbon, -15 to -17 per mil; soluble organic material, -17 to -27 per mil, with one value of -5.5 per mil. These values are interpreted to indicate that carbonate, residual carbon, and part of the extractable organic material are endogenous to these meteorites.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Terrestrial Carbon and Nitrogen Isotopic Ratios from Cretaceous-Tertiary Boundary Nanodiamonds.
I. Gilmour, I. Gilmour, S. S. Russell, J. W. Arden, M. R. Lee, I. A. Franchi, and C. T. Pillinger (1992)
Science 258, 1624-1626
   Abstract »    PDF »
Interstellar Carbon in Meteorites.
P. K. Swart, P. K. SWART, M. M. GRADY, C. T. PILLINGER, R. S. LEWIS, and E. ANDERS (1983)
Science 220, 406-410
   Abstract »    PDF »
Organic Compounds in Meteorites: They may have formed in the solar nebula, by catalytic reactions of carbon monoxide, hydrogen, and ammonia.
E. Anders, E. Anders, R. Hayatsu, and M. H. Studier (1973)
Science 182, 781-790
   Abstract »    PDF »
Carbon Isotopic Studies of Organic Matter in Precambrian Rocks.
D. Oehler, D. Z. Oehler, J. W. Schopf, and K. A. Kvenvolden (1972)
Science 175, 1246-1248
   Abstract »    PDF »
Carbon, Carbides, and Methane in an Apollo 12 Sample.
S. Chang, S. Chang, K. Kvenvolden, J. Lawless, C. Ponnamperuma, and I. R. Kaplan (1971)
Science 171, 474-477
   Abstract »    PDF »


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