Computer Science
Scientific paper
May 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981gecoa..45..753y&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 45, Issue 5, pp.753-762
Computer Science
6
Scientific paper
D / H and 13 C / 12 C ratios were measured for 114 petroleum samples and for several samples of related organic matter. D of crude oil ranges from -85 to -181 , except for one distillate (-250 ) from the Kenai gas field; 13 C of crude oil ranges from -23.3 to -32.5 , Variation in D and 13 C values of compound-grouped fractions of a crude oil is small, 3 and 1.1%., respectively, and the difference in D and 13 C between oil and coeval wax is slight. Gas fractions are 53-70 and 22.6-23.2 depleted in D and 13 C, respectively, relative to the coexisting oil fractions. The D and 13 C values of the crude oils appear to be largely determined by the isotopic compositions of their organic precursors. The contribution of terrestrial organic debris to the organic precursors of most marine crude oils may be significant.
Epstein Samuel
Yeh Hsueh-Wen
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