Science. 1963 Apr 12;140(3563):192-3. doi: 10.1126/science.140.3563.192.
The C(13)/C(12) ratio in the carbonate minerals of Orgueil, a carbonaceous chondrite, is 6 percent greater than the ratio in any known terrestrial carbon. The effect may be produced by a chemical isotope fractionation involving processes not common on earth, or it may be the result of incomplete homogenization of substances with different histories of nucleosynthesis.
奥格尔陨石碳酸盐矿物中的 C(13)/C(12) 比值比任何已知的地球碳都高 6%。这种影响可能是由涉及地球上不常见过程的化学同位素分馏产生的，也可能是具有不同核合成历史的物质不完全均匀化的结果。
