[1] 1 Krouse H R ek Chemical and Isotopic evidence of thermuchexrical sulphate reduction by light drocarbon gases in deep car-bonate reservoirs. Nature. 1988.(333): 415-419.

2 沈平工先彬.徐永昌等.天然气同位素组成及气源对比.石油勘探与开发.1982, (6): 34-38.