U.S. Geological Survey Open-File Report 01-257

By Kinga M. Revesz, Jurate M. Landwehr, and Jerry Keybl

Figure 5. Stable carbon and oxygen ratio data profiles obtained by the GasBench II method for the re-sampled DH-11 core material, with appropriate sampling depth correction applied, compared to the original DH-11 analysis by the classical method. Filled symbols indicate data profiles of the re-sampled DH-11 core material obtained by the GasBench II method and star symbols indicate analysis of the same core by the classical method; open symbols indicate data profiles from the original DH-11 analysis obtained by the classical method, as reported by Landwehr and others (1997). The linear correlation between the data profiles for both isotopes is greater than 0.96.


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