USGS Open-File Report 03-041

U.S. Geological Survey Open-File Report 03-041
Figure 12

Carbon dioxide concentration as a function of the difference in carbon isotopic composition of ethane (C2) and propane (C3). Arrows indicate different paths for gases altered by microbial oxidation of ethane and propane

Figure12. Carbon dioxide concentration as a function of the difference in carbon isotopic composition of ethane (C₂) and propane (C₃). Arrows indicate different paths for gases altered by microbial oxidation of ethane and propane.

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