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《中国地球化学学报:英文版》
>Origin of CO_2 gas from the north depression of the middle fault zone in the Hailar-Tamtsag Basin and natural gas in nearby depressions
Origin of CO_2 gas from the north depression of the middle fault zone in the Hailar-Tamtsag Basin and natural gas in nearby depressions
Natural gas pools with the high contents of CO2 were discovered during exploring the middle fault zone of the Hailar-Tamtsag Basin. So far this kind of gas reservoir with CO2 with characteristics of carbon isotope is spe-cial. The stable carbon isotope of CO2 in the study area is relatively light with δ13 CCO2 values ranging from -13.1‰ to -8.2‰. The 40Ar/36Ar values of associated argon gas range from 916 to 996, with R/Ra of 1.20-1.26. Based on comprehensive analysis, it is believed that the CO2 gas in this study area is of crust mantle source.
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