Sinian gas sources and effectiveness of primary gas-bearing system in Sichuan Basin, SW China

ZHAO Wenzhi,XIE Zengye,WANG Xiaomei,SHEN Anjiang,WEI Guoqi,WANG Zecheng,WANG Kun

Fig. 2. Carbon isotopic compositions in Sinian-Cambrian gases, Sichuan Basin (with some data from Ref. [10]).