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. 5. Relationship between Sinian-Cambrian gas δ2HCH4 and the age of source rocks.