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. 4. Gas δ2HCH4 distribution in the Sinian Dengying Formation of the central Sichuan paleohigh (with source rock thickness from Ref. [33]; MX, GS, PT, and ZJ represent Moxi, Gaoshiti, Pengtan, and Zhongjiang, respectively).