Black shale formation environment and its control on shale oil enrichment in Triassic Chang 7 Member, Ordos Basin, NW China

ZHANG Bin,MAO Zhiguo,ZHANG Zhongyi,YUAN Yilin,CHEN Xiaoliang,SHI Yuxin,LIU Guanglin,SHAO Xiaozhou

Fig. 11. Vertical distribution histogram of the relative content of light, medium and heavy normal alkanes in the Well Feng 75.