Geological characteristics and development potential of transitional shale gas in the east margin of the Ordos Basin, NW China |
KUANG Lichun,DONG Dazhong,HE Wenyuan,WEN Shengming,SUN Shasha,LI Shuxin,QIU Zhen,LIAO Xinwei,LI Yong,WU Jin,ZHANG Leifu,SHI Zhensheng,GUO Wen,ZHANG Surong |
Fig. 7. Frequency distribution histogram of vitrinite reflectance of the Shan-2 shale samples in the east margin of the Ordos Basin. |