Discovery and geological knowledge of the large deep coal-formed Qingyang Gas Field, Ordos Basin, NW China
FU Jinhua,WEI Xinshan,LUO Shunshe,ZUO Zhifeng,ZHOU Hu,LIU Baoxian,KONG Qingfen,ZHAN Sha,NAN Junxiang
Fig. 1. Location of Qingyang Gas Field.