Geochemical characteristics and genetic mechanism of the high-N2 shale gas reservoir in the Longmaxi Formation, Dianqianbei Area, China. - Li, Ji-Lin; Zhang, Ting-Shan; Li, Yan-Jun; Liang, Xing; Wang, Xin; Zhang, Jie-Hui; Zhang, Zhao; Shu, Hong-Lin; Rao, Da-Qian (Petroleum Science (Springer Nature), 2020)