Characteristics of Source Rocks and Oil–Source Correlation in the Seventh Member of the Yanchang Formation (Chang 7 Member), Pingbei Area, Ordos Basin. - Ma, Yinyin; Hu, Zhonggui; Yang, Shengu; Sun, Yahui; Cai, Quansheng; Cheng, Cong; Deng, Qingjie (Applied Sciences (2076-3417), 2026)