Hydrocarbon generation, expulsion, and retention characteristics of the Permian Fengcheng shale and Lucaogou shale in the Junggar Basin: implications for the exploration of lacustrine shale oil - He, Wenjun; Li, Zhiming; Li, Changrong; He, Jinyi; Leng, Junying; Sun, Zhongliang; Liu, Deguang; Yang, Sen (Frontiers in Earth Science, 2025)