LIU Jian, DUAN Jixing, XIE Rui, et al. Oil seedling profile of Maokou Formation discovered in Foshan Village, Jianfeng, Guangyuan City, Northwest Sichuan[J]. Marine Geology Frontiers, 2023, 39(4): 91-96. DOI: 10.16028/j.1009-2722.2023.020