Methodology for research on the provenance of black shales and its problems and prospects： A case study of the Wufeng-Longmaxi formations， southern Sichuan Basin
Ling QI, Zhensheng SHI, Hongyan WANG, Tianqi ZHOU, Guizhong LI, Meng ZHAO, Hui CHENG, Zihao CHENG
Oil & Gas Geology . 2025, (1): 62 -77 .  DOI: 10.11743/ogg20250105