Developmental characteristics and geological significance of the bentonite in the Upper Ordovician Wufeng - Lower Silurian Longmaxi Formation in eastern Sichuan Basin, SW China

WANG Yuman,LI Xinjing,WANG Hao,JIANG Shan,CHEN Bo,MA Jie,DAI Bing

Petroleum Exploration & Development . 2019, (4): 687 -700 . DOI: 10.1016/S1876-3804(19)60226-0