minerals Article Pore Structure and Fractal Characteristics of Different Shale Lithofacies in the Dalong Formation in the Western Area of the Lower Yangtze Platform Longfei Xu 1,2, Jinchuan Zhang 1,2,*, Jianghui Ding 3,4, Tong Liu 1,2, Gang Shi 5, Xingqi Li 1,2, Wei Dang 6,7, ...