A microscopic ancient river channel identification method based on maximum entropy principle and Wigner-Ville Distribution and its application

XU Tianji,CHENG Bingjie,NIU Shuangchen,QIN Zhengye,WANG Zhenzhen

Table 2 Parameters of the numerical models.

Model Lithology P-wave velocity/(m·s-1) S-wave velocity/(m·s-1) Density/(kg·m-3) Initial depth/m Width/m Thickness/m ① Mudstone 2500 1450 2200 0 2000 1500 ② Mudstone 2900 1600 2240 1500 2000 500 ③ Mudstone 3300 1650 2320 2000 2000 1500 ④ Sandstone 4700 2780 2450 2500 400 500 ⑤ Sandstone 4200 2620 2400 2900 300 100 ⑥ Sandstone 4200 2620 2400 2950 200 50 ⑦ Sandstone 4200 2620 2400 2970 100 30 ⑧ Sandstone 4200 2620 2400 2990 50 10 ⑨ Sandstone 4200 2620 2400 2990 10 10