Genetic Mechanism of Lower-Order Faults in Shale Formations in Rift Basins

Table 1

Mechanical parameters of the structural stress field simulation in the Weizhuang area.

	Poisson’s ratio	Young’s modulus (GPa)	Rock density (kg·m^-3)
Shale	0.15	28.5	2210
Sandstone	0.18	24.3	2270
Fault	0.20	22.0	2200