Study on the Destructive Effect of Small Faults on Coal Pore Structure

Figure 2

SEM images of coal samples at different positions. (a, b) Show fracture groups with straight walls, stable strikes, and close spacing. (c, d) Show wavy beddings.

(a) A1 magnified 250 times

(b) A1 magnified 10000 times

(c) A2 magnified 250 times

(d) A2 magnified 10000 times