Research on Coal Bed Methane (Gas) Occurrence Controlled by Geological Tectonics in the Southern Margin of North China Plate: A Case Study of the Pingdingshan Coalfield, China

Figure 4

The division of CBM belts and the distribution of CBM (gas) content of the research area in coal seam group F showing (a) the division of CBM belts and ((b), (c)) the difference and change of CBM (gas) content among different CBM belts. Figures (b) and (c) were prepared according to the relationship between CBM content and burial depth (Table 3).

(a)

(b)

(c)