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
Table 4
The characteristics of tectonic distribution and control in different CBM belts.
Name of CBM belt
Tectonic location
Distance from the Likou syncline axis
Controlling structures
Geological structure and its Complexity
CBM belt I
In the wide and gentle area of Likou syncline, near Jiaxian faults
Far
Jiaxian faults
Simple
CBM belt II
In the wide and gentle area of Likou syncline, near Guodishan faults
Far
Guodishan faults
NW-trending fault structures are developed; the geological structure is more complex
CBM belt III
In the transition zone from the convergence area to the wide and gentle area
Between CBM belt II and CBM belt IV
Burial depth
Relatively simple
CBM belt IV
In the convergence area of Likou syncline
Near
Likou syncline and NW- and WNW- trending fold-fault belt
Fold structures and reverse faults are developed; the geological structure is the most complex
