A Multiscale Structural Analysis of Soft and Hard Coal Deposits in Deep High-Gas Coal Seams

Figure 5

Mesostructures of the soft coal in the different coal seams. (a) No. 1 soft coal in the No. 4 coal seam. (b) No. 2 soft coal in the No. 4 coal seam. (c) No. 1 soft coal in the No. 13 coal seam. (d) No. 2 soft coal in the No. 13 coal seam.

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(b)

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