Research Article

Multiscale Fracturing in Medium- to Low-Rank Coals and Its Implications on Coalbed Methane Production in the Baode Area, Eastern Ordos Basin, China

Figure 6

Fractures and minerals in coal. (a) Endogenous fractures, (b, d) endogenous fissures filled with clay minerals, (c, d) clay minerals, (e) endogenous fractures filled with carbonate minerals, and (f) results of the elemental analysis of the point marked by the red cross in (e).
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