Lower Cambrian Organic-Rich Shales in Southern China: A Review of Gas-Bearing Property, Pore Structure, and Their Controlling Factors

Figure 5

Pore size distribution of the Lower Paleozoic shales in southern China. (a) The Lower Silurian shale samples in southern Sichuan, (b) the Lower Cambrian shale samples in southern Sichuan, (c) the Lower Cambrian shale samples in northeastern Chongqing, and (d) the Lower Cambrian shale samples in northern Guizhou (modified from Wu et al. [16]; Wang et al. [121]; Yang et al. [122]; Zhu et al. [123]).

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