The Role of Microfabric and Laminae on Pore Structure and Gas Transport Pathways of Marine Shales from Sichuan Basin, China

Figure 9

FE-SEM images of silica-rich argillaceous shales (CM). (a) Back-scattered electron of silica-rich argillaceous shales. Abundant clay flakes are commonly oriented along the lamination. (b) Nonporous organic matter particles in silica-rich argillaceous shale. There is microfracture between organic matter particle and framework minerals. (c) Intraparticle pores are observed in clay flakes. (d) Pores in oriented kerogen-clay aggregates.

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