Paleoenvironment, Geochemistry, and Pore Characteristics of the Postmature to Overmature Organic-Rich Devonian Shales in Guizhong Depression, Southwestern China

Figure 7

SEM images of microscopic pores from the siliceous shale (255 m of well GY-1, S-2 in Figure 3): (a, b) OM-pores, (c, d) OM-clay mineral complexes, (e, f) micropores in the quartz particles, (g) residual pores between pyrite crystals are filled with organic matter, and micropores are developed within it or/and at the edge, and (h) no OM-pores developed in some organic matter.

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