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

Figure 8

SEM images of microscopic pores from the siliceous lime shale (231 m of well GY-1, C-1 in Figure 3): (a) OM-pores, (b) differentially developed OM-pores, (c, e) shrunk microfractures between organic matter and minerals, (d) OM-pores and clay minerals, (f) microfractures along with minerals, (g) residual pores between pyrite crystals and a little organic matter, and (h) shrunk microfractures.

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