Coal Facies and Its Effects on Pore Characteristics of the Late Permian Longtan Coal, Western Guizhou, China

Figure 1

(a) Location of the South China block. (b) Tectonic characteristics of the South China block and the location of eastern Yunnan-western Guizhou area (based on [31, 40]). (c) Lithofacies paleogeography of eastern Yunnan-western Guizhou area (EY-WG) in the Late Permian (modified from [25, 26]) showing the sampling position of this study. TB: Tarim block; NCB: North China block; YB: Yangtze block; CB: Cathysia block.