Research Article
Three-Dimensional Morphology and Connectivity of Organic Pores in Shale from the Wufeng and Longmaxi Formations at the Southeast Sichuan Basin in China
Figure 4
Graptolite photographs and energy spectrum of the Wufeng-Longmaxi Formation shale in the southeast Sichuan Basin. The fragment is graphitic, that is, mainly composed of carbon. The fragment is encased in clay minerals and carbonate minerals.