Figure 8
From: Geometric Heterogeneity of Continental Shale in the Yanchang Formation, Southern Ordos Basin, China
Stratified lamina with various measurements. (A) Borehole TV images, where the lamina can clearly be seen. (B) SEM image of internal layers in shale of the Chang 7 Member at the millimeter scale. (C) Thin-section photomicrographs of laminated shale, showing a variety of sandy laminas with many round apatite concretions. (D) Processed color image in PCAS, showing objects being extracted from the pixel matrix.
