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AAPG Bulletin
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AAPG Bulletin; Year: 2021; Issue: August DOI: 10.1306/02262118214
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Figure 11.
Example of computer-assisted backscattered electron image analysis of microporous kaolinite books. (A) Image with complete gray tone scale. (B) Image after deletion of gray tones (microporosity). Dotted yellow lines show the mineral–epoxy boundary before and after the fuzzy halo of gray tones is deleted. The blue circle and arrows in (B) show the pore-aperture diameter of the largest pore (1 μm). The red arrow shows the pore-aperture radii of the largest pore (0.5 μm; <0.5 μm = microporosity). Black scale bar = 5 μm. Magnification 4800×.
Figure 11. Example of computer-assisted backscattered electron image analysis of microporous kaolinite books. (A) Image with complete gray tone scale. (B) Image after deletion of gray tones (microporosity). Dotted yellow lines show the mineral–epoxy boundary before and after the fuzzy halo of gray tones is deleted. The blue circle and arrows in (B) show the pore-aperture diameter of the largest pore (1 μm). The red arrow shows the pore-aperture radii of the largest pore (0.5 μm; <0.5 μm = microporosity). Black scale bar = 5 μm. Magnification 4800×.