Fig. 6

X-ray CT image analysis results for the Hiji outcrop samples. CT images of samples a HJ-8 and b MZ-5. CT number histograms for c HJ8-1, d HJ8-3, and e MZ-5. The modal CT number, NCTM, for each zone was calculated near the center (within the white dotted line), with the peripheral CT numbers excluded. CT number profiles for f HJ-8 and g MZ-5, with the values calculated along the dash–dotted lines in (a) and (b), respectively