Fig. 9From: Quantitative determination of the lowest density domain in major fault zones via medical X-ray computed tomographyX-ray CT image analysis results for the Mushu outcrop samples. CT images of the a YDA and b YK-1 samples. CT number histograms for c YDA-3, d YDA-4, and e YK-1. The NCTM values were calculated near the center (within the white dotted lines in (a) and (b)) of each zone, with the peripheral areas excluded. CT number profiles for f YDA and g YK-1, with the values calculated along the dash–dotted lines in (a) and (b), respectivelyBack to article page