Figure F19. Computed tomography (CT) images of shear zones. Note the relatively high CT number in shear zones with respect to the surrounding material. A. Shear zone (interval 316-C0004D-12R-1, 52.2 cm). B. Fragment in drilling-induced breccia in which two shear zones are developed (interval 316-C0004D-21R-1, 0–23 cm).
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