Figure F30. Characteristic examples of slickenlined surfaces in intact cuttings (>4 mm) formed by silty claystone. A. Sample 348-C0002N-083-SMW (1235.5 mbsf). B. Sample 175-SMW (1665.5 mbsf). C. Sample 276-SMW (2095.5 mbsf). D. Sample 185-SMW (2570.5 mbsf). E. Photomicrograph of cross-section of slickenlined surface (thin section was made perpendicular to the slickenlined surface in the upper part of the image). Note the preferred alignment of clay minerals parallel to the slickenlined surface, constituting a 100 µm thick band (Sample 259-SMW; 2015.5 mbsf). F. Stepped slickenlined surface (Sample 160-SMW; 1595.5 mbsf).
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