Plate P13. Sample 201-1230A-31X-1, 0–19 cm; 229.6 mbsf. A, B. Strongly replaced fossil (foraminifer?) showing concentric rim structure with pyrite filling the central cavity (cross-polarized light). C, D. Cathode luminescence microscopy reveals darker crystals in the clasts and brighter luminescence in the matrix/cement between the clasts. Both generations of cement are clearly separated by a bright yellow luminescent rim surrounding all parts of the clast. Crystals in the clast must, therefore, predate the cementation of the space between the clasts. The latter was formed during several generations of infill and cementation during deformation, leaving a central cavity with fine pyrite precipitates.

Plate P13. Sample 201-1230A-31X-1, 0–19 cm; 229.6 mbsf. A, B. Strongly replaced fossil (foraminifer?) showing concentric rim structure with pyrite filling the central cavity (cross-polarized light). C, D. Cathode luminescence microscopy reveals darker crystals in the clasts and brighter luminescence in the matrix/cement between the clasts. Both generations of cement are clearly separated by a bright yellow luminescent rim surrounding all parts of the clast. Crystals in the clast must, therefore, predate the cementation of the space between the clasts. The latter was formed during several generations of infill and cementation during deformation, leaving a central cavity with fine pyrite precipitates.