Figure F8. Photographs of Sample 204-1249F-8H-2, 117-127 cm. A. Shows the top of the whole-round sample before splitting (diameter of whole-round sample is 6.6 cm). Large red arrow marks a thin vein of gas hydrate. The grayish white cover on the sediment is ice. B. After splitting the whole-round core perpendicular to the core axis. The large red arrow marks the enlarged gas hydrate vein and the small red arrow a thinner subparallel vein. The yellow arrow marks a spot of black sulfide precipitates. C. Second split of the bottom part of the whole-round sample. The large red arrow marks the dominate vein, spanning almost the whole sample. The small red arrow indicated a second smaller vein. The surface is covered by a very thin layer of gas hydrate. Black spots of sulfide precipitates are marked by yellow arrows.

Figure F8. Photographs of Sample 204-1249F-8H-2, 117-127 cm. A. Shows the top of the whole-round sample before splitting (diameter of whole-round sample is 6.6 cm). Large red arrow marks a thin vein of gas hydrate. The grayish white cover on the sediment is ice. B. After splitting the whole-round core perpendicular to the core axis. The large red arrow marks the enlarged gas hydrate vein and the small red arrow a thinner subparallel vein. The yellow arrow marks a spot of black sulfide precipitates. C. Second split of the bottom part of the whole-round sample. The large red arrow marks the dominate vein, spanning almost the whole sample. The small red arrow indicated a second smaller vein. The surface is covered by a very thin layer of gas hydrate. Black spots of sulfide precipitates are marked by yellow arrows.