Figure F34. Images illustrating core disturbances believed to be associated with methane escape, possibly related to gas hydrate dissociation during core recovery. A. Sediment showing splitting parallel to bedding over a zone of 23 cm (37-60 cm). Note that intensity inferred by spacing decreases away from the center of this zone. B. Splitting and crumbling of sediment adjacent to a void. C. Void with crumbling and splitting of sediment confined to a 15-cm sediment interval. D. Multiple occurrences of disrupted fabrics (as in A-C) over a 52-cm interval.

Figure F34. Images illustrating core disturbances believed to be associated with methane escape, possibly related to gas hydrate dissociation during core recovery. A. Sediment showing splitting parallel to bedding over a zone of 23 cm (37-60 cm). Note that intensity inferred by spacing decreases away from the center of this zone. B. Splitting and crumbling of sediment adjacent to a void. C. Void with crumbling and splitting of sediment confined to a 15-cm sediment interval. D. Multiple occurrences of disrupted fabrics (as in A-C) over a 52-cm interval.