Figure F13. Comparisons of the (A) time and (B) depth sections of line I95-152 in the vicinity of Site 1103. The depth migration is based on the new velocity data. Note the differences in depth scale and apparent S1/S3 geometry between the time section (A) (see figure F36 in Shipboard Scientific Party, 1999b) with an approximate depth annotation, and the depth migrated section presented by this study (B). The presented data confirms the location of the shelf unconformity S1/S3 at 222 ms TWT or 243 mbsf. The unconformity is seismically expressed by a strong negative and subsequent positive reflection. Please refer to Shipboard Scientific Party (1999b) for a detailed description of seismic units and major reflectors (a-e) shown in (A).