ODP logging contractor: LDEO-BRG
Hole: 1140A
Leg: 183
Location: Kerguelen Plateau (Antarctic Ocean)
Latitude: 46° 16.599' S
Longitude: 68° 29. 4984' E
Logging date: January, 1999
Bottom felt: 2406 mbrf
Total penetration: 321.9 mbsf
Total core recovered: 144.9 m (45 %)

VSP TOOL USED: WST (Well Seismic Tool)

Acquisition Break Time: Time between start of recording and first break

Acquisition Transit Time: Time between shot firing (as recorded by blast phone) and first break. The shot is fired ~12 milliseconds after start of recording. The difference between Acquisition Break Time and Acquisition Transit Time is not constant and varies for each shot.

VSP STACKS SUMMARY LISTING (one-way transit times)

DEPTH ACQUISITION_ ACQUISITION_  ACQUISITION_
(mbsf) SHOT_TIME   BREAK_TIME    TRANSIT_TIME       
                     (s)             (s)             

318.998	29-01-1999:21:41:55	1.78461	1.775762
306.799	29-01-1999:21:42:32	1.781334	1.772372
295.100	29-01-1999:21:43:56	1.778947	1.769571
280.998	29-01-1999:21:44:49	1.774158	1.766764
269.097	29-01-1999:21:45:40	1.770322	1.76353
262.100	29-01-1999:21:48:19	1.768354	1.760485
251.998	29-01-1999:21:49:13	1.767647	1.758265
245.999	29-01-1999:21:51:08	1.764724	1.757166
148.999	29-01-1999:21:51:59	1.711817	1.704184
108.999	29-01-1999:21:52:51	1.687634	1.6801