RC2111 Cruise/project information ------------------------------------------------------------------------------------- Cruise Name RC2111 NGDC number 01010186 Platform Conrad Ship Operator LDEO Chief Scientist C Windisch Principal Investigator Not sure - probably Manik Talwani or William Ludwig All collaborating LDEO Institutions Beginning date 06/21/78 Ending date 07/23/78 MCS start date 06/24/78 MCS end date 07/17/78 Cruise Report yes - paper Start Port St. George's, Bermuda End Port St. John's, Newfoundland Project Name J-Anomaly Project Description MCS coverage of Sohm and Hattera abyssal plains to establish stratigraphic correlations between the basins; MCS and OBH study of the structure of the J-Anomaly ridge; MCS and OBH study of the ridge complex beneath the Nova Scotian continental rise and slope. Funding organization ONR Award # ONR N000-75-C-210 Abstract NO ------------------------------------------------------------------------------------- navigation type: US Navy Transit Satellite cdp navigation files in RC2111.cdpnav.tar: 147.cdpnav 148.cdpnav 149.cdpnav 150.cdpnav 151.cdpnav 152.cdpnav 152A.cdpnav 153.cdpnav 154.cdpnav 155.cdpnav 156.cdpnav 157.cdpnav 158.cdpnav RC2111.all.cdpnav Please note: All time are 'local' (3 hours behind GMT). Note: Nav files are in UTIG distribution format. Below is a listing of 1st and last cdps and lat/lon from each line cdpnav file: Position_Correlation_Method: Position is at center of cmp bin and time is the time the ships's antenna was over that position. Trace_Position: trace Source_CMP_offsets_Applied: yes 147.cdpnav 36.055555 -068.850657 28 1978 06 24 21 32 56 000 147 rc2111 41.739691 -056.265153 30359 1978 07 02 01 03 15 000 147 rc2111 148.cdpnav 41.751307 -056.300729 28 1978 07 02 02 03 06 000 148 rc2111 38.976360 -053.412855 7593 1978 07 03 18 58 25 000 148 rc2111 149.cdpnav 39.469939 -053.845845 28 1978 07 08 16 08 41 000 149 rc2111 39.075146 -054.611605 1844 1978 07 09 02 28 16 000 149 rc2111 150.cdpnav 39.085679 -054.599186 28 1978 07 09 03 25 28 000 150 rc2111 38.983905 -053.391386 1951 1978 07 09 14 21 36 000 150 rc2111 151.cdpnav 38.987236 -053.398081 28 1978 07 09 15 33 18 000 151 rc2111 38.584334 -054.082929 1591 1978 07 10 00 26 38 000 151 rc2111 152.cdpnav 38.568276 -054.008594 28 1978 07 10 01 47 59 000 152 rc2111 42.218851 -059.557156 12530 1978 07 13 00 54 02 000 152 rc2111 152A.cdpnav 42.237767 -059.572889 28 1978 07 13 01 09 21 000 152 rc2111 43.007631 -060.620767 2289 1978 07 13 14 00 59 000 152 rc2111 153.cdpnav 42.990052 -060.578165 28 1978 07 13 15 04 49 000 153 rc2111 44.651941 -055.422776 8093 1978 07 15 12 56 47 000 153 rc2111 154.cdpnav 44.549389 -055.383111 28 1978 07 15 15 21 14 000 154 rc2111 44.341977 -055.210493 485 1978 07 15 17 57 10 000 154 rc2111 155.cdpnav 44.357281 -055.193692 28 1978 07 15 19 15 08 000 155 rc2111 43.672939 -057.115351 3126 1978 07 16 12 52 18 000 155 rc2111 156.cdpnav 43.679848 -057.057653 28 1978 07 16 14 13 11 000 156 rc2111 43.910612 -057.213008 494 1978 07 16 16 52 14 000 156 rc2111 157.cdpnav 43.894408 -057.220640 28 1978 07 16 18 11 51 000 157 rc2111 44.147853 -056.118385 2099 1978 07 17 05 58 33 000 157 rc2111 158.cdpnav 44.140760 -056.138810 28 1978 07 17 06 08 19 000 158 rc2111 44.037006 -056.432390 449 1978 07 17 08 31 58 000 158 rc2111 processing: normal moveout and stack field data: cdp gathers at LDEO processed data files: Below is a list of SEG-Y stack files including header info from first and last traces each file. Note times in trace headers are local time (GMT=local + 3 hours). Also, some header times may be incorrect. The times in the cdpnav files should be correct. Fields are as follows: LINE CDP SHOT DATE TIME REC_DELAY SAMPLES SAMP_INT NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/147.stk.26_30359 147 26 26 0 06/24/1978 175/21:33:38.000 5000 3072 4000 00/00/ 0 147 30359 30359 0 07/02/1978 183/01:04:33.000 5500 3072 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/148.stk.24_7593 148 24 24 0 07/02/1978 183/02:03:06.000 5500 3072 4000 00/00/ 0 148 7593 7593 0 07/03/1978 184/18:59:43.000 6000 3072 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/149.stk.24_1840 149 24 24 0 07/08/1978 189/16:08:41.000 6000 3072 4000 00/00/ 0 149 1840 1840 0 07/09/1978 190/02:28:16.000 6000 3072 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/150.stk.24_1951 150 24 24 0 07/09/1978 190/03:25:28.000 6000 3072 4000 00/00/ 0 150 1951 1951 0 07/09/1978 190/14:22:57.000 6000 2561 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/151.stk.24_1591 151 24 24 0 07/09/1978 190/15:33:18.000 6000 2561 4000 00/00/ 0 151 1591 1591 0 07/10/1978 191/00:28:00.000 6000 2561 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/152.stk.24_12530 152 24 24 0 07/10/1978 191/01:47:59.000 6000 2561 4000 00/00/ 0 152 12530 12530 0 07/12/1978 193/23:59:43.000 5500 2561 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/152A.stk.38_2289 152 38 38 0 07/13/1978 194/01:14:15.000 5500 2541 4000 00/00/ 0 152 2289 2289 0 07/13/1978 194/14:02:21.000 2000 2539 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/153.stk.24_8093 153 24 24 0 07/13/1978 194/15:04:49.000 2000 2561 4000 00/00/ 0 153 8093 8093 0 07/15/1978 196/12:58:08.000 1000 3072 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/154.stk.24_485 154 24 24 0 07/15/1978 196/15:21:14.000 2000 3072 4000 00/00/ 0 154 485 485 0 07/15/1978 196/17:58:31.000 2000 3071 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/155.stk.24_3126 155 32 32 0 07/15/1978 196/19:17:56.000 2000 3072 4000 00/00/ 0 155 3126 3126 0 07/16/1978 197/12:53:40.000 2000 3071 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/156.stk.24_494 156 24 24 0 07/16/1978 197/14:13:11.000 2000 3072 4000 00/00/ 0 156 494 494 0 07/16/1978 197/16:53:36.000 2000 3071 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/157.stk.24_2099 157 24 24 0 07/16/1978 197/18:11:51.000 2000 3072 4000 00/00/ 0 157 2099 2099 0 07/17/1978 198/05:59:54.000 2500 3072 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2111/158.stk.24_449 158 24 24 0 07/17/1978 198/06:08:19.000 2500 3072 4000 00/00/ 0 158 449 449 0 07/17/1978 198/08:33:20.000 2500 3072 4000 00/00/ 0 ------------------------------------------------------------------------------------- processing system LDEO MCS Inhouse processing normal moveout and stack cdp spacing 50 meters ------------------------------------------------------------------------------------- RC2111 Seismic Acquisition Parameters ********************************************************** Number of Channels 24 Group Spacing 100 meters Source to Near Channel 300 meters (Not precise but typical for the Conrad at this time) Antenna to Source 40 meters " " " " Near Channel Number 24 Cable Depth UNKNOWN Acquisition System Name DSFIV Source Volume 932 or 1864 cu. in. Source Pressure 2000 psi Source Type Bolt 1500C Source Number 2 or 4 Source Depth UNKNOWN meters Shot Control Time (every 20 seconds for approximately 50 meters) Acquisition Sample Interval 4000 microseconds Record Length 12 seconds Compass No Active Tail Buoy No Recording Delay Yes Acquisition System Analog 2 or more ships No ********************************************************** ********************************************************** **********************************************************