RC2604 Cruise/project information ------------------------------------------------------------------------------------- Cruise Name RC2604 NGDC number 01010250 Platform Conrad Charles Darwin Ship Operator LDEO (Conrad) ? (Darwin) Chief Scientists Peter Buhl John Ladd Graham Westbrook Principal Investigators Peter Buhl Graham Westbrook (visiting from University of Birmingham, UK) All collaborating LDEO Institutions Beginning date 03/20/85 Ending date 04/02/85 MCS start date 03/21/85 MCS end date 04/01/85 Cruise Report yes Start Port Bridgetown, Barbados End Port Bridgetown, Barbados Project Name Barbados Ridge: Deformation Processes in the Forearc Accretionary Complex of the Lesser Antilles Subduction Zone Funding organization NSF Award # OCE83-17040 (LDEO) Abstract NO ------------------------------------------------------------------------------------- navigation type: GPS, Transit Satellite logged cdp navigation files in RC2604.cdpnav.tar: 465.cdpnav 466.cdpnav 467.cdpnav 469.cdpnav 470.cdpnav 471.cdpnav 473.cdpnav 474.cdpnav 476.cdpnav 478.cdpnav 479.cdpnav 480.cdpnav 481.cdpnav 482.cdpnav 483.cdpnav 484.cdpnav RC2604.all.cdpnav RC2604.line.start_end.cdpnav Position_Correlation_Method: Position is at center of cmp bin and time is the time (minute) the ship's antenna was over that position. Trace_Position: trace Source_CMP_offsets_Applied: yes Below is a listing of 1st and last cdps and lat/lon from each line cdpnav file: Latitude, Longitude, CMP, Year, Month, Day, Hour, Min, Sec, Msec, Linename, ------------------------------------------------------------------------------------- 465.cdpnav 16.199466 -058.426536 913 1985 03 22 08 03 07 940 465 rc2604 16.197800 -060.525919 5400 1985 03 23 08 45 06 228 465 rc2604 466.cdpnav 16.222626 -060.550473 279 1985 03 23 09 27 52 934 466 rc2604 16.464280 -060.179780 1234 1985 03 23 14 29 33 033 466 rc2604 467.cdpnav 16.515288 -060.141096 699 1985 03 23 16 42 18 154 467 rc2604 15.928110 -059.963088 2058 1985 03 24 00 00 14 476 467 rc2604 469.cdpnav 16.465370 -060.118608 630 1985 03 24 08 14 23 298 469 rc2604 16.829816 -060.267896 1501 1985 03 24 12 47 04 403 469 rc2604 470.cdpnav 16.880166 -060.265133 568 1985 03 24 13 34 28 107 470 rc2604 16.638023 -059.793804 1709 1985 03 24 19 59 35 538 470 rc2604 471.cdpnav 16.635782 -059.791673 430 1985 03 24 20 01 51 649 471 rc2604 15.942532 -059.516510 2081 1985 03 25 05 02 00 979 471 rc2604 473.cdpnav 16.310936 -059.666002 2513 1985 03 25 12 28 03 156 473 rc2604 14.750200 -058.750200 5985 1985 03 26 09 25 24 851 473 rc2604 474.cdpnav 14.722346 -058.752100 619 1985 03 26 09 45 03 340 474 rc2604 14.023318 -058.747500 2175 1985 03 26 18 13 21 230 474 rc2604 476.cdpnav 14.441998 -058.735172 512 1985 03 27 00 31 39 283 476 rc2604 14.426100 -059.408834 1962 1985 03 27 08 49 08 384 476 rc2604 478.cdpnav 13.887509 -059.340016 1731 1985 03 27 16 29 07 816 478 rc2604 14.395600 -060.269892 9876 1985 03 28 14 37 26 558 478 rc2604 479.cdpnav 14.381445 -060.304234 850 1985 03 28 15 30 20 022 479 rc2604 14.366898 -059.356010 4936 1985 03 29 02 04 46 130 479 rc2604 480.cdpnav 14.357200 -059.379702 2681 1985 03 29 04 52 15 352 480 rc2604 14.383114 -057.499278 10786 1985 03 30 03 50 21 515 480 rc2604 481.cdpnav 14.433800 -057.551847 1083 1985 03 30 05 07 05 495 481 rc2604 14.434800 -057.839541 2327 1985 03 30 08 24 48 039 481 rc2604 482.cdpnav 14.351015 -057.850873 1332 1985 03 30 09 41 12 864 482 rc2604 13.331525 -057.837800 5871 1985 03 30 22 23 12 435 482 rc2604 483.cdpnav 13.308900 -057.773124 984 1985 03 30 23 31 11 492 483 rc2604 13.294400 -057.422054 2506 1985 03 31 03 35 06 711 483 rc2604 484.cdpnav 13.340487 -057.407600 3058 1985 03 31 04 16 04 141 484 rc2604 13.453792 -060.118471 14814 1985 04 01 12 26 30 513 484 rc2604 field data shot gathers at LDEO processed data files: NOTE: The 'C_C' files are stacks of Conrad shots recorded on the Conrad. The 'D_C' files are stacks of Darwin shots recorded on the Conrad. The 'C_C.D_C' fi;les are stacks of both the Conrad and Darwin shots recorded on the Conrad. Below is a list of SEG-Y stack files including header info from first and last traces each file. Fields are as follows: LINE CDP SHOT DATE TIME REC_DELAY SAMPLES SAMP_INT ------------------------------------------------------------------------------------- NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/465.C_C.stk.944_5400 465 944 944 03/23/1985 082/08:21:20.000 0 3068 4000 465 5400 5400 03/23/1985 082/08:46:45.000 4000 3072 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/465.D_C.stk.913_5400 465 913 913 03/23/1985 082/08:28:21.000 1500 3072 4000 465 5400 5400 03/23/1985 082/09:14:24.000 4000 3060 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/465.C_C.D_C.stk.913_5400 465 913 913 03/23/1985 082/08:28:21.000 1500 3072 4000 465 5400 5400 03/23/1985 082/09:14:24.000 4000 3060 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/466.C_C.stk.279_1234 466 279 66 03/23/1985 082/09:37:44.000 4000 3068 4000 466 1234 900 03/23/1985 082/14:30:55.000 5000 3068 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/467.C_C.stk.680_2058 467 680 680 03/23/1985 082/16:45:01.000 0 7107 4000 CDPSP GAP BETWEEN 1656 AND 1679 467 1656 0 03/23/1985 082/21:47:01.000 0 7107 4000 467 1679 0 03/23/1985 082/22:02:01.000 0 7107 4000 467 2058 2058 03/24/1985 083/00:02:01.000 0 7107 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/469.C_C.stk.618_1501 469 618 618 03/24/1985 083/08:19:34.000 4000 3072 4000 469 1501 1501 03/24/1985 083/12:48:14.000 4000 3068 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/470.C_C.stk.568_1709 470 568 20 03/24/1985 083/13:43:34.000 4000 3067 4000 CDPSP GAP BETWEEN 1247 AND 1271 470 1247 0 03/24/1985 083/17:20:54.000 4000 3068 4000 48 470 378 0 03/24/1985 083/17:42:14.000 4000 3068 4000 2 470 1709 699 03/24/1985 083/20:00:45.000 5000 3068 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/471.C_C.stk.402_2081 471 402 402 03/24/1985 083/20:01:35.000 5000 3068 4000 00/00/ 0 471 2081 2081 03/25/1985 084/05:03:29.000 4000 3067 4000 00/00/ 0 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/473.C_C.stk.2513_5985 473 2513 47 03/25/1985 084/12:40:24.000 4000 3068 4000 CDPSP GAP BETWEEN 5480 AND 5506 473 5480 0 03/26/1985 085/06:26:40.000 4000 3068 4000 473 2648 0 03/26/1985 085/06:44:10.000 4000 3068 4000 473 5985 3039 03/26/1985 085/09:27:05.000 4000 3068 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/474.C_C.stk.591_2175 474 591 591 03/26/1985 085/09:45:00.000 4000 3068 4000 CDPSP GAP BETWEEN 1306 AND 1344 474 1306 0 03/26/1985 085/13:37:55.000 4000 3068 4000 474 1344 0 03/26/1985 085/13:57:52.000 0 3068 4000 474 2175 2175 03/26/1985 085/18:14:37.000 4000 3067 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/476.C_C.stk.510_1962 476 510 20 03/27/1985 086/00:40:10.000 25000 3072 4000 476 1962 1197 03/27/1985 086/08:50:34.000 3000 3068 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/478.C_C.stk.1719_9876 478 1719 1719 03/27/1985 086/16:36:01.000 0 3072 4000 478 9876 9876 03/28/1985 087/14:39:14.000 3000 3068 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/479.C_C.stk.909_4936 479 909 909 03/28/1985 087/15:48:24.000 3000 3068 4000 479 4936 4936 03/29/1985 088/02:06:24.000 3000 3067 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/479.D_C.stk.803_4830 479 803 803 03/28/1985 087/15:48:05.000 2500 3012 4000 479 4830 4830 03/29/1985 088/02:06:06.000 3500 3011 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/480.C_C.stk.2628_10786 480 2628 2628 03/29/1985 088/04:53:01.000 0 3069 4000 CDPSP GAP BETWEEN 3528 AND 3595 480 3528 0 03/29/1985 088/07:16:45.000 4000 3067 4000 480 3595 0 03/29/1985 088/07:35:00.000 0 3069 4000 480 10786 10786 03/30/1985 089/03:52:04.000 4000 5115 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/480.D_C.stk.2532_10680 480 2532 2532 03/29/1985 088/04:54:22.000 500 3069 4000 CDPSP GAP BETWEEN 3421 AND 3496 480 3421 0 03/29/1985 088/07:16:26.000 3000 3104 4000 480 3496 0 03/29/1985 088/07:36:31.000 500 3069 4000 CDPSP GAP BETWEEN 10490 AND 10506 480 10490 0 03/30/1985 089/03:28:35.000 3500 5120 4000 480 10506 0 03/30/1985 089/03:29:35.000 3500 5120 4000 480 10680 10680 03/30/1985 089/03:51:35.000 3500 5120 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/481.C_C.stk.1182_2327 481 1182 1182 03/30/1985 089/05:31:00.000 21000 5120 4000 CDPSP GAP BETWEEN 1367 AND 1394 481 1367 0 03/30/1985 089/06:00:04.000 4000 5116 4000 481 1394 0 03/30/1985 089/06:05:04.000 4000 5116 4000 CDPSP GAP BETWEEN 1965 AND 1979 481 1965 0 03/30/1985 089/07:35:04.000 4000 5116 4000 481 1979 0 03/30/1985 089/07:38:04.000 4000 5116 4000 481 2327 2327 03/30/1985 089/08:33:04.000 4000 5116 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/481.D_C.stk.1081_2219 481 1081 1081 03/30/1985 089/05:31:35.000 3500 5076 4000 CDPSP GAP BETWEEN 1263 AND 1290 481 1263 0 03/30/1985 089/06:00:35.000 3500 5076 4000 481 1290 0 03/30/1985 089/06:05:35.000 3500 5076 4000 481 2219 2219 03/30/1985 089/08:32:35.000 3500 5076 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/482.C_C.D_C.stk.1253_5871 482 1358 29 03/30/1985 089/09:55:04.000 3500 4096 4000 482 5871 1529 03/30/1985 089/22:25:04.000 3500 4096 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/482.C_C.stk.1253_5871 482 1358 29 03/30/1985 089/09:55:04.000 3500 4096 4000 482 5871 1529 03/30/1985 089/22:25:04.000 3500 4096 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/482.D_C.stk.1253_5871 482 1253 30 03/30/1985 089/09:55:35.000 3500 4096 4000 482 5871 1566 03/30/1985 089/22:43:35.000 3500 4096 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/483.C_C.stk.1021_2506 483 1021 1021 03/30/1985 089/23:45:04.000 4000 5115 4000 483 2506 2506 03/31/1985 090/03:44:04.000 4000 5115 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/483.D_C.stk.917_2405 483 917 917 03/30/1985 089/23:45:35.000 3500 5077 4000 483 2405 2405 03/31/1985 090/03:44:35.000 3500 5077 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/484.C_C.stk.3069_14814 484 3069 3069 03/31/1985 090/04:29:04.000 4000 5115 4000 484 14814 14814 04/01/1985 091/12:28:00.000 0 5117 4000 NEXT FILE /data/mstorer2/ldeo_1/users/link/seismic/processed/RC2604/484.D_C.stk.2964_14707 484 2964 2964 03/31/1985 090/04:29:35.000 3500 5077 4000 484 14707 14707 04/01/1985 091/12:27:31.000 0 4953 4000 processing system LDEO MCS Inhouse processing normal moveout and stack cdp spacing 50 meter lines 465, 467, 469,470,471,473,474,476 25 meter lines 478, 479, 480, 481, 482, 483, 484 ------------------------------------------------------------------------------------- Seismic Acquisition Parameters ********************************************************** Number of Channels 48 Group Spacing 50 meters Source to Near Channel 300 meters Antenna to Source 48 meters CONRAD Radist Antenna to Source 47 meters Darwin Near Channel Number 48 Cable Depth 30-50 ft Acquisition System Name DFSIV Source Volume 2791 cu. in. (Conrad) 2466 cu. in. (Darwin) Source Pressure 1800 psi Source Type Bolt 1500C Source Number 4 Source Depth ? meters Shot Control Time (variable) 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 Yes ********************************************************** ********************************************************** **********************************************************