Table T1. Coring summary, Site 1257.
Hole 1257A
Latitude: 9°27.2302´N
Longitude: 54°20.5184´W
Time on site: 169.25 (1430 hr, 15 Jan–1530 hr, 22 Jan 2003)
Time on hole: 104.25 (1430 hr, 15 Jan–2245 hr, 19 Jan 2003)
Seafloor (drill pipe measurement from rig floor, mbrf): 2961.9
Distance between rig floor and sea level (m): 10.9
Water depth (drill pipe measurement from sea level, m): 2951.0
Total depth (drill pipe measurement from rig floor, mbrf): 3246.6
Total penetration (meters below seafloor, mbsf): 284.7
Total length of cored section (m): 284.7
Total core recovered (m): 216.05
Core recovery (%): 75.9
Total number of cores: 31
Total number of drilled intervals: 0
Hole 1257B
Latitude: 9°27.2184´N
Longitude: 54°20.5075´W
Time on hole: 38.58 (2245 hr, 19 Jan–1320 hr, 21 Jan 2003)
Seafloor (drill pipe measurement from rig floor, mbrf): 2961.9
Distance between rig floor and sea level (m): 10.9
Water depth (drill pipe measurement from sea level, m): 2951.0
Total depth (drill pipe measurement from rig floor, mbrf): 3189.2
Total penetration (meters below seafloor, mbsf): 227.3
Total length of cored section (m): 187.3
Total length of drilled intervals (m): 40.0
Total core recovered (m): 116.23
Core recovery (%): 62.1
Total number of cores: 27
Total number of drilled intervals: 1
Hole 1257C
Latitude: 9°27.2057´N
Longitude: 54°20.4955´W
Time on hole: 26.42 (1320 hr, 21 Jan–1530 hr, 22 Jan 2003)
Seafloor (drill pipe measurement from rig floor, mbrf): 2961.9
Distance between rig floor and sea level (m): 10.9
Water depth (drill pipe measurement from sea level, m): 2951.0
Total depth (drill pipe measurement from rig floor, mbrf): 3197.8
Total penetration (meters below seafloor, mbsf): 235.90
Total length of cored section (m): 153.9
Total length of drilled intervals (m): 82.0
Total core recovered (m): 96.60
Core recovery (%): 62.8
Total number of cores: 16
Total number of drilled intervals: 1
Core
Date
(Jan 2003)
Local
time
(hr)
Depth (mbsf)
Length (m)
Recovery
(%)
Remarks
Top
Bottom
Cored
Recovered
207-1257A-






1H 16 0030 0.0 2.6 2.6 2.59 99.6
2H 16 0130 2.6 12.1 9.5 9.89 104.1
3H 16 0315 12.1 21.6 9.5 10.02 105.5
4H 16 0430 21.6 31.1 9.5 10.00 105.3
5H 16 0550 31.1 40.6 9.5 9.90 104.2
6X 16 0825 40.6 44.9 4.3 6.21 144.4 AHC on
7X 16 0925 44.9 54.1 9.2 7.71 83.8 AHC on
8X 16 1030 54.1 63.7 9.6 7.87 82.0 AHC on
9X 16 1210 63.7 73.3 9.6 6.73 70.1 AHC on
10X 16 1315 73.3 83.0 9.7 8.26 85.2 AHC on
11X 16 1515 83.0 92.6 9.6 2.28 23.8 AHC on
12X 16 1645 92.6 102.2 9.6 5.77 60.1 AHC on
13X 16 1850 102.2 111.8 9.6 9.66 100.6
14X 16 2015 111.8 121.5 9.7 9.08 93.6
15X 16 2145 121.5 131.1 9.6 9.87 102.8
16X 16 2255 131.1 140.7 9.6 7.32 76.3
17X 17 0005 140.7 150.3 9.6 8.43 87.8
18X 17 0110 150.3 159.7 9.4 9.73 103.5
19X 17 0310 159.7 169.4 9.7 1.92 19.8
20X 17 0515 169.4 179.0 9.6 8.71 90.7
21X 17 0715 179.0 188.6 9.6 1.22 12.7
22X 17 1025 188.6 198.2 9.6 2.58 26.9
23X 17 1330 198.2 207.6 9.4 8.52 90.6
24X 17 1525 207.6 217.2 9.6 4.82 50.2
25X 17 1745 217.2 226.8 9.6 2.16 22.5
26X 17 2015 226.8 236.5 9.7 9.94 102.5
27X 17 2230 236.5 246.2 9.7 7.63 78.7
28X 18 0045 246.2 255.8 9.6 5.98 62.3
29X 18 0315 255.8 265.4 9.6 9.91 103.2
30X 18 0555 265.4 275.1 9.7 9.97 102.8
31X 18 0920 275.1 284.7 9.6 1.37 14.3



Cored totals: 284.7 216.05 75.9
207-1257B-









*****Drilled from 0.0 to 40.0 mbsf*****

1R 20 1020 40.0 44.8 4.8 3.77 78.5 AHC on
2R 20 1135 44.8 49.8 5.0 4.60 92.0 AHC on
3R 20 1220 49.8 59.4 9.6 5.63 58.7 AHC on
4R 20 1340 59.4 69.0 9.6 6.97 72.6 AHC on
5R 20 1430 69.0 78.7 9.7 4.98 51.3 AHC on
6R 20 1535 78.7 88.3 9.6 1.42 14.8 AHC on
7R 20 1625 88.3 97.9 9.6 3.26 34.0 AHC on
8R 20 1715 97.9 107.6 9.7 8.69 89.6 AHC on
9R 20 1825 107.6 117.2 9.6 9.96 103.8 AHC on
10R 20 1920 117.2 126.8 9.6 9.94 103.5 AHC on
11R 20 2015 126.8 136.2 9.4 9.19 97.8 AHC on
12R 20 2110 136.2 145.8 9.6 9.83 102.4 AHC on
13R 20 2155 145.8 155.5 9.7 8.69 89.6 AHC on
14R 20 2250 155.5 165.1 9.6 1.16 12.1 AHC on
15R 20 2350 165.1 170.1 5.0 0.02 0.4 AHC on
16R 21 0045 170.1 174.4 4.3 0.09 2.1
17R 21 0205 174.4 179.4 5.0 0.83 16.6 AHC on
18R 21 0255 179.4 183.7 4.3 0.50 11.6 AHC on
19R 21 0335 183.7 188.7 5.0 3.10 62.0
20R 21 0430 188.7 193.3 4.6 1.48 32.2
21R 21 0525 193.3 198.3 5.0 2.75 55.0
22R 21 0615 198.3 203.0 4.7 3.01 64.0
23R 21 0700 203.0 208.0 5.0 1.95 39.0
24R 21 0745 208.0 212.6 4.6 4.72 102.6 AHC on
25R 21 0850 212.6 217.6 5.0 2.68 53.6 AHC on
26R 21 1015 217.6 222.3 4.7 2.36 50.2 AHC on
27R 21 1145 222.3 227.3 5.0 4.65 93.0 AHC on



Cored totals: 187.3 116.23 62.1



Drilled total: 40.0





Total: 227.3


207-1257C-









*****Drilled from 0.0 to 82.0 mbsf*****

1R 21 1835 82.0 91.6 9.6 6.35 66.2 AHC on
2R 21 1935 91.6 101.2 9.6 1.28 13.3 AHC on
3R 21 2030 101.2 110.8 9.6 9.45 98.4 AHC on
4R 21 2125 110.8 120.5 9.7 9.90 102.1
5R 21 2205 120.5 130.1 9.6 6.52 67.9
6R 21 2250 130.1 139.5 9.4 9.64 102.6
7R 21 2330 139.5 149.1 9.6 9.53 99.3
8R 22 0015 149.1 158.7 9.6 9.43 98.2
9R 22 0115 158.7 168.4 9.7 7.74 79.8
10R 22 0225 168.4 178.0 9.6 2.82 29.4
11R 22 0325 178.0 187.7 9.7 1.88 19.4
12R 22 0440 187.7 197.3 9.6 2.76 28.8 AHC on
13R 22 0535 197.3 207.0 9.7 4.01 41.3 AHC on
14R 22 0635 207.0 216.6 9.6 3.24 33.8 AHC on
15R 22 0805 216.6 226.2 9.6 3.47 36.2 AHC on
16R 22 0940 226.2 235.9 9.7 8.58 88.5 AHC on



Cored totals: 153.9 96.60 62.8



Drilled total: 82.0





Total: 235.9


Note: AHC = active heave compensator.