Core
|
Date (2010)
|
Time (UTC)
|
Depth (mbsf)
|
Length (m)
|
Recovery (%)
|
Comments
|
Top
|
Bottom
|
Cored
|
Recovered
|
325-M0040A-
|
1R
|
5 Mar
|
2250
|
0
|
1.5
|
1.5
|
1.92
|
128.00
|
Drill string sank 1.4 m under its own weight with no drilling required.
|
2R
|
5 Mar
|
2330
|
1.5
|
3
|
1.5
|
0.17
|
11.33
|
|
3R
|
6 Mar
|
0020
|
3
|
5
|
2
|
0.24
|
12.00
|
|
4R
|
6 Mar
|
0230
|
5
|
6.5
|
1.5
|
0.27
|
18.00
|
|
5R
|
6 Mar
|
0320
|
6.5
|
8
|
1.5
|
0.77
|
51.33
|
|
6R
|
6 Mar
|
0410
|
8
|
9.5
|
1.5
|
1.12
|
74.67
|
Spring core lifter twisted out of shoe—metal in core.
|
7R
|
6 Mar
|
0450
|
9.5
|
11
|
1.5
|
0.52
|
34.67
|
|
8R
|
6 Mar
|
0550
|
11
|
12.5
|
1.5
|
1.43
|
95.33
|
|
9R
|
6 Mar
|
0625
|
12.5
|
14
|
1.5
|
0.48
|
32.00
|
|
10R
|
6 Mar
|
0715
|
14
|
15.5
|
1.5
|
0.61
|
40.67
|
|
11R
|
6 Mar
|
0755
|
15.5
|
18.5
|
3
|
1.6
|
53.33
|
|
12R
|
6 Mar
|
0825
|
18.5
|
21.5
|
3
|
2.6
|
86.67
|
|
325-M0041A-
|
1R
|
6 Mar
|
1005
|
0
|
3
|
3
|
2.09
|
69.67
|
|
2R
|
6 Mar
|
1040
|
3
|
5.4
|
2.4
|
0.86
|
35.83
|
|
3R
|
6 Mar
|
1115
|
5.4
|
6.9
|
1.5
|
0.47
|
31.33
|
|
4R
|
6 Mar
|
1150
|
6.9
|
8.4
|
1.5
|
0.29
|
19.33
|
|
5R
|
6 Mar
|
1225
|
8.4
|
9.9
|
1.5
|
0.35
|
23.33
|
|
6R
|
6 Mar
|
1310
|
9.9
|
11.4
|
1.5
|
0.44
|
29.33
|
|
7R
|
6 Mar
|
1345
|
11.4
|
12.9
|
1.5
|
0.45
|
30.00
|
|
8R
|
6 Mar
|
1425
|
12.9
|
14.6
|
1.7
|
0.66
|
38.82
|
|
9R
|
6 Mar
|
1500
|
14.6
|
16.1
|
1.5
|
0
|
0.00
|
No recovery; assumed to be sand lost on retrieval.
|
10R
|
6 Mar
|
1530
|
16.1
|
17.6
|
1.5
|
0.96
|
64.00
|
|
11R
|
6 Mar
|
1610
|
17.6
|
19.1
|
1.5
|
1.33
|
88.67
|
|
12R
|
6 Mar
|
1650
|
19.1
|
22.1
|
3
|
2.16
|
72.00
|
|
325-M0042A-
|
1R
|
7 Mar
|
0330
|
0
|
2
|
2
|
0.4
|
20.00
|
|
2R
|
7 Mar
|
0405
|
2
|
4
|
2
|
0.3
|
15.00
|
|
3R
|
7 Mar
|
0500
|
4
|
5.5
|
1.5
|
0.32
|
21.33
|
Broken latch head dog—repaired after run.
|
4R
|
7 Mar
|
0640
|
5.5
|
7.5
|
2
|
1.1
|
55.00
|
|
5R
|
7 Mar
|
0705
|
7.5
|
9.5
|
2
|
0.33
|
16.50
|
Change to HQ string after run.
|
6R
|
7 Mar
|
1230
|
9.5
|
10.7
|
1.2
|
0
|
0.00
|
API “casing” sank 1.5 m in soft sediments—caused HQ string to vibrate but no damage done.
|
7R
|
7 Mar
|
1330
|
10.7
|
12.2
|
1.5
|
0
|
0.00
|
Bit blocked—attempt to free by flushing. API “casing” sinks again—now resting on reentry cone on seabed template causing API string to swab the hole. Trip HQ and continue with API until a hard layer is encountered.
|
8W
|
7 Mar
|
1500
|
12.2
|
12.2
|
0
|
0.65
|
0.00
|
Sample recovered from tripped HQ BHA.
|
9R
|
7 Mar
|
1720
|
12.2
|
13.7
|
1.5
|
0.2
|
13.33
|
|
10R
|
7 Mar
|
1800
|
13.7
|
15.2
|
1.5
|
0.2
|
13.33
|
|
11R
|
7 Mar
|
1900
|
15.2
|
16.7
|
1.5
|
0.5
|
33.33
|
|
12R
|
7 Mar
|
1930
|
16.7
|
17.5
|
0.8
|
0.2
|
25.00
|
|
13R
|
7 Mar
|
2020
|
17.5
|
19
|
1.5
|
0.57
|
38.00
|
|
14R
|
7 Mar
|
2100
|
19
|
20.5
|
1.5
|
0.25
|
16.67
|
|
15R
|
7 Mar
|
2135
|
20.5
|
22
|
1.5
|
0.14
|
9.33
|
|
16R
|
7 Mar
|
2205
|
22
|
23.5
|
1.5
|
0.2
|
13.33
|
|
17R
|
7 Mar
|
2240
|
23.5
|
25
|
1.5
|
0.33
|
22.00
|
|
18R
|
7 Mar
|
2320
|
25
|
26.5
|
1.5
|
0.43
|
28.67
|
|
19R
|
8 Mar
|
0010
|
26.5
|
28
|
1.5
|
0.27
|
18.00
|
|
20R
|
8 Mar
|
0050
|
28
|
29.5
|
1.5
|
0.43
|
28.67
|
|
21R
|
8 Mar
|
0130
|
29.5
|
32.5
|
3
|
0.34
|
11.33
|
|
22R
|
8 Mar
|
0200
|
32.5
|
34
|
1.5
|
0.39
|
26.00
|
|
23R
|
8 Mar
|
0310
|
34
|
35.2
|
1.2
|
0.6
|
50.00
|
|
24R
|
8 Mar
|
0355
|
35.2
|
36.7
|
1.5
|
0.46
|
30.67
|
|
25R
|
8 Mar
|
0435
|
36.7
|
38.7
|
2
|
0.69
|
34.50
|
|
26R
|
8 Mar
|
0500
|
38.7
|
40.2
|
1.5
|
0.13
|
8.67
|
|
27R
|
8 Mar
|
0540
|
40.2
|
42.2
|
2
|
0.38
|
19.00
|
|
28R
|
8 Mar
|
0615
|
42.2
|
44.4
|
2.2
|
0.56
|
25.45
|
|
29R
|
8 Mar
|
0705
|
44.4
|
46.4
|
2
|
0.57
|
28.50
|
Broken latch head dog—repaired after run.
|
325-M0043A-
|
1R
|
9 Mar
|
0840
|
0
|
2.2
|
2.2
|
0.17
|
7.73
|
Bottom 0.5 m of hole collapsed while running in a new pipe after the first coring run.
|
2R
|
9 Mar
|
0920
|
2.2
|
4.2
|
2
|
0.52
|
26.00
|
High torque during drilling.
|
3R
|
9 Mar
|
0955
|
4.2
|
5.7
|
1.5
|
0.31
|
20.67
|
High torque during drilling.
|
4R
|
9 Mar
|
1030
|
5.7
|
7.2
|
1.5
|
0
|
0.00
|
High torque during drilling.
|
5R
|
9 Mar
|
1105
|
7.2
|
8.7
|
1.5
|
0.12
|
8.00
|
|
6R
|
9 Mar
|
1140
|
8.7
|
10.2
|
1.5
|
0.33
|
22.00
|
|
7R
|
9 Mar
|
1230
|
10.2
|
11.7
|
1.5
|
0.12
|
8.00
|
Shoe jammed with broken coral pieces.
|
8R
|
9 Mar
|
1310
|
11.7
|
12.5
|
0.8
|
0.24
|
30.00
|
|
9R
|
9 Mar
|
1420
|
12.5
|
14
|
1.5
|
0.57
|
38.00
|
|
10R
|
9 Mar
|
1510
|
14
|
15.5
|
1.5
|
0.65
|
43.33
|
|
11R
|
9 Mar
|
1550
|
15.5
|
17
|
1.5
|
0.5
|
33.33
|
|
12R
|
9 Mar
|
1625
|
17
|
18.5
|
1.5
|
0.42
|
28.00
|
|
13R
|
9 Mar
|
1700
|
18.5
|
20
|
1.5
|
0.12
|
8.00
|
|
14R
|
9 Mar
|
1740
|
20
|
21.5
|
1.5
|
0.2
|
13.33
|
|
15R
|
9 Mar
|
1820
|
21.5
|
23
|
1.5
|
0.17
|
11.33
|
|
16R
|
9 Mar
|
1900
|
23
|
24.5
|
1.5
|
0.37
|
24.67
|
|
17R
|
9 Mar
|
1940
|
24.5
|
26
|
1.5
|
0.2
|
13.33
|
|
18R
|
9 Mar
|
2020
|
26
|
27.5
|
1.5
|
0.32
|
21.33
|
|
19R
|
9 Mar
|
2100
|
27.5
|
29
|
1.5
|
0.05
|
3.33
|
Large coral piece blocking shoe.
|
20R
|
9 Mar
|
2140
|
29
|
30.5
|
1.5
|
0.14
|
9.33
|
|
21R
|
9 Mar
|
2220
|
30.5
|
32
|
1.5
|
0.27
|
18.00
|
|
22R
|
9 Mar
|
2310
|
32
|
33.5
|
1.5
|
0.15
|
10.00
|
|
23R
|
9 Mar
|
2350
|
33.5
|
35
|
1.5
|
0.1
|
6.67
|
|
325-M0044A-
|
1R
|
10 Mar
|
0320
|
0
|
2.5
|
2.5
|
0.2
|
8.00
|
Fluorescent microspheres.
|
2R
|
10 Mar
|
0405
|
2.5
|
4
|
1.5
|
0.05
|
3.33
|
Switched to spring lifter as lithology very hard.
|
3R
|
10 Mar
|
0555
|
4
|
4.5
|
0.5
|
0
|
0.00
|
Decrease space between shoe and ALN bit to reduce mud flow and so limit unconsolidated material being flushed away.
|
4R
|
10 Mar
|
0700
|
4.5
|
5.5
|
1
|
0.2
|
20.00
|
Mud pressure remains low.
|
5R
|
10 Mar
|
0800
|
5.5
|
7
|
1.5
|
0.25
|
16.67
|
Significant vibration through drill string.
|
6R
|
10 Mar
|
0855
|
7
|
8
|
1
|
0.14
|
14.00
|
Shoe was loose in the inner barrel—reason unknown. Template lowered in water column in an attempt to dampen drill string vibrations.
|
7R
|
10 Mar
|
1000
|
8
|
9
|
1
|
0.13
|
13.00
|
|
8R
|
10 Mar
|
1100
|
9
|
10
|
1
|
0.36
|
36.00
|
|
9R
|
10 Mar
|
1615
|
10
|
11
|
1
|
0.34
|
34.00
|
ALN stuck in barrel. During recovery attempt the wireline parted—pipe tripped to recover barrel and overshot.
|
325-M0045A-
|
1R
|
10 Mar
|
2130
|
0
|
2
|
2
|
0
|
0.00
|
First attempt at spudding in was aborted as string slipped 3 m rapidly—assumed to have “slid” down the side of a pinnacle/mound.
|
2R
|
10 Mar
|
2205
|
2
|
3.5
|
1.5
|
0
|
0.00
|
|
3R
|
10 Mar
|
2225
|
3.5
|
5
|
1.5
|
0
|
0.00
|
|
4R
|
10 Mar
|
2335
|
5
|
14.6
|
9.6
|
0
|
0.00
|
Continued problems with the drill string slipping. Solid drilling encountered between 4.3 and 5 mbsf, but then the string slipped to 14.6 m with no resistance—hole aborted
|
325-M0046A-
|
1R
|
11 Mar
|
0130
|
–10.8
|
–4.53
|
6.27
|
0.13
|
2.07
|
Problems with pipe apparently “skipping” down a slope.
|
2R
|
11 Mar
|
0220
|
–4.53
|
–1.8
|
2.73
|
0.13
|
4.76
|
Problems with pipe apparently “skipping” down a slope.
|
3R
|
11 Mar
|
0320
|
–1.8
|
1.2
|
3
|
0.25
|
8.33
|
Problems with pipe apparently “skipping” down a slope.
|
4R
|
11 Mar
|
0420
|
1.2
|
4.2
|
3
|
0.26
|
8.67
|
Coring solid lithology.
|
5R
|
11 Mar
|
0520
|
4.2
|
5.2
|
1
|
0.43
|
43.00
|
|
6R
|
11 Mar
|
0550
|
5.2
|
6.7
|
1.5
|
0.33
|
22.00
|
|
7R
|
11 Mar
|
0630
|
6.7
|
8.2
|
1.5
|
0.32
|
21.33
|
|
8R
|
11 Mar
|
0705
|
8.2
|
10.2
|
2
|
0
|
0.00
|
|
9R
|
11 Mar
|
0740
|
10.2
|
12.4
|
2.2
|
0.25
|
11.36
|
|
10R
|
11 Mar
|
0840
|
12.4
|
14.4
|
2
|
0.11
|
5.50
|
Hole collapsed 1 m while recovering barrel.
|
11R
|
11 Mar
|
0920
|
13.4
|
16.4
|
3
|
0.13
|
4.33
|
Top 1 m of core represents infill.
|
12R
|
11 Mar
|
1000
|
16.4
|
18.4
|
2
|
0.22
|
11.00
|
|
13R
|
11 Mar
|
1035
|
18.4
|
20.4
|
2
|
0.22
|
11.00
|
|
325-M0047A-
|
1R
|
11 Mar
|
1430
|
0
|
3.2
|
3.2
|
0
|
0.00
|
|
2R
|
11 Mar
|
1510
|
3.2
|
6.2
|
3
|
0.2
|
6.67
|
Contained definite seabed sample at top of core, suggesting first run seabed tag was actually drill string resting on a protrusion which broke off, causing the string to rapidly descend to 3.2 mbsf.
|
3R
|
11 Mar
|
1550
|
6.2
|
7.7
|
1.5
|
0.37
|
24.67
|
|
4R
|
11 Mar
|
1630
|
7.7
|
9.2
|
1.5
|
0.24
|
16.00
|
|
5R
|
11 Mar
|
1710
|
9.2
|
12.2
|
3
|
0.28
|
9.33
|
|
6R
|
11 Mar
|
1800
|
12.2
|
15.2
|
3
|
0.24
|
8.00
|
|
7R
|
11 Mar
|
1835
|
15.2
|
18.2
|
3
|
0.26
|
8.67
|
|
8R
|
11 Mar
|
1930
|
18.2
|
21.2
|
3
|
0.42
|
14.00
|
|
9R
|
11 Mar
|
2030
|
21.2
|
24.2
|
3
|
0.23
|
7.67
|
Decrease space between shoe and ALN bit to reduce mud flow and so limit unconsolidated material being flushed away.
|
10R
|
11 Mar
|
2115
|
24.2
|
27.2
|
3
|
0.33
|
11.00
|
|
11R
|
11 Mar
|
2200
|
27.2
|
28.7
|
1.5
|
0.4
|
26.67
|
|
12R
|
11 Mar
|
2240
|
28.7
|
30.2
|
1.5
|
0.29
|
19.33
|
|
13R
|
11 Mar
|
2325
|
30.2
|
31.7
|
1.5
|
0.22
|
14.67
|
|
14R
|
12 Mar
|
0015
|
31.7
|
33.2
|
1.5
|
0.31
|
20.67
|
|
325-M0048A-
|
1R
|
12 Mar
|
0405
|
0
|
3
|
3
|
0.12
|
4.00
|
Fluorescent microspheres.
|
2R
|
12 Mar
|
0445
|
3
|
4.5
|
1.5
|
0.32
|
21.33
|
|
3R
|
12 Mar
|
0520
|
4.5
|
6
|
1.5
|
0.25
|
16.67
|
|
4R
|
12 Mar
|
0600
|
6
|
7.1
|
1.1
|
0
|
0.00
|
Coring operations aborted because of bad weather—winds >35 kt and heave >2.5 m.
|
Notes: UTC = Universal Time Coordinated, API = American Petroleum Institute, BHA = bottom-hole assembly, ALN = alien corer (standard rotary corer). Negative depth values indicate depth corrections made during the OSP, to account for the drill string not penetrating the seabed on Runs IR–3R, thereby indicating progression through the water column and along the side of a topographic high.