Ocean Drilling Program: Leg 206 Preliminary Report

Table T5. Site 1256 operations summary.

Core

Top (mbsf)

Cored (m)

Curated (m)

Recovered (m)

Recovery (%)

Date (2002)

Time (local)

Comment

206-1256A-

1H
0.0

2.3

2.37
2.37
103.00
15-Nov
0700

206-1256B-

1H
0.0

6.1

6.14
6.14
100.70
Nov 15
0835

2H
6.1

9.5

9.86
9.86
103.80
Nov 15
0935
Tensor on @ 0930 hr

3H
15.6

9.5

9.88
9.88
104.00
Nov 15
1030
Tensor on @ 0930 hr

4H
25.1

9.5

10.18
10.18
107.20
Nov 15
1155

5H
34.6

9.5

9.92
9.92
104.40
Nov 15
1235

6H
44.1

9.5

10.01
10.01
105.40
Nov 15
1405

7H
53.6

9.5

9.84
9.84
103.60
Nov 15
1500

8H
63.1

9.5

9.96
9.96
104.80
Nov 15
1555

9H
72.6

9.5

9.82
9.82
103.40
Nov 15
1700
Tensor on @ 1700 hr

10H
82.1

9.5

9.53
9.53
100.30
Nov 15
1755

11H
91.6

9.5

9.93
9.93
104.50
Nov 15
1855

12H
101.1

9.5

9.94
9.94
104.60
Nov 15
1950

13H
110.6

9.5

7.44
7.44
78.30
Nov 15
2055
Imploded top and bottom

14H
120.1

9.5

9.97
9.97
104.90
Nov 15
2150

15H
129.6

9.5

9.73
9.73
102.40
Nov 15
2250

16H
139.1

9.5

9.73
9.73
102.40
Nov 15
2350

17H
148.6

9.5

10.00
10.00
105.30
Nov 16
0105
Tensor out/in @ 2345 hr

18H
158.1

2.0

2.03
2.03
101.50
Nov 16
0205

19X
160.1

5.1

4.02
4.02
78.80
Nov 16
0340

20X
165.2

9.6

8.63
8.63
89.90
Nov 16
0445

21X
174.8

9.2

7.71
7.71
83.80
Nov 16
0545

22X
184.0

9.7

9.50
9.50
97.90
Nov 16
0640

23X
193.7

9.7

9.09
9.09
93.70
Nov 16
0735

24X
203.4

9.6

6.81
6.81
70.90
Nov 16
0830
Chert F/210–213 mbsf

25X
213.0

9.7

5.80
5.80
59.80
Nov 16
0950
Chert stringers

26X
222.7

9.3

4.03
4.03
43.30
Nov 16
1050

27X
232.0

9.6

0.29
0.29
3.00
Nov 16
1155

28X
241.6

9.1

4.25
4.25
46.70
Nov 16
1335

29X
250.7

1.0

0.13
0.10
10.00
Nov 16
1500

206-1256C-

1R
220.1

9.4

0.15
0.15
1.60
Nov 17
2230

2R
229.5

9.5

1.85
1.85
19.50
Nov 17
2340

3R
239.0

6.0

4.67
4.67
77.80
Nov 18
0035

4R
245.0

7.4

0.57
0.53
7.20
Nov 18
0220
Tag basalt @ 3897.2 m (251.8 mbsf), S/B out

5R
252.4

4.7

3.89
3.27
69.60
Nov 18
0805
Note: excessive torque @ 3901.5 m (256.1 mbsf), sheared pin on OS

6R
257.1

9.3

6.80
6.21
66.80
Nov 18
1630

7R
266.4

9.1

6.20
5.55
61.00
Nov 18
2340
Whirl-Pak, tracer

8R
275.5

9.2

7.44
7.04
76.50
Nov 19
1145

9R
284.7

9.2

10.07
10.07
109.50
Nov 19
1750

10R
293.9

9.4

7.08
7.03
74.80
Nov 20
0220

11R
303.3

9.5

10.24
10.22
107.60
Nov 20
1215
Whirl-Pak/tracer other: Section 8 only has a liner length. No curated section 8 exists!

12R
312.8

9.2

4.78
4.32
47.00
Nov 20
2125
AHC on

13R
322.0

9.1

0.16
0.16
1.80
Nov 21
0425

14R
331.1

9.2

0.00
0.00
0.00
Nov 21
1115
TD Hole 1256C: no recovery

206-1256D-

2R
276.1

2.0

1.41
1.44
72.00
Dec 7
0325

3R
278.1

7.0

4.61
4.48
64.00
Dec 7
0845

4R
285.1

4.8

5.31
5.29
110.20
Dec 7
1150

5R
289.9

4.8

4.61
4.58
95.40
Dec 7
1530

6R
294.7

9.2

9.27
9.39
102.10
Dec 7
2340

7R
303.9

9.4

8.57
8.34
88.70
Dec 8
0315

8R
313.3

9.5

8.40
8.15
85.80
Dec 8
0710

9R
322.8

4.6

6.03
5.98
130.00
Dec 8
1035

10R
327.4

4.5

4.86
4.80
106.70
Dec 8
1345

11R
331.9

9.3

6.34
6.37
68.50
Dec 8
1759

12R
341.2

9.1

10.28
10.38
114.10
Dec 9
0130

13R
350.3

9.2

3.83
3.23
35.10
Dec 9
0530

14R
359.5

4.7

3.18
2.77
58.90
Dec 9
0825

15R
364.2

4.7

3.81
3.09
65.70
Dec 9
1345

16R
368.9

4.6

1.25
1.01
22.00
Dec 9
1600
AHC on

17R
373.5

4.5

1.26
1.01
22.40
Dec 9
1830

18R
378.0

4.7

2.68
2.20
46.80
Dec 9
2140

19R
382.7

4.7

0.50
0.50
10.60
Dec 9
2359

20R
387.4

9.4

1.28
1.23
13.10
Dec 10
0420
Drlg Brk f/4035.2 m (389.8 mbsf)–4037.2 m (391.8 mbsf)

21R
396.8

9.2

2.57
2.10
22.80
Dec 10
840
TD bit 2 @ 49.6 hr

22R
406.0

4.3

5.48
4.88
113.50
Dec 11
1340

23R
410.3

9.2

2.32
1.98
21.50
Dec 11
1840

24R
419.5

9.3

3.32
2.50
26.90
Dec 12
10

25R
428.8

9.5

0.86
0.61
6.40
Dec 12
600
Note: high torque F/428.8 to 433 mbsf

26R
438.3

7.1

8.56
7.48
105.40
Dec 12
1530

27R
445.4

5.5

3.96
3.75
68.20
Dec 12
2105
Shot @ 2032 hr

28R
450.9

5.7

2.10
1.65
28.90
Dec 13
200

29R
456.6

4.8

1.94
1.50
31.20
Dec 13
455

30R
461.4

4.6

0.77
0.79
17.20
Dec 13
655

31R
466.0

9.2

1.55
1.30
14.10
Dec 13
1330

32R
475.2

5.8

4.83
4.38
75.50
Dec 13
2155

33R
481.0

3.4

3.62
3.27
96.20
Dec 14
810

34R
484.4

4.6

5.02
4.45
96.70
Dec 14
1615

35R
489.0

5.0

2.91
2.58
51.60
Dec 14
2145

36R
494.0

6.1

2.44
2.20
36.10
Dec 16
135

37R
500.1

4.2

5.68
5.15
122.60
Dec 16
920

38R
504.3

9.2

3.38
3.44
37.40
Dec 16
1925

39R
513.5

4.0

2.93
2.85
71.20
Dec 16
2355
Nonmagnetic core barrel

40R
517.5

7.3

1.15
0.96
13.20
Dec 17
645

41R
524.8

4.6

2.97
2.57
55.90
Dec 17
1210
Monel core barrel

42R
529.4

4.5

2.77
2.59
57.60
Dec 17
1815

43R
533.9

9.2

2.21
1.78
19.30
Dec 17
2320
Nonmagnetic core barrel

44R
543.1

9.4

2.77
2.47
26.30
Dec 18
545

45R
552.5

9.0

1.73
1.36
15.10
Dec 18
1330
Monel core barrel, two attempts to land core barrel

46R
561.5

9.5

3.68
3.35
35.30
Dec 18
2145

47R
571.0

6.0

2.95
2.53
42.20
Dec 19
2359
Monel core barrel

48R
577.0

5.1

2.35
2.22
43.50
Dec 20
425

49R
582.1

9.4

2.43
2.27
24.10
Dec 20
1130
Monel core barrel

50R
591.5

4.6

1.49
1.32
28.70
Dec 20
1435

51R
596.1

4.6

2.91
2.47
53.70
Dec 20
1730
Monel core barrel

52R
600.7

9.1

2.20
2.18
24.00
Dec 21
110

53R
609.8

8.3

3.70
3.70
44.60
Dec 21
1125
Monel core barrel

54R
618.1

9.3

4.30
4.05
43.50
Dec 21
2320

55R
627.4

9.2

2.40
2.70
29.30
Dec 22
710
Nonmagnetic core barrel

56R
636.6

9.2

4.69
4.32
47.00
Dec 22
1430

57R
645.8

9.2

5.92
5.45
59.20
Dec 22
2145
Nonmagnetic core barrel

58R
655.0

4.0

1.89
1.83
45.80
Dec 23
2245

59R
659.0

9.6

5.29
4.72
49.20
Dec 24
605
Nonmagnetic core barrel

60R
668.6

9.4

2.04
2.03
21.60
Dec 24
1145

61R
678.0

9.2

1.50
1.46
15.90
Dec 24
1545
Nonmagnetic core barrel

62R
687.2

9.3

1.33
1.10
11.80
Dec 24
2320

63R
696.5

4.6

1.58
1.60
34.80
Dec 25
400
Monel core barrel

64R
701.1

4.6

2.76
2.88
62.60
Dec 25
905

65R
705.7

4.7

3.86
3.90
83.00
Dec 25
1430

66R
710.4

4.4

0.93
0.88
20.00
Dec 25
2025

67R
714.8

4.7

4.22
4.13
87.90
Dec 26
240
Monel core barrel

68R
719.5

4.6

1.63
1.68
36.50
Dec 26
615

69R
724.1

4.6

1.25
1.10
23.90
Dec 26
945
Monel core barrel

70R
728.7

4.6

2.46
2.30
50.00
Dec 26
1440

71R
733.3

4.6

1.77
1.68
36.50
Dec 26
1900
Nonmagnetic core barrel

72R
737.9

4.5

2.45
2.39
53.10
Dec 27
10

73R
742.4

4.8

1.90
1.83
38.10
Dec 27
505
Monel core barrel

74R
747.2

4.8

2.46
2.40
50.00
Dec 27
1155

Core	Top (mbsf)	Cored (m)	Curated (m)	Recovered (m)	Recovery (%)	Date (2002)	Time (local)	Comment
206-1256A-
1H	0.0	2.3	2.37	2.37	103.00	15-Nov	0700

206-1256B-
1H	0.0	6.1	6.14	6.14	100.70	Nov 15	0835
2H	6.1	9.5	9.86	9.86	103.80	Nov 15	0935	Tensor on @ 0930 hr
3H	15.6	9.5	9.88	9.88	104.00	Nov 15	1030	Tensor on @ 0930 hr
4H	25.1	9.5	10.18	10.18	107.20	Nov 15	1155
5H	34.6	9.5	9.92	9.92	104.40	Nov 15	1235
6H	44.1	9.5	10.01	10.01	105.40	Nov 15	1405
7H	53.6	9.5	9.84	9.84	103.60	Nov 15	1500
8H	63.1	9.5	9.96	9.96	104.80	Nov 15	1555
9H	72.6	9.5	9.82	9.82	103.40	Nov 15	1700	Tensor on @ 1700 hr
10H	82.1	9.5	9.53	9.53	100.30	Nov 15	1755
11H	91.6	9.5	9.93	9.93	104.50	Nov 15	1855
12H	101.1	9.5	9.94	9.94	104.60	Nov 15	1950
13H	110.6	9.5	7.44	7.44	78.30	Nov 15	2055	Imploded top and bottom
14H	120.1	9.5	9.97	9.97	104.90	Nov 15	2150
15H	129.6	9.5	9.73	9.73	102.40	Nov 15	2250
16H	139.1	9.5	9.73	9.73	102.40	Nov 15	2350
17H	148.6	9.5	10.00	10.00	105.30	Nov 16	0105	Tensor out/in @ 2345 hr
18H	158.1	2.0	2.03	2.03	101.50	Nov 16	0205
19X	160.1	5.1	4.02	4.02	78.80	Nov 16	0340
20X	165.2	9.6	8.63	8.63	89.90	Nov 16	0445
21X	174.8	9.2	7.71	7.71	83.80	Nov 16	0545
22X	184.0	9.7	9.50	9.50	97.90	Nov 16	0640
23X	193.7	9.7	9.09	9.09	93.70	Nov 16	0735
24X	203.4	9.6	6.81	6.81	70.90	Nov 16	0830	Chert F/210–213 mbsf
25X	213.0	9.7	5.80	5.80	59.80	Nov 16	0950	Chert stringers
26X	222.7	9.3	4.03	4.03	43.30	Nov 16	1050
27X	232.0	9.6	0.29	0.29	3.00	Nov 16	1155
28X	241.6	9.1	4.25	4.25	46.70	Nov 16	1335
29X	250.7	1.0	0.13	0.10	10.00	Nov 16	1500

206-1256C-
1R	220.1	9.4	0.15	0.15	1.60	Nov 17	2230
2R	229.5	9.5	1.85	1.85	19.50	Nov 17	2340
3R	239.0	6.0	4.67	4.67	77.80	Nov 18	0035
4R	245.0	7.4	0.57	0.53	7.20	Nov 18	0220	Tag basalt @ 3897.2 m (251.8 mbsf), S/B out
5R	252.4	4.7	3.89	3.27	69.60	Nov 18	0805	Note: excessive torque @ 3901.5 m (256.1 mbsf), sheared pin on OS
6R	257.1	9.3	6.80	6.21	66.80	Nov 18	1630
7R	266.4	9.1	6.20	5.55	61.00	Nov 18	2340	Whirl-Pak, tracer
8R	275.5	9.2	7.44	7.04	76.50	Nov 19	1145
9R	284.7	9.2	10.07	10.07	109.50	Nov 19	1750
10R	293.9	9.4	7.08	7.03	74.80	Nov 20	0220
11R	303.3	9.5	10.24	10.22	107.60	Nov 20	1215	Whirl-Pak/tracer other: Section 8 only has a liner length. No curated section 8 exists!
12R	312.8	9.2	4.78	4.32	47.00	Nov 20	2125	AHC on
13R	322.0	9.1	0.16	0.16	1.80	Nov 21	0425
14R	331.1	9.2	0.00	0.00	0.00	Nov 21	1115	TD Hole 1256C: no recovery

206-1256D-
2R	276.1	2.0	1.41	1.44	72.00	Dec 7	0325
3R	278.1	7.0	4.61	4.48	64.00	Dec 7	0845
4R	285.1	4.8	5.31	5.29	110.20	Dec 7	1150
5R	289.9	4.8	4.61	4.58	95.40	Dec 7	1530
6R	294.7	9.2	9.27	9.39	102.10	Dec 7	2340
7R	303.9	9.4	8.57	8.34	88.70	Dec 8	0315
8R	313.3	9.5	8.40	8.15	85.80	Dec 8	0710
9R	322.8	4.6	6.03	5.98	130.00	Dec 8	1035
10R	327.4	4.5	4.86	4.80	106.70	Dec 8	1345
11R	331.9	9.3	6.34	6.37	68.50	Dec 8	1759
12R	341.2	9.1	10.28	10.38	114.10	Dec 9	0130
13R	350.3	9.2	3.83	3.23	35.10	Dec 9	0530
14R	359.5	4.7	3.18	2.77	58.90	Dec 9	0825
15R	364.2	4.7	3.81	3.09	65.70	Dec 9	1345
16R	368.9	4.6	1.25	1.01	22.00	Dec 9	1600	AHC on
17R	373.5	4.5	1.26	1.01	22.40	Dec 9	1830
18R	378.0	4.7	2.68	2.20	46.80	Dec 9	2140
19R	382.7	4.7	0.50	0.50	10.60	Dec 9	2359
20R	387.4	9.4	1.28	1.23	13.10	Dec 10	0420	Drlg Brk f/4035.2 m (389.8 mbsf)–4037.2 m (391.8 mbsf)
21R	396.8	9.2	2.57	2.10	22.80	Dec 10	840	TD bit 2 @ 49.6 hr
22R	406.0	4.3	5.48	4.88	113.50	Dec 11	1340
23R	410.3	9.2	2.32	1.98	21.50	Dec 11	1840
24R	419.5	9.3	3.32	2.50	26.90	Dec 12	10
25R	428.8	9.5	0.86	0.61	6.40	Dec 12	600	Note: high torque F/428.8 to 433 mbsf
26R	438.3	7.1	8.56	7.48	105.40	Dec 12	1530
27R	445.4	5.5	3.96	3.75	68.20	Dec 12	2105	Shot @ 2032 hr
28R	450.9	5.7	2.10	1.65	28.90	Dec 13	200
29R	456.6	4.8	1.94	1.50	31.20	Dec 13	455
30R	461.4	4.6	0.77	0.79	17.20	Dec 13	655
31R	466.0	9.2	1.55	1.30	14.10	Dec 13	1330
32R	475.2	5.8	4.83	4.38	75.50	Dec 13	2155
33R	481.0	3.4	3.62	3.27	96.20	Dec 14	810
34R	484.4	4.6	5.02	4.45	96.70	Dec 14	1615
35R	489.0	5.0	2.91	2.58	51.60	Dec 14	2145
36R	494.0	6.1	2.44	2.20	36.10	Dec 16	135
37R	500.1	4.2	5.68	5.15	122.60	Dec 16	920
38R	504.3	9.2	3.38	3.44	37.40	Dec 16	1925
39R	513.5	4.0	2.93	2.85	71.20	Dec 16	2355	Nonmagnetic core barrel
40R	517.5	7.3	1.15	0.96	13.20	Dec 17	645
41R	524.8	4.6	2.97	2.57	55.90	Dec 17	1210	Monel core barrel
42R	529.4	4.5	2.77	2.59	57.60	Dec 17	1815
43R	533.9	9.2	2.21	1.78	19.30	Dec 17	2320	Nonmagnetic core barrel
44R	543.1	9.4	2.77	2.47	26.30	Dec 18	545
45R	552.5	9.0	1.73	1.36	15.10	Dec 18	1330	Monel core barrel, two attempts to land core barrel
46R	561.5	9.5	3.68	3.35	35.30	Dec 18	2145
47R	571.0	6.0	2.95	2.53	42.20	Dec 19	2359	Monel core barrel
48R	577.0	5.1	2.35	2.22	43.50	Dec 20	425
49R	582.1	9.4	2.43	2.27	24.10	Dec 20	1130	Monel core barrel
50R	591.5	4.6	1.49	1.32	28.70	Dec 20	1435
51R	596.1	4.6	2.91	2.47	53.70	Dec 20	1730	Monel core barrel
52R	600.7	9.1	2.20	2.18	24.00	Dec 21	110
53R	609.8	8.3	3.70	3.70	44.60	Dec 21	1125	Monel core barrel
54R	618.1	9.3	4.30	4.05	43.50	Dec 21	2320
55R	627.4	9.2	2.40	2.70	29.30	Dec 22	710	Nonmagnetic core barrel
56R	636.6	9.2	4.69	4.32	47.00	Dec 22	1430
57R	645.8	9.2	5.92	5.45	59.20	Dec 22	2145	Nonmagnetic core barrel
58R	655.0	4.0	1.89	1.83	45.80	Dec 23	2245
59R	659.0	9.6	5.29	4.72	49.20	Dec 24	605	Nonmagnetic core barrel
60R	668.6	9.4	2.04	2.03	21.60	Dec 24	1145
61R	678.0	9.2	1.50	1.46	15.90	Dec 24	1545	Nonmagnetic core barrel
62R	687.2	9.3	1.33	1.10	11.80	Dec 24	2320
63R	696.5	4.6	1.58	1.60	34.80	Dec 25	400	Monel core barrel
64R	701.1	4.6	2.76	2.88	62.60	Dec 25	905
65R	705.7	4.7	3.86	3.90	83.00	Dec 25	1430
66R	710.4	4.4	0.93	0.88	20.00	Dec 25	2025
67R	714.8	4.7	4.22	4.13	87.90	Dec 26	240	Monel core barrel
68R	719.5	4.6	1.63	1.68	36.50	Dec 26	615
69R	724.1	4.6	1.25	1.10	23.90	Dec 26	945	Monel core barrel
70R	728.7	4.6	2.46	2.30	50.00	Dec 26	1440
71R	733.3	4.6	1.77	1.68	36.50	Dec 26	1900	Nonmagnetic core barrel
72R	737.9	4.5	2.45	2.39	53.10	Dec 27	10
73R	742.4	4.8	1.90	1.83	38.10	Dec 27	505	Monel core barrel
74R	747.2	4.8	2.46	2.40	50.00	Dec 27	1155

Notes: AHC = automatic heave compensation. TD = total depth.

Next Table | Table of Contents