Table 1. Description of PCS deployments retrieved at pressure.
 
Core Depth
(mbsf)
Recovered
pressure**
(psi)
Total gas
volume
(mL)
Core
recovered
(cm)

164-991B-






1P

10.0

2550

Not taken***

0

164-994C-






9P

70.9

1500

Not taken***

23

18P

147.9

3260

Not taken***

0

27P

222.5

3657

Not taken***

7

36P

299.4

4438

Not taken***

23

45P

376.5

4988

Not taken***

0

48P

395.6

4900

Not taken***

15

53P

434.1

5030

Not taken***

15

60P

491.9

5166

Not taken***

28

66P

540.1

5205

Not taken***

22

70P

568.9

4266

720****

20

164-995A-






0P*

-73.0

2760

140****

0

9P

68.2

4126

Not taken***

100

18P

136.7

3176

555****

70

27P

223.9

4045

4215

100

36P

301.3

4740

1430****

75

45P

378.6

4635

4370

58

48P

397.8

4712

860*****

23

52P*

423.7

4892

85

0

52P

426.7

4788

2365

18

60P

494.1

4238

1310

9

70P

589.2

3680

285

3

164-995B-






7P

308.5

2769

2330****

93

10P

320.5

3284

980

65

164-996A-






7P

47.5

3326

5415

20

164-996D-






7P

51.2

2998

8100

0*******

164-996E-






8P

61.3

946

575

0*******

18P

146.9

4290

450

42

164-997A-






25P

202.4

4501

7485

88

29P

231.3

4621

Not taken******

0

33P

317.7

4783

290

0********

49P

394.9

3660

7050

64

51P

404.5

3987

Not taken******

47

55P

433.3

780

6380

50

164-997B-






10P

462.2

4460

5125

14

15P

501.8

4485

3190

30

21P

549.9

4578

3455

94

29P*

606.5

4832

110

0

32P

635.3

4755

70****

0

36P

664.1

5122

120

0

40P

693.0

4944

70

0

44P

721.8

4808

80

0

Notes: mbsf = meters below seafloor; ** = some pressures are different than those reported by Paull, Matsumoto, Wallace, et al. (1996). The reason is twofold: pressure changes rapidly over the first minute, and certain pressures were recorded by more than one individual. *** = the total volume of gas was not determined because of manifold problems. **** = the total volume of gas is a minimum because the PCS was not equilibrated. * = cores designed to collect water without sediment. ***** = total volume is a minimum because a gas aliquot was vented before recording. ****** = the total volume of gas was not determined because of immediate PCS opening. ******* = a small volume of hydrate and sediment likely existed in the PCS prior to tool opening. ********= a small volume of sediment likely existed in the PCS prior to tool opening.