Table 6. Description of PCS deployment at Site 997.								

		Pressure						
Core	Depth (mbsf)	Expected (psig)	Observed (psig)	Hydrostatic (%)	Cutting shoe	Core recovered (cm)	Manifold design	Total gas released (mL)

164-997A-								
18P	146.9	4297	4289	100	Push-in	0.42	PCS-M4	450
25P	202.4	4378	4500	103	Push-in	0.88	PCS-M4	7485
29P	231.3	4421	4621	105	Push-in	0	Sed. only	Not taken
33P	260.1	4463	4783	107	Push-in	0.00**	PCS-M4	305**
40P	317.7	4547	465	10	Push-in	0	PCS-M4	175
49P	394.9	4661	3666	79	Push-in	0.64	PCS-M4	7050
51P	404.5	4675	3987	85	Push-in	0.47	Sed. only	Not taken
55P	433.3	4717	750	16	Push-in	0.5	PCS-M4	6380

164-997B-								
6P	434.4	4718	0	0	Push-in	0.24	PCS-M4	Not taken
10P	462.2	4759	4460	94	Push-in	0.14	PCS-M4	5125
15P	501.8	4817	4485	93	Push-in	0.3	PCS-M4	3190
21P	549.9	4888	4578	94	Auger	0.94	PCS-M4	3455
25P	577.6	4929	0	0	Auger	0	PCS-M4	Not taken
29P*	606.5	4971	4834	97	(Auger)	0	PCS-M4	110
32P	635.3	5013	4750	95	Auger	0	PCS-M4	70
36P	664.1	5055	5122	101	Auger	0	PCS-M4	120
40P	693	5098	4947	97	Auger	0	PCS-M4	70
44P	721.8	5140	4808	94	Pilot bit	0	PCS-M4	80

Notes: The water depth at Site 997 is 2782 m. Expected pressure is the hydrostatic pressure assuming a pressure gradient of 1.467 psi/m. Observed pressure is that first recorded at the PCS sampling station.								
 Sed. only = PCS run used only for collection of sediment.  * = Core 164-997B-29P was deployed as blank (water) PCS run (see text). ** = reported volume of recovered core is too low or the total 								
volume of gas released is too high. (Auger) = Auger shoe was not applied.