Table 1.

Table 1. Measured and modeled concentrations of Cl^-, ²H, and estimated concentrations of hydrate for Site 996.

Core, section,
interval (cm) Depth
(mbsf) ²H
() Cl^-*
(mM) Cl^-**(mM) Hydrate
(vol%)

Pore water samples:

164-996A-

1H-1, 85-95
0.85
0.4
561
576
2.5

3X-1, 61-71
10.11
1.9
608
703
13.5

8H-1, 96-111
49.46
-1.6
952
977
2.5

8H-2, 0-12
49.61
-1.1
959
1026
6.6

8H-5, 19-34
52.12
0.0
933
1086
14.1

9H-1, 80-90
58.8
0.3
907
1070
15.2

9H-3, 87-102
61.55
2.2
840
1177
28.6

164-996D-

1H-1, 0-20
0.1
1.4
572
629
9.0

1H-1, 20-40
0.3
0.6
563
585
3.8

4H-2, 10-25
23.87
2.0
712
876
18.7

4H-7, 140-150
30.14
2.0
712
876
18.7

6H-2, 52-67
42.99
0.7
857
1018
15.8

6H-5, 28-43
45.49
3.3
739
1074
31.2

164-996E-

1H-3, 72-87
3.72
0.6
563
585
3.8

2H-4, 134-150
9.94
0.7
580
610
4.9

2H-6, 117-132
12.44
2.4
590
704
16.2

4H-3, 135-150
26.75
-1.0
834
854
2.3

4H-5, 135-150
29.05
-1.1
812
819
0.9

5H-4, 135-150
36.9
0.5
823
942
12.6

5H-6, 72-87
38.82
0.5
870
1022
14.9

6X-4, 135-150
47.86
-1.5
940
967
2.8

7H-3, 10-19
54.26
-2.0
970
973
0.3

Hydrate samples:

164-996B-

1H-3
2.1
10.4
248
612
57.7

1H-3
2.1
13.8
169
612
76.4

164-996C-

1H-CC
2.3
9.2
294
612
48.9

1H-CC
2.3
10.3
245
612
55.3

2H-CC
2.4
8.1
352
612
44.4

164-996D-

2X-CC
3.5
13.5
139
600
75.4

5X-CC
32.1
12.9
317
988
70.1

164-996E-

7H-CC
58.63
17.1
21
974
99.1

Core, section, interval (cm)	Depth (mbsf)	²H ()	Cl^-* (mM)	Cl^-**(mM)	Hydrate (vol%)
Pore water samples:
164-996A-
1H-1, 85-95	0.85	0.4	561	576	2.5
3X-1, 61-71	10.11	1.9	608	703	13.5
8H-1, 96-111	49.46	-1.6	952	977	2.5
8H-2, 0-12	49.61	-1.1	959	1026	6.6
8H-5, 19-34	52.12	0.0	933	1086	14.1
9H-1, 80-90	58.8	0.3	907	1070	15.2
9H-3, 87-102	61.55	2.2	840	1177	28.6
164-996D-
1H-1, 0-20	0.1	1.4	572	629	9.0
1H-1, 20-40	0.3	0.6	563	585	3.8
4H-2, 10-25	23.87	2.0	712	876	18.7
4H-7, 140-150	30.14	2.0	712	876	18.7
6H-2, 52-67	42.99	0.7	857	1018	15.8
6H-5, 28-43	45.49	3.3	739	1074	31.2
164-996E-
1H-3, 72-87	3.72	0.6	563	585	3.8
2H-4, 134-150	9.94	0.7	580	610	4.9
2H-6, 117-132	12.44	2.4	590	704	16.2
4H-3, 135-150	26.75	-1.0	834	854	2.3
4H-5, 135-150	29.05	-1.1	812	819	0.9
5H-4, 135-150	36.9	0.5	823	942	12.6
5H-6, 72-87	38.82	0.5	870	1022	14.9
6X-4, 135-150	47.86	-1.5	940	967	2.8
7H-3, 10-19	54.26	-2.0	970	973	0.3
Hydrate samples:
164-996B-
1H-3	2.1	10.4	248	612	57.7
1H-3	2.1	13.8	169	612	76.4
164-996C-
1H-CC	2.3	9.2	294	612	48.9
1H-CC	2.3	10.3	245	612	55.3
2H-CC	2.4	8.1	352	612	44.4
164-996D-
2X-CC	3.5	13.5	139	600	75.4
5X-CC	32.1	12.9	317	988	70.1
164-996E-
7H-CC	58.63	17.1	21	974	99.1

Note: *= measured, ** = simulated.