Table 1.

Table 1. Porosity, particle diameter, ATP, organic carbon, calcium carbonate, and total nitrogen contents and C/N ratios (mole/mole) of sediments from Holes 994A and 994C.

Core, section, interval (cm) Depth (mbsf) Porosity Diameter* (µm) Diameter*** (µm) ATP
(pg g^-1) Organic carbon (wt%) CaCO₃(wt%) Total nitrogen****(wt%) Total nitrogen**(wt%) C/N

164-994A-

1H-1, 138-140
1.38
0.74
0.748
9.87
879
0.30
15.8
0.049
0.053
6.9

1H-2, 0-5
1.55
0.73
0.759
6.88
665
0.84
14.3
0.096
0.105
9.8

1H-2, 138-140
2.88
0.72
0.714
4.53
993
0.92
14.6
0.101
0.112
10.1

1H-3, 138-140
4.38
0.74
0.743
5.85
1128
0.42
18.4
0.067
0.070
7.2

1H-4, 138-140
5.88
0.71
0.746
6.64
356
0.58
19.1
0.080
0.079
8.5

1H-5, 138-140
7.38
0.67
0.838
13.16
2789
0.33
31.6
0.050
0.053
7.4

2H-1, 138-140
9.28
0.64
0.858
6.55
671
0.40
44.2
0.052
0.051
9.0

2H-2, 115-130
10.55
0.60
0.956
7.60
1741
0.28
57.2
0.043
0.044
7.5

2H-2, 138-140
10.78
0.59
0.878
7.82
6568
0.23
48.0
0.040
0.042
6.4

2H-3, 138-140
12.28
0.67
0.931
8.91
597
0.22
42.7
0.037
0.037
7.0

2H-3, 115-130
12.50
0.68
0.888
10.31
1747
0.44
46.4
0.054
0.061
9.0

2H-4, 115-130
13.55
0.66
0.902
13.97
2873
0.94
34.6
0.082
0.096
12.5

2H-4, 138-140
13.78
0.66
0.842
9.69
5452
0.76
28.6
0.085
0.089
10.2

2H-5, 0-5
13.90
0.66
0.824
9.56
1565
0.14
26.5
0.035
0.035
4.7

2H-5, 115-130
15.05
0.68
0.861
5.22
973
0.51
31.6
0.061
0.057
10.2

2H-5, 138-140
15.28
0.69
0.880
6.70
784
0.40
41.1
0.056
0.056
8.3

2H-6, 115-130
16.55
0.72
0.864
9.36
852
1.16
30.1
0.108
0.118
12.1

3H-1, 10-25
17.50
0.71
0.747
5.89
477
0.74
20.8
0.065
0.071
12.7

3H-1, 85-110
18.25
0.70
0.781
6.27
678
0.65
23.1
0.066
0.066
11.5

3H-1, 138-140
18.78
0.69
0.860
6.58
1661
0.62
25.8
0.072
0.068
10.3

3H-2, 0-5
18.90
0.68
0.840
7.10
1498
0.67
25.1
0.065
0.067
11.6

3H-2, 10-25
19.00
0.68
0.803
3.90
836
0.64
24.4
0.069
0.066
11.0

3H-2, 115-130
20.05
0.67
0.823
4.87
1019
0.39
19.8
0.055
0.046
9.1

3H-2, 138-140
20.28
0.67
0.822
5.85
560
0.47
21.6
0.065
0.055
9.1

3H-3, 10-25
20.50
0.66
0.775
4.69
2238
0.60
22.8
0.067
0.065
10.7

3H-3, 45-60
20.85
0.66
0.868
8.45
1363
0.67
23.8
0.071
0.075
10.7

3H-3, 80-90
21.20
0.66
0.802
6.91
5611
0.71
24.7
0.066
0.066
12.6

3H-3, 115-130
21.55
0.66
0.761
5.02
1116
0.46
26.1
0.054
0.055
9.9

3H-3, 138-140
21.78
0.65
0.790
5.12
527
0.75
19.4
0.055
0.055
15.9

3H-4, 0-5
21.90
0.65
0.785
3.99
1035
0.66
20.9
0.066
0.069
11.5

3H-4, 10-25
22.00
0.65
0.793
5.80
248
0.37
17.2
0.054
0.046
8.6

3H-4, 45-60
22.35
0.65
0.781
4.76
391
0.59
18.9
0.052
0.051
13.2

3H-4, 80-95
22.70
0.66
0.898
7.48
364
0.26
28.4
0.027
0.037
9.7

3H-4, 115-130
23.05
0.66
0.873
5.67
268
0.31
26.1
0.032
0.041
9.8

3H-4, 138-140
23.28
0.67
0.749
4.22
377
0.35
23.2
0.045
0.052
8.6

3H-5, 115-130
24.55
0.67
0.809
6.57
7054
0.74
49.0
0.088
0.080
10.3

3H-5, 138-140
24.78
0.67
0.906
7.92
232
0.25
40.1
0.051
0.050
5.8

3H-6, 10-25
25.00
0.67
0.868
5.80
382
0.50
44.2
0.074
0.072
8.1

3H-6, 45-60
25.35
0.67
0.831
10.88
5883
0.53
43.4
0.063
0.064
9.8

3H-6, 80-95
25.70
0.68
0.799
9.80
4570
0.83
31.8
0.105
0.103
9.3

3H-6, 115-130
26.05
0.68
0.746
8.14
484
0.87
32.1
0.103
0.110
9.6

3H-6, 138-140
26.28
0.68
0.754
4.46
353
0.72
37.4
0.090
0.094
9.1

4H-2, 135-140
28.84
0.71
0.832
5.97
4909
0.46
40.5
0.058
0.063
8.8

4H-3, 135-140
30.34
0.70
0.821
6.95
374
0.38
20.2
0.059
0.050
8.1

4H-4, 135-140
31.84
0.67
0.751
3.41
309
0.50
18.4
0.065
0.056
9.7

4H-5, 135-140
33.34
0.64
0.825
10.23
489
0.31
22.9
0.052
0.037
8.3

164-944C-

5H-1, 145-150
34.35
0.60
0.789
5.98
472
0.36
7.2
0.058
0.047
8.1

164-944A-

4H-6, 135-140
34.84
0.58
0.927
9.99
241
0.21
10.1
0.053
0.038
5.4

164-944C-

5H-2, 135-140
35.75
0.58
0.816
5.98
302
0.25
11.1
0.062
0.041
6.0

5H-3, 145-150
37.35
0.61
0.780
7.32
652
0.82
17.5
0.098
0.089
10.3

5H-4, 140-145
38.80
0.66
0.771
3.31
327
1.07
13.9
0.116
0.118
10.6

5H-5, 140-145
40.30
0.68
0.771
4.37
327
0.60
13.1
0.101
0.102
6.9

7H-3, 138-140
56.35
0.70
0.778
3.52
435
1.33
16.6
0.142
0.126
11.6

7H-4, 138-140
57.80
0.70
0.814
6.64
390
1.22
19.1
0.135
0.126
10.9

Core, section, interval (cm)	Depth (mbsf)	Porosity	Diameter* (µm)	Diameter*** (µm)	ATP (pg g^-1)	Organic carbon (wt%)	CaCO₃(wt%)	Total nitrogen****(wt%)	Total nitrogen**(wt%)	C/N
164-994A-
1H-1, 138-140	1.38	0.74	0.748	9.87	879	0.30	15.8	0.049	0.053	6.9
1H-2, 0-5	1.55	0.73	0.759	6.88	665	0.84	14.3	0.096	0.105	9.8
1H-2, 138-140	2.88	0.72	0.714	4.53	993	0.92	14.6	0.101	0.112	10.1
1H-3, 138-140	4.38	0.74	0.743	5.85	1128	0.42	18.4	0.067	0.070	7.2
1H-4, 138-140	5.88	0.71	0.746	6.64	356	0.58	19.1	0.080	0.079	8.5
1H-5, 138-140	7.38	0.67	0.838	13.16	2789	0.33	31.6	0.050	0.053	7.4
2H-1, 138-140	9.28	0.64	0.858	6.55	671	0.40	44.2	0.052	0.051	9.0
2H-2, 115-130	10.55	0.60	0.956	7.60	1741	0.28	57.2	0.043	0.044	7.5
2H-2, 138-140	10.78	0.59	0.878	7.82	6568	0.23	48.0	0.040	0.042	6.4
2H-3, 138-140	12.28	0.67	0.931	8.91	597	0.22	42.7	0.037	0.037	7.0
2H-3, 115-130	12.50	0.68	0.888	10.31	1747	0.44	46.4	0.054	0.061	9.0
2H-4, 115-130	13.55	0.66	0.902	13.97	2873	0.94	34.6	0.082	0.096	12.5
2H-4, 138-140	13.78	0.66	0.842	9.69	5452	0.76	28.6	0.085	0.089	10.2
2H-5, 0-5	13.90	0.66	0.824	9.56	1565	0.14	26.5	0.035	0.035	4.7
2H-5, 115-130	15.05	0.68	0.861	5.22	973	0.51	31.6	0.061	0.057	10.2
2H-5, 138-140	15.28	0.69	0.880	6.70	784	0.40	41.1	0.056	0.056	8.3
2H-6, 115-130	16.55	0.72	0.864	9.36	852	1.16	30.1	0.108	0.118	12.1
3H-1, 10-25	17.50	0.71	0.747	5.89	477	0.74	20.8	0.065	0.071	12.7
3H-1, 85-110	18.25	0.70	0.781	6.27	678	0.65	23.1	0.066	0.066	11.5
3H-1, 138-140	18.78	0.69	0.860	6.58	1661	0.62	25.8	0.072	0.068	10.3
3H-2, 0-5	18.90	0.68	0.840	7.10	1498	0.67	25.1	0.065	0.067	11.6
3H-2, 10-25	19.00	0.68	0.803	3.90	836	0.64	24.4	0.069	0.066	11.0
3H-2, 115-130	20.05	0.67	0.823	4.87	1019	0.39	19.8	0.055	0.046	9.1
3H-2, 138-140	20.28	0.67	0.822	5.85	560	0.47	21.6	0.065	0.055	9.1
3H-3, 10-25	20.50	0.66	0.775	4.69	2238	0.60	22.8	0.067	0.065	10.7
3H-3, 45-60	20.85	0.66	0.868	8.45	1363	0.67	23.8	0.071	0.075	10.7
3H-3, 80-90	21.20	0.66	0.802	6.91	5611	0.71	24.7	0.066	0.066	12.6
3H-3, 115-130	21.55	0.66	0.761	5.02	1116	0.46	26.1	0.054	0.055	9.9
3H-3, 138-140	21.78	0.65	0.790	5.12	527	0.75	19.4	0.055	0.055	15.9
3H-4, 0-5	21.90	0.65	0.785	3.99	1035	0.66	20.9	0.066	0.069	11.5
3H-4, 10-25	22.00	0.65	0.793	5.80	248	0.37	17.2	0.054	0.046	8.6
3H-4, 45-60	22.35	0.65	0.781	4.76	391	0.59	18.9	0.052	0.051	13.2
3H-4, 80-95	22.70	0.66	0.898	7.48	364	0.26	28.4	0.027	0.037	9.7
3H-4, 115-130	23.05	0.66	0.873	5.67	268	0.31	26.1	0.032	0.041	9.8
3H-4, 138-140	23.28	0.67	0.749	4.22	377	0.35	23.2	0.045	0.052	8.6
3H-5, 115-130	24.55	0.67	0.809	6.57	7054	0.74	49.0	0.088	0.080	10.3
3H-5, 138-140	24.78	0.67	0.906	7.92	232	0.25	40.1	0.051	0.050	5.8
3H-6, 10-25	25.00	0.67	0.868	5.80	382	0.50	44.2	0.074	0.072	8.1
3H-6, 45-60	25.35	0.67	0.831	10.88	5883	0.53	43.4	0.063	0.064	9.8
3H-6, 80-95	25.70	0.68	0.799	9.80	4570	0.83	31.8	0.105	0.103	9.3
3H-6, 115-130	26.05	0.68	0.746	8.14	484	0.87	32.1	0.103	0.110	9.6
3H-6, 138-140	26.28	0.68	0.754	4.46	353	0.72	37.4	0.090	0.094	9.1
4H-2, 135-140	28.84	0.71	0.832	5.97	4909	0.46	40.5	0.058	0.063	8.8
4H-3, 135-140	30.34	0.70	0.821	6.95	374	0.38	20.2	0.059	0.050	8.1
4H-4, 135-140	31.84	0.67	0.751	3.41	309	0.50	18.4	0.065	0.056	9.7
4H-5, 135-140	33.34	0.64	0.825	10.23	489	0.31	22.9	0.052	0.037	8.3
164-944C-
5H-1, 145-150	34.35	0.60	0.789	5.98	472	0.36	7.2	0.058	0.047	8.1
164-944A-
4H-6, 135-140	34.84	0.58	0.927	9.99	241	0.21	10.1	0.053	0.038	5.4
164-944C-
5H-2, 135-140	35.75	0.58	0.816	5.98	302	0.25	11.1	0.062	0.041	6.0
5H-3, 145-150	37.35	0.61	0.780	7.32	652	0.82	17.5	0.098	0.089	10.3
5H-4, 140-145	38.80	0.66	0.771	3.31	327	1.07	13.9	0.116	0.118	10.6
5H-5, 140-145	40.30	0.68	0.771	4.37	327	0.60	13.1	0.101	0.102	6.9
7H-3, 138-140	56.35	0.70	0.778	3.52	435	1.33	16.6	0.142	0.126	11.6
7H-4, 138-140	57.80	0.70	0.814	6.64	390	1.22	19.1	0.135	0.126	10.9

Notes: * = number-averaged diameter .^***= volume-averaged diameter , d_i is the mean diameter of size class i with n_i number of particles. **** = measured on acid-washed sediments and corrected for the loss of CaCO₃. ** = measured directly on freeze-dried sediment.