Table
T12. Pore fluid compositions, Hole 1175A.
Hole, core,
section,
interval (cm)
Depth (mbsf)
pH
(ISE)
Alk(T) (mM)
Sal
(R)
Cl (T) (mM)
SO4
(I) (mM)
Na (I) (mM)
Mg (I)
(mM)
Ca (I)
(mM)
K (I)
(mM)
H4SiO4
(S) (µM)
NH4
(S)
(mM)
190-1175A-
1H-1,
140-150
1.40
557.0
19.2
51.9
7.46
11.2
556
1.04
1H-2,
140-150
2.90
7.62
34.0
558.0
15.6
479
50.1
6.06
11.3
668
1H-3,
140-150
4.40
7.88
19.3
34.0
558.0
13.2
480
49.8
5.69
11.3
690
1.46
1H-4,
140-150
5.90
7.89
22.1
34.0
559.0
11.1
482
49.0
4.92
11.5
770
1H-5,
68-78
6.68
7.86
23.5
34.0
559.0
10.0
483
48.4
4.80
11.5
761
2H-1,
140-150
8.60
7.96
27.5
33.8
557.0
5.42
480
46.9
3.68
11.3
781
2.36
2H-2,
140-150
10.10
7.79
29.0
33.8
556.0
4.01
480
46.6
3.24
11.3
772
2H-3,
140-150
11.60
7.91
31.2
33.5
557.0
2.26
482
45.6
3.15
11.2
787
2H-4,
140-150
13.10
7.85
32.8
33.5
561.0
1.01
485
45.8
2.99
11.2
828
2H-5,
140-150
14.60
7.94
33.1
33.5
562.0
0.73
487
45.1
3.00
11.0
822
2H-6,
90-100
15.60
7.66
32.8
33.8
562.0
0.26
484
46.1
2.75
11.0
813
2.52
3H-1,
140-150
18.10
7.79
32.4
33.8
561.0
0.40
484
45.4
2.84
11.1
785
3H-3,
140-150
21.10
7.94
31.8
33.5
561.0
0.71
484
45.8
2.67
10.9
690
2.71
3H-4,
140-150
22.60
8.09
33.2
33.5
561.0
0.60
483
46.8
2.59
10.7
722
3H-6,
130-150
25.50
8.05
32.6
34.0
558.0
0.41
479
46.7
2.88
10.5
670
2.64
4H-2,
140-150
29.10
8.04
32.6
33.0
561.0
1.11
485
45.5
2.87
10.8
4H-4,
140-150
32.10
8.06
32.8
33.5
561.0
0.51
484
45.0
3.07
11.1
3.43
4H-6,
140-150
35.10
8.05
32.0
34.0
558.0
0.25
480
44.7
2.89
11.4
5H-2,
140-150
38.60
7.69
32.8
33.5
558.0
0.93
482
44.8
3.11
10.8
746
3.64
5H-5,
140-150
43.10
7.87
32.4
33.8
561.0
0.36
486
43.2
3.33
10.9
716
6H-4,
135-150
51.05
7.99
30.7
33.4
557.0
0.18
481
42.6
3.25
11.1
4.25
7H-3,
135-150
59.05
7.89
29.5
33.0
562.0
1.08
488
41.9
3.09
10.6
632
8H-3,
135-150
68.55
8.03
27.6
33.0
562.0
0.65
490
39.8
3.06
10.4
790
9H-3,
135-150
78.05
7.82
27.6
33.5
557.0
0.29
483
40.2
3.19
10.1
822
5.24
10H-2,
135-150
86.05
7.84
27.7
33.0
561.0
1.06
491
39.1
3.06
10.4
761
12H-4,
135-150
106.65
7.69
27.5
33.0
562.0
0.54
491
38.5
3.30
10.4
831
13H-4,
135-150
116.15
7.84
27.3
32.5
557.0
0.58
486
38.6
3.17
10.8
813
5.36
14H-5,
140-150
127.20
7.70
24.5
33.0
561.0
0.44
488
38.2
3.12
10.5
746
15H-4,
140-150
135.20
7.87
26.2
33.0
557.0
0.32
485
38.2
3.09
11.2
735
16H-4,
140-150
144.70
7.62
25.6
33.0
554.5
0.55
484
36.8
3.58
10.9
796
5.18
17H-4,
145-150
154.25
7.81
25.3
33.0
554.0
0.87
485
36.4
3.46
11.0
822
18H-4,
145-150
163.75
7.67
24.8
33.0
553.5
0.58
485
36.0
3.45
10.7
761
19H-4,
145-150
173.25
7.84
23.4
33.0
552.0
0.95
483
35.8
3.41
10.9
802
5.40
20H-4,
145-150
182.75
7.84
22.8
33.0
587.0
0.35
516
35.2
3.81
10.8
883
21H-4,
135-150
192.15
7.54
22.6
32.5
561.0
0.28
491
35.1
3.65
10.6
893
22H-4,
145-150
201.75
7.66
21.7
32.5
554.0
0.78
485
34.8
3.74
10.6
854
5.18
23X-4,
98-113
210.78
7.66
22.0
32.5
556.5
1.10
483
36.9
3.99
11.1
841
25X-3,
130-150
228.90
7.60
22.5
32.5
557.5
0.70
486
35.3
4.64
10.2
893
26X-4,
130-150
240.10
7.52
22.0
32.5
551.0
1.09
482
35.0
4.43
9.9
960
4.70
27X-4,
120-150
249.60
7.72
22.0
32.5
552.0
0.42
481
35.2
4.38
10.1
874
28X-5,
120-150
260.80
7.64
23.0
32.5
553.0
0.14
481
36.0
3.97
10.7
857
29X-5,
120-150
270.40
7.52
23.6
32.5
557.0
1.09
486
37.2
4.21
10.3
982
3.69
30X-2,
120-150
275.50
7.52
24.4
32.5
554.0
0.50
482
37.9
4.11
10.3
939
31X-4,
120-150
288.10
7.50
24.7
33.0
550.0
1.38
476
39.4
4.50
10.2
976
32X-3,
120-150
296.20
33.0
559.5
0.65
486
39.5
4.29
10.1
939
2.63
33X-2,
120-150
304.30
7.56
27.2
33.0
553.0
0.71
480
40.0
4.52
9.9
924
37X-4,
120-150
345.70
7.54
25.1
33.0
551.0
0.53
472
41.9
4.67
9.5
941
38X-2,
120-150
352.30
7.50
23.5
33.0
555.0
0.00
476
40.9
4.84
9.1
965
1.79
39X-2,
100-150
361.70
7.63
22.6
32.5
555.0
0.00
477
40.4
4.63
9.4
861
41X-2,
110-150
381.00
7.60
20.2
32.5
553.0
0.75
476
39.5
4.50
9.0
913
42X-2,
115-150
390.65
7.87
18.8
32.5
553.0
0.84
475
39.5
4.51
9.3
770
43X-2,
115-150
400.25
7.93
16.9
32.2
553.0
0.40
473
38.0
5.49
8.7
748
1.55
Note: ISE = ion selective electrode, Alk = alkalinity, T = titration, Sal = salinity, R = refractometry, I = ion, S = spectrophotometry.