Table
T9. Interstitial water geochemistry, Site 1118.
Core,
section,
interval (cm)Depth
(mbsf)pH
Alkalinity
(mM)Salinity
Cl
(T)
(mM)Cl
(IC)
(mM)SO4
(mM)Na
(mM)K
(mM)Mg
(mM)Ca
(mM)Ca/Mg
Li
(µM)NH4
(µM)Sr
(µM)SiO2
(µM)
180-1118A-
6R-4,
140-150
257.81
8.36
13.059
32.0
561
561
0.5
471
11.1
34.9
2.6
0.07
13
2822
53
349
8R-4,
140-150
278.00
8.36
10.503
32.0
562
566
0.3
472
11.7
35.5
3.0
0.08
15
2719
53
409
10R-2,
140-150
294.30
8.29
9.380
32.0
560
566
0.0
467
12.1
36.5
3.6
0.10
19
2539
57
446
12R-3,
111-121
314.33
8.37
8.526
32.0
560
568
0.9
462
12.4
36.5
4.2
0.11
22
2469
65
433
14R-4,
131-141
335.10
8.26
8.175
32.0
567
564
0.0
460
11.2
37.9
5.4
0.14
24
2119
75
454
16R-5,
91-101
355.92
8.36
4.644
32.0
570
592
0.5
479
10.9
38.4
7.3
0.19
25
2101
72
352
18R-2,
128-137
370.98
8.36
3.650
32.0
565
564
0.0
450
9.5
37.8
9.5
0.25
25
1925
77
433
20R-6,
134-146
395.75
8.41
1.943
32.0
568
573
0.0
446
7.6
38.1
14.4
0.38
29
1834
77
311
22R-5,
112-123
413.05
8.29
1.352
32.0
568
572
0.0
446
6.9
37.0
17.2
0.47
33
1840
74
178
24R-1,
134-146
426.94
8.56
1.356
34.0
568
571
0.3
442
6.6
37.3
20.3
0.54
38
1788
82
193
26R-3,
110-119
448.90
8.42
1.448
33.0
571
576
0.6
444
6.9
36.8
25.0
0.68
32
1586
76
403
28R-4,
107-117
469.36
8.58
2.188
33.0
574
573
0.6
437
6.6
38.1
23.6
0.62
35
1449
75
454
30R-2,
132-142
486.03
8.47
1.287
33.0
571
579
0.4
436
5.6
38.3
24.9
0.65
40
1532
74
283
32R-2,
131-141
505.29
8.51
1.304
33.0
573
583
0.6
434
5.0
37.8
26.1
0.69
49
1479
76
264
34R-3,
116-131
525.67
8.60
0.925
33.0
574
582
0.4
434
4.5
38.0
25.7
0.68
55
1375
79
182
36R-2,
135-145
543.54
8.29
0.992
33.0
576
585
0.5
434
4.1
39.4
24.6
0.62
59
1529
83
217
39R-1,
138-150
571.38
8.54
1.146
33.0
578
589
0.9
442
4.6
39.2
21.5
0.55
61
1743
89
150
42R-4,
98-110
603.55
8.52
1.336
33.0
577
592
0.6
446
5.0
37.6
18.8
0.50
72
1971
109
125
45R-6,
92-102
634.56
8.56
2.540
32.5
573
589
1.2
457
5.8
34.4
15.4
0.45
86
2051
123
234
48R-3,
112-122
660.41
8.32
2.283
32.0
567
582
1.1
456
7.2
30.7
15.2
0.49
107
1999
167
298
51R-1,
74-89
686.04
8.31
2.502
32.0
564
585
0.7
466
9.4
29.1
12.7
0.44
91
2030
218
526
55R-1,
72-87
724.82
8.25
2.794
32.0
562
577
5.3
473
11.5
28.8
11.4
0.40
111
2034
290
659
58R-4,
135-150
758.16
8.28
2.385
32.5
567
585
8.9
474
12.4
27.2
12.5
0.46
126
2047
333
352
61R-1,
113-128
783.03
8.37
6.260
34.0
563
576
11.7
481
12.3
27.5
15.4
0.56
136
2012
417
871
64R-1,
9-21
810.79
8.13
4.180
34.0
552
574
13.1
478
12.4
25.3
18.5
0.73
149
1995
526
822
67R-2,
135-150
842.24
8.32
1.954
34.0
572
576
12.0
481
10.1
24.1
22.0
0.91
148
1886
631
523
Note: Cl (T) = chloride by titration, Cl (IC) = chloride by ion chromatography.