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Table T4. Concentrations of solutes corrected for drill-fluid contamination in interstitial waters, Site U1326.

Core, section,
interval (cm)
Depth
(mbsf)
Volume
(mL)
pH Alkalinity
(mM)
Salinity Cl
(mM)
SO4
(mM)
PO4
(µM)
NH4
(mM)
H4SiO4
(µM)
Cations (mM) Mg/Ca Trace elements (µM)
Na K Mg Ca Sr Li B Ba
311-U1326C-
1H-1, 65–80 0.7 60 7.98 6.0 33.8 559.0 21.4 7.2 0.3 385.3 436.8 11.1 46.8 8.4 5.6 77.9 14.8 567.1 0.0
1H-1, 135–150 1.4 62 8.19 13.1 33.8 562.5 13.1 23.0 0.4 531.2 428.9 11.0 46.6 5.9 7.9 61.1 12.4 492.0 0.0
1H-2, 65–80 2.2 53 8.19 19.8 32.5 567.4 3.4 29.7 0.5 693.6 444.5 10.8 43.1 4.5 9.6 56.6 9.1 376.3 0.3
1H-2, 135–150 2.9 67 8.11 23.1 32.5 566.9 0.0 34.7 0.7 751.5 428.4 10.1 40.0 4.4 9.0 71.3 7.3 511.1 6.7
1H-3, 60–72 3.7 44 8.21 19.2 32.2 566.4 0.0 57.2 0.9 748.8 425.3 10.3 38.0 3.5 10.9 50.4 5.4 294.4 11.1
2H-1, 60–75 4.6 36 8.17 14.9 32.5 566.4 7.6 38.8 0.5 709.6 423.8 10.2 39.8 4.9 8.1 73.7 8.8 499.3 3.7
2H-1, 135–150 5.3 50 8.05 19.2 32.2 566.9 0.3 66.3 1.0 739.4 433.1 9.5 41.4 3.9 10.6 73.3 2.6 504.6 18.6
2H-2, 65–80 6.1 54 8.02 19.1 32.0 566.9 0.1 71.3 1.1 732.6 415.9 9.3 42.2 4.0 10.4 77.0 1.5 453.8 20.9
2H-2, 135–150 6.8 50 7.97 19.0 32.8 567.9 0.0 81.3 1.3 606.2 422.9 9.1 42.3 4.4 9.6 78.1 0.0 471.7 31.0
2H-3, 60–75 7.6 54 7.97 18.5 32.5 564.9 0.0 71.3 1.5 628.0 416.5 8.9 33.7 4.0 8.4 75.2 0.7 444.8 25.3
2H-3, 135–150 8.3 53 7.99 19.1 32.5 566.4 0.0 77.2 1.5 738.3 425.2 8.9 39.3 3.5 11.3 79.2 0.3 481.9 19.8
2H-4, 65–80 9.1 58 8.11 19.5 32.2 564.9 0.0 73.0 1.8 647.7 388.0 8.9 37.3 3.7 10.0 76.0 0.0 470.1 29.1
2H-4, 135–150 9.8 44 8.00 19.7 32.5 566.9 0.0 71.3 1.9 768.8 381.1 8.4 39.5 3.7 10.8 75.9 1.5 483.5 22.5
2H-5, 135–150 11.3 46 7.98 18.8 32.5 564.9 0.0 40.5 1.9 649.4 414.3 9.4 29.3 4.3 6.8 79.4 0.4 466.6 31.7
2H-6, 135–150 12.8 48 7.84 18.4 33.0 565.4 0.0 34.7 2.0 710.9 439.1 8.4 37.9 4.9 7.8 77.5 1.2 423.9 31.5
3H-2, 135–150 16.3 44 7.75 18.6 33.2 565.9 0.0 22.2 2.6 703.5 404.8 8.2 40.9 4.9 8.3 71.9 2.4 436.7 34.3
3H-4, 135–150 19.3 50 7.80 17.8 33.2 566.9 0.0 21.3 2.9 638.6 396.9 8.3 43.7 5.5 7.9 75.2 3.1 414.5 34.4
4H-2, 130–150 25.8 38 8.03 19.7 33.2 566.9 0.0 14.7 2.9 271.4 401.0 7.9 39.5 5.2 7.6 83.2 0.0 395.1 20.6
5X-2, 117–142* 33.2
5X-5, 0–35* 36.2
6X-2, 125–150 42.9 18 8.02 8.0 32.0 570.7 0.0 3.9 2.6 311.5 412.9 6.9 32.1 6.7 4.8 82.0 0.0 414.2 11.9
6X-4, 83–96 44.9 2 4.6 90.1 0.0 3.7 0.4
6X-4, 83–96 44.9 3 31.7 556.5 0.0 1.2 2.3
6X-4, 83–96 44.9 7 15.1 273.1 0.0 1.5 179.9 186.1 2.7 11.1 3.4 3.2 29.2 0.0 128.3 6.9
7X-1, 93–133 50.8 9 7.99 4.7 31.5 571.6 0.0 3.0 2.4 219.9 420.7 6.3 33.7 9.0 3.7 86.2 0.0 425.2 14.2
7X-3, 74–101 53.4 7 9.4 572.3 0.0 2.2 0.9 316.1 405.9 5.6 30.6 9.9 3.1 93.0 0.0 302.6 16.4
7X-3, 74–101 53.4 8.5 32.0 212.1 0.0 1.2 1.9
9X-2, 0–25 70.7 34 8.24 2.7 29.2 565.0 0.0 1.4 1.9 187.0 413.8 4.6 20.0 18.8 1.1 92.1 0.0 408.3 16.3
9X-3, 66–91 72.9 23 8.17 2.7 32.0 570.5 0.0 1.2 1.8 173.8 432.8 5.7 23.6 15.2 1.6 91.5 0.0 399.4 15.0
10X-2, 0–30 80.4 7 32.1 570.0 0.0 1.2 1.8 363.9 413.4 5.4 25.8 17.2 1.5 87.8 0.0 407.6 14.9
12P-1, 3–14 83.8 16 11.4 438.9 0.0
12P-1, 14–24 83.9 8 27.8 503.3 0.0
311-U1326D-
2X-2, 128–150 91.3 23.0 8.10 6.3 32.0 564.9 0.0 4.5 2.5 238.2 421.0 5.2 33.5 8.3 4.0 89.9 3.4 274.3 15.6
2X-5, 104–144 95.6 30.0 7.94 9.0 32.2 570.0 0.0 6.2 2.7 248.0 416.1 5.5 32.4 8.4 3.9 91.5 3.0 279.1 16.0
3X-4, 61–90 103.4 4.5 32.1 571.0 0.0 4.8 146.2 411.1 6.8 33.3 6.0 5.5 77.0 5.4 177.7 18.6
3X-4, 90–119 103.6 2.0 20.4 359.2 0.0 3.1
3X-4, 90–119 103.6 17.0 32.1 567.9 0.0 6.2 4.0 196.4 418.1 6.4 36.7 5.6 6.5 80.8 6.1 226.4 18.9
4X-3, 40–106 111.4 29.0 8.23 14.0 31.5 553.0 0.0 8.5 4.9 301.1 398.1 5.1 33.5 4.0 8.4 77.2 0.0 199.7 21.5
4X-5, 126–146 114.5 14.0 20.2 327.3 0.0 5.0 3.3 190.6 256.1 3.0 19.5 2.6 7.6 42.2 0.0 110.0 11.6
5X-3, 102–150 121.3 9.0 33.1 571.3 0.0 10.1 6.2 329.3 451.6 7.3 36.6 4.8 7.7 79.8 1.0 217.1 19.9
5X-4, 115–150 122.9 17.0 7.97 17.1 33.7 574.7 0.0 9.7 6.0 321.2 394.6 6.2 31.8 4.8 6.6 80.3 3.2 238.4 18.2
6X-3, 100–113 131.1 8.0 16.8 304.2 0.0 7.1 3.4 242.6 224.2 3.0 17.3 3.3 5.3 40.9 0.0 140.0 9.4
6X-4, 90–132 132.2 23.0 8.14 17.2 32.0 564.9 0.0 12.0 6.7 452.6 429.8 7.1 34.4 5.7 6.1 80.0 3.1 248.0 18.7
7X-1, 73–96 137.4 5.0 25.1 426.1 0.0 10.8 6.0
7X-3, 0–50 139.0 28.0 8.04 17.0 33.4 573.5 0.0 11.0 7.2 461.6 425.4 6.8 33.3 6.1 5.5 85.5 5.3 256.2 22.4
8X-2, 36–86 148.4 25.0 33.7 577.5 0.0 9.8 7.8 583.1 432.2 6.9 33.3 7.5 4.5 87.3 22.7 237.0 29.1
8X-2, 86–96 148.7 3.0 23.1 371.0 0.0 7.2
9X-1, 84–134 157.0 31.0 33.4 578.5 0.0 12.4 8.1 867.4 433.9 6.5 30.5 7.9 3.9 83.8 25.6 264.6 29.7
9X-4, 35–48 158.5 2.0
19.1
452.4
0.0
5.5
429.6
322.3
5.2
19.6
5.1 3.8 58.4 19.1
136.4
21.7
9X-4, 35–48 158.5 12.0
8.21
12.3 26.2
294.1
0.0 4.0
7.5
10X-2, 97–142 168.3 37.0
7.79
14.7 33.8
582.1
0.0 7.1
7.5
763.7
425.3
6.2
30.2
8.0 3.8 91.8 25.2
246.7
19.7
10X-6, 0–66 172.4 34.0
8.05
11.9 33.8
516.4
0.0 3.7
7.7
498.1
432.2
6.8
28.6
8.2 3.5 92.8 23.9
187.4
21.3
10X-6, 0–66 172.4 12.5
29.9
581.8
0.0
8.0
287.6
229.3
3.8
14.8
4.1 3.6 76.2 22.2
153.0
21.4
11X-1, 38–49 175.6 2.5
26.4
441.5
0.0 2.9
7.4
11X-1, 38–49 175.6 15.0
26.2
434.5
0.0 3.0
7.7
433.2
318.5
4.7
19.6
5.6 3.5 68.7 21.5
134.4
13.2
11X-4, 100–150 179.9 18.5
33.8
580.8
0.0 5.2
7.5
708.1
416.5
6.0
28.2
8.2 3.5 96.0 22.8
241.8
26.0
12X-1, 75–125 185.8 25.0
7.85
12.1 33.5
579.8
0.0 6.8
7.1
731.9
404.2
5.6
29.4
7.9 3.7 97.1 18.7
245.1
24.3
12X-3, 100–150 188.8 15.0
31.8
536.3
0.0 2.8
7.5
400.0
380.4
5.6
27.3
7.0 3.9 92.5 27.5
179.7
25.7
12X-3, 100–150 188.8 42.0
7.97
11.3 32.5
560.0
0.0 3.5
7.5
583.8
384.5
5.9
24.2
7.3 3.3 95.3 18.6
228.9
25.7
13X-1, 100–110 195.5 9.0
31.7
555.4
0.0 3.5
6.4
584.2
407.3
5.9
29.0
7.4 3.9 90.5 13.8
215.8
24.7
13X-1, 100–110 195.5 2.0
30.8
525.7
0.0
9.6
13X-4, 60–112 198.9 46.0
8.07
9.8 32.4
576.9
0.0 1.8
7.4
328.9
479.0
7.7
20.1
7.0 2.9 95.2 23.8
198.7
21.9
14X-3, 58–73 206.9 3.5
29.2
515.0
0.0
6.3
14X-3, 58–73 206.9 18.0
31.8
528.1
0.0 1.9
6.7
448.2
371.5
4.9
26.1
6.4 4.1 89.0 15.8
218.2
21.8
14X-5, 0–50 208.8 16.0
33.7
593.3
0.0 4.2
8.3
755.0
418.6
4.7
24.4
7.2 3.4 103.0 9.4
145.9
29.2
15X-3, 100–150 217.6 22.5
8.06
9.4 33.0
580.2
0.0 2.6
7.0
395.9
416.4
5.8
30.8
7.8 4.0 98.6 8.0
231.7
23.9
15X-5, 50–100 220.1 23.0
32.8
571.0
0.0 2.6
6.7
430.6
434.2
5.6
30.0
7.6 3.9 105.8 8.0
215.6
21.8
16X-3, 0–50 226.6 8.0
33.0
579.7
0.0 2.6
6.9
258.7
425.2
6.3
30.8
7.8 4.0 104.4 9.1
180.3
27.7
16X-5, 0–52 229.2 26.0
7.95
9.2 33.7
578.6
0.0 2.6
7.1
266.2
21.8
0.9
107.0 10.4
204.9
28.9
17X-3, 0–100 236.4 21.0
33.7
580.7
0.0 2.6
7.1
306.9
417.8
6.0
29.3
8.6 3.4 110.2 16.7
219.7
31.7
18X-3, 0–90 245.1 1.5
7.85
10.6 11.8
151.5
0.0 2.0
8.4
492.9
407.4
5.2
22.0
9.4 2.3 115.0 30.7
206.2
44.0
18X-3, 109–120 245.8 22.0
33.7
582.2
0.0
3.8
19X-2, 0–83 254.0 4.0
19.8
311.2
0.0
5.9
19X-2, 0–83 254.0 24.0
7.82
9.9 33.5
578.7
0.0 3.4
7.2
639.5
473.0
6.8
31.7
11.4 2.8 111.3 36.2
245.5
40.1
20X-2, 33–45 263.7 15.0
31.9
556.3
0.0
7.0
20X-4, 50–150 266.0 22.0
33.5
583.6
0.0 1.8
6.6
409.3
408.3
5.6
27.0
10.7 2.5 111.4 33.4
195.4
49.5
20X-6, 0–100 268.5 30.0
33.3
584.6
0.0 1.8
7.0
201.1
401.4
6.1
25.2
10.1 2.5 113.0 34.3
162.3
43.4

Notes: Corrections based on dissolved sulfate concentrations assuming zero sulfate concentration below the sulfate/methane interface, which at this site occurs in the uppermost ~2.5 m. * = no interstitial water squeezed because of poor quality of sample. — = no data.

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