Table 12. Interstitial water composition for Hole 1084A.
Core, section,
interval (cm)
Depth
(mbsf)
pH
Alkalinity
(mM)
Salinity
Cl– (titr)
(mM)
Cl– (IC)
(mM)
SO42–
(mM)
Na+
(mM)
Mg2+
(mM)
Ca2+
(mM)
K+
(mM)
H4SiO4
(µM)
NH4+
(mM)
PO43–
(µM)
Sr2+
(µM)
175-1084A-
1H-1, 140-150 1.40 7.48 4.068 35.5 553 589 29.27 472 55.22 10.76 11.86 466 0.34 8 93
2H-2, 140-150 5.90 8.02 56.721 36.0 553 563 0.05 476 56.09 5.12 11.32 740 5.98 155 110
2H-5, 140-150 10.40 7.14
37.0 548 593 0.00 406 61.00 4.32 11.39 762 8.56 254 126
3H-3, 140-150 16.90 7.85 91.901 38.5 544 596 0.07 488 63.94 3.94 12.73 818 13.80 341 128
4H-3, 140-150 26.40 7.72 114.024 40.0 541 581 0.00 493 70.18 4.11 13.23 840 15.60 435 124
5H-3, 130-140 35.80 7.45 123.262 40.5 538 575 0.88 496 72.36 4.19 13.82 808 19.86 546 123
6H-3, 130-140 45.20 7.30 136.298 41.0 540 567 0.38 507 74.27 4.11 13.70 901 23.75 534 128
7H-4, 135-145 55.88 7.64 138.974 41.0 540 556 0.00 513 73.01 2.74 14.29 835 27.94 435 111
8H-3, 130-140 64.30 8.29 152.985 41.0 536 572 0.00 511 78.96 3.08 14.19 823 30.64 482 126
9H-3, 130-140 73.80 7.52 154.244 42.0 537 579 0.00 523 74.44 2.27 14.64 808 35.85 417 102
10H-5, 140-150 86.40 7.43 160.224 42.0 535 549 0.00 530 72.53 2.63 14.70 850 36.21 441 113
11H-4, 140-150 93.07 8.21 171.667 42.5 537 578 0.00 537 75.38 2.86 14.66 845 38.42 540 122
12H-3, 140-150 101.16 7.45 162.526 42.5 537 579 0.00 540 68.71 3.15 15.35 765 42.44 499 128
15H-3, 140-150 130.90 7.45 155.389 41.5 537 585 0.00 543 63.62 2.41 16.68 855 47.95 400 111
19X-2, 140-150 155.40 7.63 162.109 42.0 532 589 0.40 555 59.92 2.46 14.94 959 49.03 376 147
23X-2, 118-128 193.88 7.85 166.144 41.5 531 578 0.00 549 62.75 3.41 15.91 995 50.40 423 160
26X-1, 140-150 221.50 7.92 159.546 41.5 540 581 0.00 556 58.79 4.54 16.87 1003 49.81 295 187
29X-3, 140-150 253.30 7.95 144.675 40.5 540 565 0.00 556 52.25 4.02 15.78 1010 48.55 207 205
32X-3, 140-150 281.64 7.21 131.575 39.0 538 570 0.00 554 45.47 4.53 15.92 1117 45.01 172 228
35X-3, 140-150 310.91 7.97 115.721 38.0 541 552 0.00 550 41.33 4.90 14.90 1066 43.22 148 246
38X-3, 140-150 340.00 7.96 102.146 38.0 542 551 0.00 548 35.96 4.84 14.70 1180 41.54 123 254
41X-3, 140-150 368.80 7.03 94.875 36.5 544 546 0.00 552 31.23 5.35 14.06 1328 39.26 112 291
44X-3, 140-150 397.70 7.16 77.983 36.0 544 553 0.03 536 30.33 6.03 13.80 1350 32.67 61 264
47X-4, 140-150 427.05 7.95 75.788 35.5 547 550 0.06 543 26.74 6.52 13.58 1413 34.16 47 312
50X-4, 140-150 457.10 6.84 63.928 35.0 548 551 0.00 540 23.63 5.85 13.24 1440 33.86 36 330
53X-3, 140-150 483.19 6.29 57.204 35.0 549 557 0.11 535 23.14 6.51 12.38 1316 31.01 24 337
56X-2, 140-150 511.60 7.01 48.215 35.0 553 568 0.00 533 21.59 6.64 12.31 1273 29.90 15 365
59X-2, 140-150 540.60 7.95
34.0 549 548 0.11 483 20.28 7.34 11.06 1263 26.85 10 401
62X-4, 140-150 571.30 6.84 38.290 34.0 556 560 0.00 528 19.13 8.37 10.65 1328 24.42 10 453
65X-3, 140-150 599.90 6.83 28.067 33.5 559 564 0.20 525 18.41 8.10 9.84 1387 22.63 10 464

Notes: Cl– (titr) = analyzed by titration and Cl– (IC) = analyzed by ion chromatography. Empty cells = not analyzed.