Table 11. Interstitial water composition for Hole 1082A.
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+
(µM)
PO43–
(µM)
Sr2+
(µM)
175-1082A-
1H-1, 140-150 1.40 7.54 2.016 35.0 549 549 29.00 468 53.43 10.85 12.22 430 221 5 91
1H-2, 140-150 2.90 7.82 3.507 35.0 551 545 28.04 470 53.06 11.09 12.52 489 381 6 92
1H-3, 140-150 4.40 7.75 4.587 35.5 553 551 27.60 476 52.19 10.12 11.97 716 578 9 91
1H-4, 140-150 5.90 7.89 6.246 35.0 553 550 25.67 471 53.59 10.47 11.96 654 776 14 91
1H-5, 153-163 7.53 8.04
35.0 551 553 23.33
52.52 9.50 12.45 732 1,210 23 90
2H-1, 140-150 9.20 8.19 11.556 35.0 554 552 21.29 473 52.74 8.55 12.49 879 1,530 31 91
2H-2, 140-150 10.70 8.14 12.853 35.0 553 555 19.13 472 52.19 7.91 12.30 709 1,605 36 91
2H-3, 130-140 12.10 8.14 16.849 35.0 554 555 17.29 474 52.52 7.40 12.17 938 1,890 42 93
2H-4, 130-140 13.50 8.32 20.342 35.0 555 554 14.45 479 50.37 6.69 11.39 872 2,105 47 93
2H-5, 130-140 14.90 8.25 24.587 35.0 556 553 11.91 491 46.59 4.94 10.70 853 2,283 53 96
2H-6, 130-140 16.30 8.45 25.999 35.0 557 552 8.69 488 46.39 4.49 10.90 938 2,712 59 98
3H-1, 125-140 18.55 8.40 32.239 35.0 559 551 4.10 485 47.73 4.02 10.68 867 3,090 72 105
3H-2, 125-140 19.95 8.34 37.008 35.0 558 553 1.76 490 46.13 2.96 10.79 872 3,519 73 106
3H-3, 125-140 21.35 8.12 36.216 35.0 558 550 0.72 487 45.44 3.15 11.00 919 4,424 93 113
3H-4, 125-140 22.75 7.35 40.825 35.0 559 550 0.13 493 45.34 2.84 11.03 976 4,733 88 116
3H-5, 125-140 24.15 8.34 43.852 35.0 561 555 0.23 492 47.86 2.98 11.14 959 4,710 89 120
3H-6, 125-140 25.55 8.51
35.0 559 552 0.00
46.06 3.16 11.53 1016 5,971 92 120
4H-1, 125-140 28.05 7.35 45.156 35.0 559 542 0.15 493 46.64 3.28 11.42 1061 6,519 86 125
4H-2, 125-140 29.45 8.15 46.793 35.0 559 552 0.13 491 49.09 2.91 11.32 1004 6,257 90 125
4H-3, 125-140 30.85 7.97 48.302 35.0 555 554 0.00 492 46.61 3.39 11.67 1103 7,114 89 126
4H-4, 125-140 32.25 7.88 43.509 35.0 556 551 0.00 489 45.96 3.02 12.09 1096 7,852 87 125
4H-5, 125-140 33.65 7.96 47.269 35.0 555 553 0.00 494 45.41 2.75 12.27 1061 8,448 82 123
4H-6, 125-140 35.05 7.94 48.064 35.0 556 551 0.00 495 45.80 2.60 11.92 1092 8,400 89 124
5H-1, 125-140 37.55 7.55 43.423 35.0 558 552 1.31 496 44.68 3.22 11.53 1075 8,590 90 99
5H-2, 125-140 38.95 8.23 45.763 35.0 558 550 0.66 496 45.45 2.97 11.86 1137 9,733 88 114
5H-3, 125-140 40.35 7.91 48.316 35.0 556 552 0.93 500 44.41 2.61 12.43 1144 11,210 90 116
5H-4, 125-140 41.75 7.46 47.784 35.0 557 554 0.00 498 44.76 2.75 12.34 1174 10,781 98 120
5H-5, 125-140 43.15 7.35 39.002 35.5 557 553 0.06 485 46.25 2.89 12.23 1075 11,352 95 122
5H-6, 125-140 44.55 8.15 55.135 35.5 557 552 0.13 501 45.94 3.10 12.85 1163 12,733 102 125
6H-1, 125-140 47.05 7.96 55.255 35.5 558 554 0.00 502 45.83 3.40 12.85 1115 12,281 119 126
6H-2, 125-140 48.45 7.94 54.050 35.5 553 552 0.00 492 47.57 3.57 12.97 1125 12,019 116 125
6H-3, 125-140 49.85 8.29 55.272 35.5 549 551 0.00 493 45.89 3.07 13.50 1111 13,829 115 119
6H-4, 125-140 51.25 7.91 57.647 35.5 545 531 0.00 489 47.44 2.93 13.31 1139 13,948 129 125
6H-5, 125-140 52.65 7.32 61.405 35.5 551 552 0.00 498 47.55 3.26 13.37 1122 14,281 131 124
6H-6, 125-140 54.05 7.23 59.400 35.5 551 551 0.00 497 46.86 3.42 13.60 1167 14,210 137 129
7H-3, 135-150 59.65 7.60 68.916 36.0 552 566 0.33 502 49.33 3.68 13.19 1115 14,948 146 131
8H-4, 135-150 69.36 7.15
36.5 551 555 0.00
49.93 3.70 12.77 1049 16,448 161 142
9H-3, 115-130 78.45 7.62 72.381 36.5 553 554 0.01 508 48.47 3.53 13.26 1066 18,614 155 145
10H-4, 115-130 88.39 7.46 74.318 36.5 552 549 0.00 510 47.89 3.74 12.71 1025 17,733 151 153
11H-3, 120-135 97.50 7.02 72.443 36.5 550 548 0.30 513 44.23 3.95 13.62 1089 18,590 145 154
12H-4, 120-135 107.04 7.86 69.061 36.0 549 546 0.00 506 45.22 4.07 13.48 1103 21,400 147 164
15X-2, 135-150 131.07 7.28 75.106 35.5 547 550 0.03 518 40.49 4.66 13.78 1217 23,995 124 183
18X-2, 135-150 160.10 7.38 75.592 36.0 547 548 0.02 521 39.06 4.86 14.12 1217 24,829 106 197
21X-3, 135-150 189.77 7.56 72.590 36.0 550 553 0.08 526 36.13 5.27 13.99 1212 25,567 103 211
24X-3, 135-150 219.61 6.97 71.262 36.0 549 549 0.00 525 35.98 5.32 12.97 1255 23,138 109 228
27X-3, 135-150 248.75 7.89 71.935 36.0 553 556 0.06 530 35.25 5.89 13.34 1286 25,281 87 244
30X-3, 135-150 277.65 7.86 61.543 35.5 559 555 1.56 528 35.56 5.70 13.39 1271 24,210 66 208
33X-3, 139-154 306.49 7.89 61.730 35.5 563 565 0.09 539 31.01 5.57 13.18 1399 25,567 53 286
37X-3, 135-150 334.04 7.91 55.398 35.5 564 574 0.04 534 29.88 6.18 13.74 1323 24,305 36 304
40X-5, 135-150 365.04 7.86 50.650 35.5 565 565 0.00 536 26.89 6.40 12.95 1501 24,019 25 344
43X-3, 135-150 392.34 7.87 39.724 35.0 569 571 0.00 537 23.89 5.75 12.43 1290 22,400 11 352
46X-2, 135-150 420.55 7.21 35.876 35.0 572 575 0.08 534 23.97 7.05 11.52 1321 20,924 8 405
50X-4, 135-150 461.61 7.02 31.369 34.5 578 584 0.15 535 23.51 8.50 10.62 1222 18,043 5 482
53X-3, 135-150 489.05 7.20
34.0 585 592 0.00
23.97 7.82 10.39 1401 16,995 6 448
56X-4, 135-150 518.78 6.96 24.010 35.0 589 601 0.00 543 21.07 8.90 9.31 1470 27,257 4 574
60X-4, 135-150 557.59 6.96 19.971 35.0 595 601 0.12 539 24.29 9.83 7.90 1231 25,424 4 580
63X-4, 135-150 586.15 6.95 16.788 35.0 598 607 0.00 536 24.54 11.12 7.33 1189 23,852 3 626

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