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Table T6. Uncorrected pore fluid major element concentrations, Site U1413.

Core, section,
interval (cm)		 Depth
(mbsf)		 Volume
(mL)		 Salinity pH Alkalinity
(mM)		 SO4 IC
(mM)		 SO4 ICP
(mM)		 Cl IC
(mM)		 Cl titr.
(mM)		 Br
(mM)		 Na
(mM)		 K
(mM)		 Ca
(mM)		 Mg
(mM)		 NH4
(mM)
344-U1413A-
1H-2, 138–150 3.0 56 34 7.75 6.12 25.6 25.0 554 551 0.878 479 11.7 8.64 50.4 0.434
1H-4, 110–122 5.6 55 35 7.59 4.72 26.4 26.3 550 551 0.870 477 11.7 8.98 50.8 0.296
2H-2, 138–150 9.5 50 35 7.96 6.66 24.4 23.3 550 552 0.865 465 11.3 8.53 49.2 0.387
2H-5, 138–150 14.0 60 34.5 8.29 13.9 16.5 24.5 560 554 0.895 468 11.6 7.11 48.0 0.888
3H-2, 100–112 18.3 54 33 — — 0.05 1.8 553 — 0.927 447 10.8 2.94 41.8 2.63
3H-6, 140–152 24.4 55 33 7.72 30.3 0.00 0.1 552 552 0.988 453 10.5 2.85 48.9 5.40
4H-1, 136–151 27.0 52 32.5 7.84 32.7 0.05 0.3 552 549 1.02 466 12.2 2.25 44.9 6.33
4H-4, 137–152 31.3 60 33.5 7.71 36.9 — 0.2 — 552 — 456 11.8 2.35 45.5 7.08
5H-2, 135–150 37.9 56 33 7.72 35.4 0.05 0.2 553 550 1.12 451 11.5 2.04 45.6 7.55
5H-5, 135–150 42.2 54 33 7.93 35.8 0.05 0.2 553 552 1.14 446 11.6 1.63 44.1 7.87
6H-2, 137–152 46.7 41 33 7.8 33.8 0.56 0.7 552 551 1.17 441 10.6 1.79 44.5 7.26
6H-4, 135–150 49.7 38 33 8.28 29.2 0.10 0.4 552 554 1.19 451 12.7 1.16 39.8 8.11
8H-2, 131–151 63.4 32 32.5 7.65 28.4 0.05 0.2 548 550 1.25 438 10.0 2.12 40.9 7.11
8H-5, 136–156 67.9 — 32.5 7.94 27.4 0.00 0.2 550 555 1.26 433 10.2 2.14 40.7 7.07
9H-2, 132–154 72.8 37 32.5 7.88 28.9 0.36 0.5 564 553 1.31 453 11.4 2.29 42.3 7.61
9H-5, 133–155 77.2 72 32.5 7.84 29.3 0.00 0.0 549 552 1.29 456 11.1 2.40 43.7 7.56
10H-2, 130–152 82.2 40 33 7.9 30.7 0.00 0.1 550 553 1.30 449 11.2 2.38 43.4 7.72
10H-5, 131–153 86.7 41 33 7.83 32.2 0.00 0.2 552 553 1.32 456 11.1 2.61 46.2 7.46
11H-2, 129–151 91.7 5 33 7.78 33.7 0.05 0.0 552 555 1.33 456 11.0 2.68 47.9 7.51
11H-5, 130–152 96.1 37 33 7.86 32.7 0.05 0.1 553 553 1.34 456 10.9 2.60 48.5 7.12
12H-1, 128–150 99.2 31 33 7.82 33.0 0.05 0.0 552 554 1.34 456 11.2 2.17 43.4 7.08
12H-4, 109–131 103.3 31 33 7.83 32.2 0.00 0.2 551 556 1.34 457 10.5 2.91 49.9 6.93
13H-2, 130–152 108.3 44 33 7.82 29.0 0.77 0.8 552 554 1.34 455 10.4 2.97 48.4 6.70
13H-4, 130–152 111.3 45 33 7.82 29.4 0.10 0.2 552 556 1.37 447 10.4 3.53 47.2 6.94
14H-3, 128–150 117.4 39 33 7.75 26.9 0.00 0.1 552 556 1.37 444 10.3 3.05 45.8 6.49
15H-2, 130–152 121.4 40 33 7.72 25.1 0.00 0.2 556 554 1.38 450 9.8 3.32 47.0 6.20
16H-2, 126–150 127.1 39 32.5 7.79 23.0 0.00 0.1 554 557 1.39 462 10.2 3.50 47.2 6.09
17H-2, 80–102 131.7 38 32.5 7.82 21.8 0.00 0.1 554 558 1.40 472 10.3 3.61 48.0 6.04
17H-4, 128–150 134.6 34 33 7.82 21.3 0.00 0.1 555 559 1.40 471 10.0 3.66 48.1 5.83
18H-2, 130–152 138.4 42 32.5 7.93 19.3 0.00 0.1 556 559 1.41 468 10.0 3.64 46.6 5.81
19X-4, 97–122 145.9 38 32.5 7.8 18.5 1.43 0.2 556 556 1.42 456 9.0 3.83 46.4 5.19
20X-4, 65–90 154.6 16 32 7.8 14.0 0.66 0.7 551 — 1.40 468 8.9 4.02 44.6 4.72
20X-6, 109–134 157.2 11 31.5 — — 0.26 0.5 549 549 1.41 455 8.4 4.13 44.4 4.65
21X-3, 125–150 164.1 13 31.5 7.84 12.0 0.26 0.3 554 555 1.45 464 8.2 4.77 42.8 4.89
22X-1, 56–85 170.3 22 31.5 7.89 9.72 0.20 0.2 555 560 1.46 467 8.2 5.11 40.1 5.18
24X-1, 117–147 176.5 12 31.5 — — 0.31 0.4 552 550 1.48 457 7.3 5.80 39.3 5.23
24X-3, 63–93 178.5 19 31 7.89 8.98 0.15 0.0 553 553 1.50 440 6.7 5.75 37.6 5.33
25X-1, 48–84 179.9 30 31 8.03 8.48 0.15 0.2 549 551 1.50 455 7.0 6.05 38.6 5.47
26X-1, 105–140 183.1 12 31.5 7.99 8.16 0.00 0.2 551 552 1.52 463 7.0 6.19 37.8 5.78
344-U1413B-
1H-1, 140–150 1.4 — — 7.74 5.66 24.5 26.2 554 552 0.864 482 11.6 9.15 50.7 0.347
1H-2, 140–150 2.9 42 35 7.64 5.30 24.7 26.1 556 — 0.877 482 12.0 8.94 50.5 0.341
1H-3, 140–150 4.4 41 34.5 7.61 4.63 25.2 27.3 552 551 0.856 487 11.8 9.31 51.9 0.241
1H-4, 100–110 5.5 — — 7.66 4.41 25.0 26.9 550 — 0.857 477 11.6 9.18 51.0 0.225
1H-5, 60–70 6.2 25 35 7.9 4.65 25.0 27.5 551 555 0.853 492 12.0 9.39 52.5 0.244
2H-1, 140–150 8.0 — — 7.8 4.86 24.5 26.5 553 552 0.865 482 11.9 9.09 51.1 0.270
2H-2, 140–150 9.5 — — 7.92 6.33 23.0 24.9 554 — 0.865 484 11.8 8.81 51.3 0.357
2H-3, 140–150 11.0 49 34.5 7.95 8.16 21.1 23.2 551 555 0.870 484 11.7 8.47 50.8 0.440
2H-4, 140–150 12.5 52 34.5 8.15 9.81 19.7 20.6 560 — 0.887 475 11.9 7.84 49.3 0.524
2H-5, 140–150 14.0 46 33.5 7.87 12.5 16.3 17.1 552 557 0.868 471 11.6 7.17 48.3 0.673
2H-6, 110–115 15.2 — — 8.01 19.1 9.59 8.8 553 — 0.882 471 11.8 5.83 46.7 0.913
2H-6, 130–135 15.4 — — 7.95 22.7 5.51 5.3 552 — 0.883 482 11.9 5.41 46.8 1.04
2H-6, 140–150 15.5 38 33.5 8 24.3 2.97 3.7 556 — 0.897 474 11.6 4.99 45.4 1.03
2H-7, 10–15 15.7 — — 7.94 26.0 0.56 1.1 553 — 0.894 476 11.8 4.60 44.8 1.12
2H-7, 30–35 15.9 — — 7.96 26.4 0.15 0.2 553 — 0.885 468 11.4 4.36 44.8 1.16
2H-7, 50–55 16.1 — — 8.02 25.3 0.00 0.4 551 — 0.890 470 11.6 4.25 44.9 1.20
2H-7, 65–75 16.3 41 33.5 7.95 26.9 0.00 0.2 550 — 0.881 453 11.1 4.04 43.3 1.30
3H-1, 10–15 16.2 — — 8 24.4 0.00 0.4 555 556 0.903 464 11.7 3.66 43.7 1.82
3H-1, 30–35 16.4 — — 7.83 23.0 0.00 7.2 553 — 0.896 471 11.5 3.55 44.3 1.93
3H-2, 144–154 18.2 — — 7.9 24.6 0.00 — 551 — 0.912 — — — — 2.56
3H-3, 142–152 19.7 — — 7.88 26.5 0.00 0.1 550 — 0.929 461 11.2 2.31 42.8 3.47
3H-4, 138–148 21.2 — — 7.85 27.5 0.00 0.1 550 — 0.938 455 11.2 2.07 42.3 4.00
3H-5, 140–150 22.7 — — 7.95 26.8 0.00 0.1 546 548 0.953 452 11.5 1.90 40.8 4.63
3H-6, 140–150 24.2 — — 7.82 28.2 0.00 0.0 546   0.963 472 11.9 2.10 43.8 5.02
3H-7, 140–150 25.7 — — 7.84 29.5 0.00 0.2 547 548 0.969 466 11.9 2.09 43.6 5.50
3H-8, 80–90 26.6 — — 7.74 30.1 0.00 0.1 545 — 0.984 451 11.1 2.08 43.0 5.60
344-U1413C-
2R-2, 119–149 180.5 34 31 7.92 7.86 0.00 0.0 550 550 1.51 450 6.65 6.73 37.7 5.70
2R-5, 53–83 183.9 20 31 8.01 7.72 0.00 0.1 549 551 1.53 451 6.46 6.73 37.0 5.84
3R-1, 90–122 188.6 18 31 7.87 7.93 1.17 1.3 546 — 1.46 461 6.74 7.28 37.2 5.84
5R-1, 116–146 208.3 20 31 7.94 6.75 0.77 0.6 548 547 1.56 489 7.33 8.31 34.3 7.11
6R-3, 99–129 220.7 19 30.5 7.88 6.78 0.36 0.6 546 544 1.63 452 6.92 8.16 30.3 7.07
7R-2, 77–107 228.8 15 30.5 — — 1.12 1.2 541 540 1.60 450 6.57 8.89 31.0 6.96
7R-6, 101–131 234.5 10 30.5 7.98 6.12 0.20 0.2 545 544 1.69 460 6.57 9.38 31.1 6.94
8R-4, 87–117 241.4 21 30.5 8.05 5.85 0.51 0.5 549 549 1.71 454 6.74 9.41 29.5 7.11
10R-4, 116–150 260.7 19 30.5 — — 0.61 0.3 544 545 1.71 451 6.78 9.68 28.0 7.35
11R-1, 114–151 266.4 19 30 7.83 6.72 0.41 0.2 543 544 1.73 463 6.74 10.4 29.5 6.77
12R-5, 80–119 280.1 22 30 — — 0.20 0.7 541 545 1.76 446 6.81 9.80 27.8 7.15
13R-3, 93–128 288.4 13 30 — — 0.36 0.5 536 537 1.73 462 7.00 10.1 28.5 7.20
14R-4, 16–61 299.0 15 30.5 8 5.42 0.46 0.5 542 543 1.75 445 6.76 9.61 27.5 6.88
15R-2, 103–135 306.1 23 30.5 — — 0.71 0.9 540 542 1.72 501 7.75 10.8 30.6 6.93
16R-3, 114–150 317.8 15 30.5 — — 0.77 0.8 542 543 1.72 460 7.17 9.87 27.1 6.93
17R-4, 92–122 328.6 17 30.5 8.07 5.35 2.14 2.1 536 538 1.64 443 6.82 9.83 27.1 6.69
19R-5, 66–96 347.9 8 30 — — 0.66 0.7 532 534 1.68 446 7.12 9.78 24.2 6.77
20R-3, 80–110 355.8 8 30 — — 1.07 1.3 534 535 1.66 471 7.32 10.6 25.9 —
21R-4, 123–153 368.0 7 30.5 — — 0.92 1.0 541 543 1.69 466 7.24 10.6 24.5 6.19
22R-4, 89–119 377.4 9 30.5 — — 0.87 0.9 536 537 1.67 452 6.72 10.8 24.7 6.51
23R-3, 122–152 385.7 6 30.5 — — 1.07 1.1 538 539 1.65 492 7.68 12.0 25.2 6.83
24R-3, 112–142 395.3 13 30.5 — — 1.33 1.6 535 — 1.63 498 7.34 12.2 26.9 6.22
25R-4, 122–152 406.8 11 30.5 8.22 2.58 2.04 2.1 529 530 1.57 472 7.09 12.0 24.2 6.02
26R-3, 118–148 414.5 8 30 — — 1.17 1.0 534 535 1.59 444 6.31 11.8 22.7 6.00
27R-2, 120–150 423.1 13 30.5 — — 1.12 1.0 542 542 1.64 458 6.59 12.3 23.6 6.17
28R-3, 88–123 433.5 11 30 — — 0.61 0.4 — 530 — 442 6.00 12.6 23.6 5.37
29R-3, 100–135 443.5 13 30 8.17 2.69 0.77 0.9 535 533 1.60 465 6.43 12.7 24.1 5.60
30R-3, 96–131 453.1 12 30 — — 1.68 1.7 535 533 1.55 447 6.27 12.3 23.3 5.56
31R-4, 83–118 464.3 7 30 — — 1.07 1.3 524 523 1.52 446 5.96 12.9 23.5 5.07
32R-5, 66–101 475.1 10 30 — — 0.87 1.0 522 522 1.59 431 5.61 12.7 22.9 4.97
33R-5, 0–30 484.4 9 30 — — 1.12 1.1 530 533 1.56 431 5.68 12.9 22.4 5.13
34R-2, 87–122 490.8 5.5 30 — — 0.31 0.4 532 532 1.62 454 6.11 13.4 21.5 5.06
35R-3, 94–129 502.0 10 30 8.29 — 0.77 0.8 522 525 1.52 450 5.74 14.1 22.2 4.85
36R-5, 62–97 514.1 12 30 — — 0.36 0.5 520 527 1.21 485 6.04 15.7 24.2 4.48
37R-5, 61–96 523.6 14 30 — — 0.46 0.7 532 527 1.34 443 5.43 14.6 21.8 4.71
38R-4, 117–152 532.9 6 30.5 — — 0.56 0.9 543 542 1.57 448 5.39 14.6 22.1 4.56
39R-4, 116–151 542.3 17 30.5 — — 0.61 0.7 548 545 1.61 463 5.58 15.1 22.6 4.59
40R-6, 97–132 554.6 8 30 — — 0.51 0.5 530 534 1.55 456 5.36 14.8 22.1 4.11
41R-2, 116–151 559.0 11 30 8.45 2.66 1.12 1.0 544 541 1.56 446 5.26 15.1 23.0 —
42R-2, 56–91 568.1 12 30 — — 1.43 1.6 543 541 1.53 448 5.23 14.8 22.3 4.28
43R-2, 73–105 577.7 7.5 30 — — 1.33 1.4 540 539 1.52 462 5.74 14.7 20.9 4.70
Drill fluid     32 8 2.36 25.1 27.0 518 516 0.81 446 9.74 9.39 49.9 0.108

IC = ion chromatograph, ICP = inductively coupled plasma–atomic emission spectroscopy, titr. = titration, — = not measured.

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