Table T13. Pore fluid composition, Hole 1177A.

Hole, core, section,
interval (cm)
Depth (mbsf)
pH (ISE)
Alk (T)
(mM)
Sal (R)
Cl (T)
(mM)
SO4 (I) (mM)
Na (I)
(mM)
Mg (I)
(mM)
Mg (T) (mM)
Ca (I)
(mM)
Ca (T) (mM)
K (I)
(mM)
H4SiO4 (S) (µM)
NH4 (S)
(µM)
190-1177A-













1R-4, 135-150 306.05 7.55 18.6 32.0 555.0 0.3 482 33.0 32.8 7.72 8.3 8.10 1009 2252
2R-2, 135-150 312.05 7.54 19.3 32.5 554.0 0.3 481 32.9 32.8 8.15 8.6 8.06 972
3R-2, 130-150 321.70 7.69 18.8 32.5 553.5 0.1 480 32.6 32.6 8.49 8.9 7.81 970 1455
4R-4, 130-150 334.30

32.5 553.0 0.1 480 32.3 34.9 8.88 6.4 8.24

5R-1, 38-74 338.48 7.72 20.6 32.5 554.0 0.0 482 31.9 32.1 8.63 9.0 8.16 901 1674
6R-1, 70-100 348.40 7.54 17.7 32.5 554.0 0.5 482 32.0 34.8 8.85 6.0 7.75 929
7R-4, 125-150 363.05 7.65 18.0 32.0 555.0 0.4 484 31.0 31.8 9.10 8.9 7.47 910 1157
8R-2, 0-32 368.50 7.86 18.0 32.0 556.0 0.2 484 30.5 32.4 9.31 8.4 7.77 845
9R-3, 120-150 380.80 7.56 17.0 32.0 556.0 0.7 485 30.4 30.9 9.76 9.6 7.16 951 898
10R-1, 26-54 386.36 7.62 16.9 33.0 557.0 0.5 486 29.8 31.3 9.73 9.1 7.22 858
11R-1, 109-119 396.79 7.74 16.1 32.0 557.0 1.1 486 30.1 31.0 9.52 9.4 7.18 824 778
11R-1, 135-150 397.05

32.0 557.5 0.5 487 29.0 31.6 9.29 8.1 7.33

11R-4, 135-150 401.55

32.0 558.0 0.6 490 29.5
9.49
6.39

12R-1, 59-88 405.89 7.76 14.9 32.0 559.0 0.5 489 29.3 30.3 9.62 9.2 6.53 705
13R-4, 115-150 420.55

31.0 545.0 2.2
33.5 34.4 10.26 9.8 4.24 441 400
14R-4, 130-150 430.30

31.0 546.0 3.5
33.7 34.2 9.50 10.0 4.08 359
15R-3, 115-150 438.35

32.0 546.0 5.6
35.3 36.2 10.38 10.8 4.12
659
16R-1, 0-48 443.90 7.90 7.0 32.5 547.0 9.0 472 36.7 37.6 10.05 10.3 4.11 247
17R-1, 120-150 454.70 8.10 7.7 33.0 552.0 14.1 481 40.6 39.5 11.02 11.5 4.20 206
19R-4, 120-150 478.50

33.0 534.0 18.6 455 46.5 47.1 12.36 12.9 3.03
689
20R-1, 110-150 483.50 7.57 7.5 34.0 553.0 22.2 485 44.6 44.9 12.60 12.8 4.25 314
23R-2, 0-24 512.53

34.5 554.0 25.9 484 48.2 48.1 15.05 14.7 3.09 266 598
24R-4, 86-120 526.06

33.5 536.0 25.0
47.1
16.87
2.28 290
25R-6, 0-30 537.90

33.5 536.0 25.0 461 46.7 47.1 17.51 17.6 2.28
458
26R-1, 95-125 541.05 8.01 7.1 34.0 550.0 27.0 484 45.0 46.3 16.63 15.4 3.11 227
27R-1, 10-40 549.80 8.00 6.0 34.5 549.0 26.0 476 47.1 47.0 16.81 16.9 2.59
548
29R-1, 120-150 570.10

33.0 526.0 24.3 445 48.0 48.5 18.62 18.0 1.98
430
30R-4, 120-150 584.20

32.5 524.0 24.4 448 45.4 46.1 18.17 17.9 2.02 307
31R-1, 0-13 588.20

33.5 525.0 25.0 448 47.6 47.2 17.98 17.9 2.20

33R-2, 78-110 609.78

35.5 524.0 24.9 441 50.8 51.0 16.95 17.1 2.25
383
35R-1, 22-52 626.92 7.71 5.4 35.5 559.0 28.7 488 48.1 47.2 18.04 17.5 3.56 230 548
36R-2, 0-47 637.80 7.73 6.0 34.5 558.5 27.1 487 43.5 46.3 19.03 17.8 3.41
582
37R-1, 0-50 645.90

33.5 541.0 24.7 462 44.3 46.8 19.98 18.4 2.99 231 564
38R-1, 0-20 655.50

35.0 559.0 25.8 493 38.6 37.1 20.20 19.8 3.82
843
39R-1, 120-150 666.40

31.5 509.0 22.8 437 38.1 40.7 20.04 19.4 2.85 286 608
40R-1, 0-30 674.80

34.5 558.5 26.2 492 39.6 40.4 19.32 19.5 4.47 335 950
41R-1, 0-30 684.40 7.74 5.9 35.0 532.0 24.9 457 43.9 43.6 19.39 19.3 3.74

42R-1, 121-150 695.21

32.5 525.5


33.8
17.4

502
43R-2, 120-150 706.40

32.5 527.0 20.4 453 37.8 38.8 19.06 19.3 4.07

44R-1, 0-30 713.30

31.5 514.5 18.4 455 35.2 31.1 18.20 17.8 4.02 344 506
45R-2, 99-126 725.39

31.5 514.5 9.1 450 26.5 24.4 17.98 17.7 4.57

46R-1, 125-150 733.75

30.5 507.0 7.1 443 25.0 24.3 17.11 15.7 4.17
458
47R-3, 125-150 746.35

29.0 520.0 1.2
21.7
16.80
4.30

48R-4, 120-150 757.40

30.0 526.0 0.6 455 20.4 20.1 16.49 16.2 5.42
536
49R-3, 120-150 765.50

26.5 468.0 0.3
18.3
14.69
4.74
381
50R-3, 0-35 773.98 8.14 6.8 32.0 557.0 0.5 489 19.0 16.3 17.46 16.3 9.77 746 665
51R-1, 135-150 781.95 7.88 8.0 32.0 559.0 0.7 491 19.3 16.1 17.30 17.3 9.63

51R-2, 134-150 783.44 7.93 7.8 32.2 570.0 0.7 483 19.0 25.3 17.76 17.3 10.02
693
52R-1, 130-141 791.60

32.0 566.0 2.1
19.7
16.74
10.63
693
52R-2, 0-17 791.80

30.7 548.0 0.5
19.0
17.13
7.95 869
53R-3, 120-150 804.10

28.5 522.0 0.5
19.2
16.41
5.82
500
54R-2, 0-20 811.00 8.10 7.4 32.0 567.0 1.4 500 18.9 17.2 16.00 15.3 6.39 776
54R-2, 20-45 811.20

30.0 528.0 1.1
19.2
15.69
10.08
580
55R-1, 120-150 820.40 8.21 3.5 30.0 535.0 0.6 461 19.9 16.0 15.70 18.2 6.84
508
56R-1, 0-30 828.80 7.82 4.6 31.0 554.0 2.1 486 21.3 18.2 16.63 16.7 7.02 443

Note: ISE = ion selective electrode, Alk = alkalinity, T = titration, Sal = salinity, I = ion, S = spectrophotometry.