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Table T4. Interstitial water chemistry, Hole U1378B.

Core, section,
interval (cm) 		Depth
(mbsf) 		Volume
(mL) 		Salinity Alkalinity
(mM) 		pH Cl
(mM) 		SO4 (mM) NH4
(mM) 		Ca
(mM) 		K
(mM)
Mg (mM) 		Na
(mM)
IC ICP
334-U1378B-                          
1H-1, 138–150 1.38 50 35 8.75 7.61 557 20.70 21.25 0.67 7.38 10.80 48.64 453
1H-2, 138–150 2.88 50 33 11.10 7.53 556 15.98 16.39 0.84 5.42 10.69 47.65 448
1H-3, 138–150 4.38 50 32.5 12.43 7.64 557 13.94 14.01 0.97 4.41 10.91 47.64 451
1H-4, 46–58 4.96 50 32 12.89 7.65 557 12.09 13.23 1.02 4.22 11.14 48.08 453
2H-1, 138–150 6.68 50 32 15.02 7.69 557 9.65 10.54 1.06 4.19 10.75 46.88 438
2H-2, 138–150 8.18 50 32 17.47 7.68 555 7.49 8.26 1.06 4.06 10.34 44.10 419
2H-3, 138–150 9.68 50 32 21.08 7.68 554 4.93 5.98 1.11 4.16 9.97 43.29 415
2H-4, 138–150 11.18 50 32 28.19 7.65 554 1.74 2.03 1.24 4.34 10.66 45.42 440
2H-5, 138–150 12.68 50 32 30.31 7.64 554 ND 0.85 1.63 4.31 10.20 45.69 437
2H-6, 138–150 14.18 50 32 31.13 7.69 553 ND 0.79 1.76 4.02 9.45 42.68 412
2H-7, 54–66 14.84 50 32 31.84 7.63 553 ND 0.69 2.21 3.93 9.52 43.05 417
3H-1, 138–150 16.18 — 32 32.07 7.62 549 ND 0.91 2.51 3.37 9.25 40.45 397
3H-2, 138–150 17.68 — 32 33.94 7.70 548 ND 1.19 2.81 3.50 9.82 43.62 423
3H-3, 138–150 19.18 60 32 35.68 7.72 548 ND 0.51 3.56 3.40 10.32 44.50 435
3H-4, 138–150 20.68 50 32 36.36 7.64 547 ND 0.53 3.73 3.20 10.00 44.43 431
3H-5, 138–150 22.18 50 32 36.16 7.77 546 ND 0.61 4.25 3.02 10.50 43.74 428
3H-6, 133–145 23.63 54 32 36.85 7.71 546 ND 0.53 4.26 2.77 9.42 40.57 397
3H-7, 58–70 24.38 34 32 36.26 7.70 0 ND 0.50 4.43 3.02 10.54 43.78 434
4H-3, 138–150 27.79 44 32 33.43 7.66 546 ND 0.73 4.59 2.54 10.37 42.74 429
4H-6, 138–150 32.29 40 30.5 27.56 7.76 546 ND 0.52 4.33 1.99 10.81 40.59 427
5H-2, 138–150 36.68 48 30 18.15 7.79 546 ND 0.60 3.81 1.89 10.56 36.02 422
5H-6, 138–150 42.68 50 30 15.32 7.62 547 ND 0.53 3.34 2.58 10.24 36.12 432
6H-2, 138–150 46.18 52 30.5 16.66 7.79 545 ND 0.67 3.38 2.20 10.68 37.89 433
6H-5, 138–150 50.68 40 30 17.43 7.67 541 ND 0.49 3.47 2.18 9.89 38.85 427
7H-2, 138–150 55.68 52 30 22.05 7.60 541 ND 0.54 3.81 2.16 9.82 40.53 423
7H-5, 138–150 60.18 40 30.5 23.15 7.72 539 ND 0.57 4.07 2.44 10.00 41.64 426
8H-2, 138–150 63.82 52 31 26.49 7.73 540 ND 1.06 4.42 2.63 9.92 43.11 426
8H-5, 138–150 68.32 50 30 23.26 8.15 540 ND 0.59 5.03 1.61 10.94 39.38 416
9H-2, 138–150 74.68 48 30 26.66 8.01 543 ND 0.87 5.37 1.95 9.42 37.85 386
9H-5, 130–142 79.10 50 30 26.66 8.00 539 ND 0.63 5.46 2.37 9.74 41.88 411
10H-2, 130–142 84.10 48 30 27.92 7.79 539 ND 0.94 5.40 2.47 9.14 42.30 409
10H-4, 138–150 87.10 40 30 26.53 7.98 540 ND 0.68 5.69 2.09 9.39 41.21 411
11H-3, 138–150 93.98 42 29.5 23.74 8.26 539 ND 0.83 6.23 2.01 10.05 39.84 417
12H-3, 138–150 99.83 45 29.5 25.46 7.93 534 ND 0.62 5.80 2.56 8.76 42.15 411
13H-4, 138–150 107.88 48 29 22.64 8.04 533 ND 0.77 5.73 2.42 8.83 41.65 409
14H-3, 138–150 114.09 45 29 19.62 8.05 532 ND 0.65 5.85 2.25 8.62 39.93 407
15H-2, 118–130 118.48 50 29 18.57 8.10 531 ND 0.71 5.63 2.78 8.10 38.25 395
16H-3, 133–145 124.78 49 29 13.90 8.34 530 ND 0.80 5.94 2.34 8.67 36.71 402
17X-3, 133–145 132.13 42 29 18.96 7.90 524 1.33 1.26 5.69 3.21 7.04 35.56 371
18X-3, 113–130 136.33 40 29 19.52 7.83 517 ND 0.54 5.69 3.72 7.69 38.08 399
19X-5, 71–96 148.55 45 29 16.67 8.05 515 ND 1.29 5.65 4.07 7.45 36.38 392
20X-5, 130–153 158.24 42 28 14.13 7.96 512 1.17 1.97 5.81 4.35 7.95 35.63 403
21X-7, 68–93 169.64 21 28 17.73 7.74 508 ND 1.37 5.36 5.05 7.00 34.63 386
22X-5, 88–105 178.18 18 28 — — 506 ND 0.80 5.32 4.92 6.85 32.72 377
23X-6, 109–126 188.79 18 27.5 — — 503 ND 1.24 5.65 4.66 8.02 32.11 400
24X-4, 122–150 194.91 24 27 13.74 7.95 488 ND 1.23 5.36 3.86 7.43 28.99 375
25X-3, 74–90 202.69 19 27 — — 486 ND 1.66 5.36 3.52 7.75 26.18 372
26X-4, 98–115 214.68 24 26 13.09 7.75 483 2.76 2.47 5.11 4.10 7.72 26.83 375
27X-2, 100–127 220.00 17 26 14.46 7.74 481 ND 0.83 5.02 3.34 7.52 25.76 372
28X-7, 33–65 236.43 17 26 17.54 7.84 470 ND 0.74 5.02 2.75 7.26 24.69 351
29X-3, 45–83 236.75 26 26 19.03 7.84 465 ND 0.75 5.15 2.93 7.99 26.04 371
30X-2, 110–145 240.90 38 26 20.83 7.83 480 ND 1.66 5.37 3.47 8.39 26.81 377
31X-4, 118–150 252.48 24 26 21.62 7.78 465 ND 0.95 5.37 3.45 8.05 26.00 370
32X-3, 73–105 259.83 60 25 22.86 7.64 457 1.81 1.66 5.67 3.85 8.84 25.41 374
33X-5, 58–94 271.89 20 24.5 20.69 7.98 454 3.83 2.65 5.63 4.23 9.21 24.56 371
34X-2, 86–122 277.96 50 24.5 22.19 7.85 — 2.71 2.48 6.54 4.22 9.33 24.02 369
35X-5, 98–130 292.08 45 24 19.44 7.87 444 1.83 2.26 6.93 4.33 7.89 22.55 342
36X-2, 93–125 297.63 50 25 19.45 7.87 445 3.10 2.85 7.24 4.49 8.67 23.67 362
37X-2, 91–123 307.21 50 24 — — — 1.62 1.97 7.63 4.72 8.26 22.28 356
38X-1, 118–150 310.48 40 24 17.96 7.86 445 2.98 3.74 7.67 5.44 8.43 24.17 364
39X-5, 118–150 321.68 35 24 17.89 7.94 432 ND 1.74 7.93 5.46 8.08 22.42 358
40X-4, 80–92 329.10 40 23 15.31 8.00 430 ND 1.93 8.03 5.23 7.19 20.95 335
41X-5, 104–136 340.74 48 23 13.37 7.98 423 ND 1.62 7.83 5.66 7.08 20.86 345
42X-3, 64–96 347.04 36 24 9.50 7.90 — 2.88 2.84 7.45 6.58 6.61 22.04 350
43X-5, 55–87 358.71 32 22.5 9.24 7.86 416 1.87 2.00 6.97 7.63 6.07 20.23 339
45X-3, 55–88 369.65 30 22 6.36 7.85 418 1.80 2.45 7.05 7.55 5.35 18.73 317
46X-2, 115–150 374.25 30 22 6.08 8.04 409 1.97 2.31 6.72 8.32 5.43 19.29 334
47X-2, 95–130 379.35 30 22 4.91 7.99 411 1.28 2.05 6.46 8.29 4.81 18.12 316
48X-1, 96–122 382.86 34 22 3.98 8.13 415 2.91 3.53 6.09 8.60 5.38 20.03 337
49X-3, 106–138 394.66 12 22 3.69 8.12 405 2.72 2.22 6.18 8.18 4.79 18.23 322
50X-2, 97–129 402.27 40 22 4.37 8.03 401 1.90 2.29 6.00 8.32 4.55 18.23 323
51X-5, 85–117 415.96 12 21 — — 397 1.60 1.70 5.37 8.77 4.07 17.17 317
52X-5, 70–102 425.00 30 21 2.57 8.22 391 2.05 2.39 5.39 9.39 3.97 15.14 313
53X-3, 53–85 430.70 11 21 — — 385 1.74 2.08 4.93 10.42 3.86 14.28 326
54X-5, 104–140 444.24 48 20.5 1.84 8.29 387 2.06 2.11 5.00 9.53 4.22 11.41 319
55X-2, 81–117 448.81 15 20.5 — — 388 2.10 — 4.74 — — — —
56X-2, 64–76 458.24 40 20.5 2.75 8.31 384 1.96 2.38 4.38 7.39 4.61 12.58 321
57X-3, 63–99 469.33 10 20.5 — — 382 2.12 2.75 4.85 5.81 5.17 12.32 328
58X-2, 90–126 478.26 0.4 20.5 — — — — — — — — — —
59X-4, 93–125 489.66 12 20.5 — — 380 2.63 2.99 4.70 5.30 5.54 13.21 331
60X-4, 60–92 499.72 16 20 5.75 8.26 366 ND 1.87 4.38 4.82 5.15 12.40 312
61X-4, 102–138 510.12 10 18 — — 355 ND 1.30 4.22 4.73 5.01 12.23 303
62X-1, 54–81 510.24 12 19 — — — 2.75 2.77 4.54 5.71 5.28 15.03 323
63X-4, 84–122 518.74 12 19 — — — 1.67 2.29 4.39 5.58 5.36 14.60 315

IC = ion chromatography, ICP = inductively coupled plasma–atomic emission spectroscopy. — = not measured, ND = not detectable.

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