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Table T5. Uncorrected pore fluid major element concentrations, Hole U1380C.

Core, section,
interval (cm)
Depth
(mbsf)
Volume
(mL)
Salinity pH Alkalinity
(mM)
SO4 IC
(mM)
Cl titr.
(mM)
Cl IC
(mM)
Br
(mM)
Na
(mM)
K
(mM)
Ca
(mM)
Mg
(mM)
NH4
(mM)
344-U1380C-
3R-3, 114–144 451.94 25.0 24.0     1.63 390 388 1.35 325 6.18 8.2 20.3 4.45
3R-5, 112–150 454.70 3.0         390              
4R-1, 51–73 458.13 3.0 21.5     1.48 377 381 1.29          
5R-3, 107–137 470.67 15.0 22.5     1.99 390 391 1.28 316 5.92 9.1 18.8 4.26
5R-5, 86–116 472.90 11.0 22.5 8.0 6.76 2.40 387     340 7.04 10.0 20.6 3.65
6R-3, 122–152 481.25 11.5 21.5     1.33 384 385 1.32 314 5.86 9.9 17.0 4.17
6R-5, 120–150 483.97 11.5 21.5 8.2 4.53 2.19 388 392 1.29 329 6.25 10.6 18.4 4.23
7R-3, 120–150 491.00 11.5 22.0     3.52 389 396 1.25 323 5.72 12.1 19.1 3.71
7R-5, 87–107 493.40 14.0 22.5 8.1 3.56 3.42 393 404 1.27 328 5.89 12.1 18.0 4.25
8R-2, 116–146 499.12 12.5 22.5     2.91 386 393 1.26 316 5.20 12.3 17.1 3.77
8R-6, 107–137 504.91 11.0 22.0 8.3 1.80 1.89 383 391 1.29 320 5.36 13.3 15.2 3.72
9R-1, 102–132 507.22 14.5 22.0 8.2 2.30 3.77 401 387 1.28 334 5.61 13.9 16.4 3.55
9R-6, 79–109 513.28 10.0 22.5     1.68 383     309 4.90 14.4 13.3 3.23
10R-2, 35–65 517.25 13.5 22.5 8.2 1.93 2.91 398 403 1.32 329 5.53 14.9 14.7 3.47
10R-4, 53–78 519.53 10.5 22.5     1.48 380 380 1.30 302 4.75 14.7 11.6 3.49
10R-6, 64–90 521.93 18.5 22.0 8.4 1.58 1.63 385 375 1.27 308 4.71 15.6 11.8 3.72
11R-2, 59–89 526.87 17.0 21.5     1.38 382 388 1.30 307 4.25 17.0 11.5 3.20
11R-4, 87–117 529.54 15.0 22.0     3.01 387 386 1.24 316 4.66 16.7 11.7 3.08
12R-2, 79–113 537.55 4.5 22.0     2.09 386 394 1.29 317 4.22 19.4 10.3 2.87
12R-4, 78–108 539.58 19.0 22.5     3.26 392 397 1.25 319 4.08 20.2 11.6 2.84
12R-8, 62–92 543.72 17.5 22.5     3.57 388 396 1.24 325 4.20 20.6 9.6 3.07
13R-3, 50–80 548.02 14.5 21.5     1.58 381 385 1.28 312 3.86 21.3 7.8 2.97
13R-6, 58–88 551.90 12.5 22.0     1.28 390     316 3.85 22.8 7.3 3.00
14R-1, 127–142 555.82 2.0 21.0     1.22 377 379 1.31 310 3.43 22.8 5.5  
17R-1, 63–90 584.40 2.0 23.0     2.24 401 410 1.36 323 2.60 29.4 4.5 1.81
Drilling fluid     32.0 8.2 2.28 26.83 508 508 0.80 436 9.78 9.7 49.1  

IC = ion chromatograph, titr. = titration.

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