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Table T18. Interstitial water geochemistry corrected for drill fluid contamination using an assumed seawater composition listed on the table, Hole C0011B. (See table notes.)

Core,
section
Depth
CSF (m)
pH Alkalinity
(mM)
Salinity Cl
(mM)
Na
(mM)
NH4
(mM)
H4SiO4
(µM)
Ca
(mM)
Mg
(mM)
Sr
(µM)
Li
(µM)
K
(mM)
PO4
(µM)
SO4
(mM)
Mn
(µM)
Br
(mM)
Ba
(µM)
B
(µM)
HS
(µM)
Seawater values: 2.30 34.9 558 479 0 160 10.5 54.3 91 26 10.4 3.00 28.9 0 0.80 0.15 416 0.0
322-C0011B-
3R-2 359.61 7.90 1.60 32.4 560 499 0.71 826 25.6 4.0 130 161 2.0 0.72 68 1.05 11 433 0.3
4R-3 366.94 8.05 2.94 32.5 564 499 0.96 1036 25.7 4.5 129 159 2.8 2.58 67 1.01 40 527 ND
5R-2 375.36 8.25 1.87 32.5 565 1.02 0.97 ND
6R-5 388.43 7.81 1.49 31.7 551 485 0.81 289 26.3 5.3 143 155 2.2 3.21 42 0.97 90 405 ND
7R-3 395.13 8.45 1.64 32.2 561 497 1.01 244 25.3 4.8 139 151 2.4 1.93 26 0.99 96 385 ND
8R-2 404.27 8.73   32.3 554 495 1.02 204 25.5 4.3 139 151 0.5 2.62 24 0.92 68 370 3.2
9R-2 413.63 7.72 1.33 32.3 563 506 1.00 484 27.1 1.3 140 160 1.98 49 0.93 13 575 1.3
10R-3 424.74 8.05 1.77 31.3 538 0.84 0.92 4.7
11R-4 434.64 8.33 1.61 32.4 561 497 1.00 669 26.6 4.6 151 155 0.5 34 0.95 93 512 4.2
12R-6 446.96 8.52   32.2 558 498 1.03 176 26.3 4.1 154 151 0.4 2.47 26 0.92 120 500 4.8
13R-3 453.32 8.38 1.54 31.6 544 0.94 0.92 ND
14R-4 463.15 8.13 1.44 32.1 550 486 0.88 196 27.6 3.9 167 157 0.1 1.80 29 0.94 99 533 ND
15R-3 472.03 8.22 2.00 31.6 546 0.75 0.92 ND
16R-2 478.21 8.18 1.82 32.3 560 493 1.01 187 28.7 4.2 171 161 0.1 34 1.01 145 718 4.0
19R-3 492.65 8.20 1.13 31.5 539 0.88 2.62 0.93 6.5
21R-2 501.65 31.4 545 0.77 2.26 0.95 4.5
23R-2 521.15 31.4 540 0.77 1.26 0.89 4.5
24R-1 529.90 8.18 1.13 541 0.99 1.58 0.94 0.7
25R-2 539.86 8.62 0.94 31.8 545 479 1.24 60 30.7 2.6 167 173 0.0 16 0.92 11 272 1.6
26R-2 550.22 31.2 540 1.14 2.37 0.91 ND
27R-2 559.36 8.53 1.00 30.8 536 1.13 0.97 ND
28R-2 569.46 31.9 547 1.21 0.91 5.4
30R-2 581.78 30.8 525 460 1.01 72 39.9 2.1 178 164 0.0 2.43 19 0.89 17 230 12.6
31R-5 587.86 30.6 528 460 32.0 2.4 0.86 7.6
32R-5 601.39 31.5 535 464 0.96 33.0 2.8 0.0 0.91 8.2
33R-2 605.94 30.5 529 461 0.98 65 31.7 2.9 177 163 0.1 16 0.91 11 225 ND
35R-4 628.15 30.8 520 1.03 0.87 4.4
36R-2 634.67 517 448 1.03 32.8 2.3 ND 0.89 13.3
37R-2 644.71 0.54 30.9 535 457 0.80 68 38.2 1.5 183 180 ND 40 0.92 7 354 9.7
38R-2 654.39 30.2 520 452 0.73 35.3 ND 0.89 6.6
39R-4 666.74 31.3 518 445 37.2 0.4 0.87 2.3
40R-3 674.82 31.5 527 446 0.74 55 35.4 5.6 177 181 0.2 ND 20 0.92 6 219 2.0
42R-2 681.88 30.7 532 456 0.80 77 36.1 2.7 183 193 ND 21 0.90 8 241 11.5
43R-3 685.87 32.2 526 449 0.77 72 41.3 192 209 13 0.94 12 166 7.6
44R-3 691.09 30.8 518 439 0.74 51 35.2 4.2 177 177 1.4 13 0.91 12 179 ND
45R-3 700.28 8.39 1.02 31.0 510 427 0.65 61 40.1 1.0 193 213 0.3 32 0.86 14 306 ND
47R-2 712.61 30.3 504 417 0.61 60 41.4 1.9 193 214 0.5 33 0.84 14 253 ND
48R-3 722.54 509 423 0.49 44.5 0.1 0.83 ND
51R-4 750.75 30.9 510 406 0.51 54 49.5 2.5 210 233 0.7 22 0.84 20 191 ND
55R-2 779.50 8.83 1.83 30.9 528 428 0.74 74 47.0 1.7 184 206 1.2 ND 24 0.88 49 ND
56R-2 844.53 31.2 516 379 0.38 72.4 0.1 0.84 ND
57R-4 850.44 32.6 531 388 0.53 57 74.1 234 149 0.3 3 0.91 44 111 ND
58R-3 858.34 32.8 542 398 0.42 63 74.1 229 148 0.1 14 0.93 35 169 ND

Notes: Data from Sections 322-C0011B-52R-6, 53R-2, and 59R-3 were discarded because of a drilling fluid contamination ratio >15%. — = not determined, ND = not detected.

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