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Table T16. Interstitial water constituents, Hole U1411B.

Core, section,
interval (cm)
Depth
(mbsf)
pH Alkalinity
(mM)
NH4
(μM)
Salinity Cl
(mM)
Na+
(mM)
SO42–
(mM)
HPO4
(μM)
Mn2+
(μM)
Fe2+
(μM)
Ca2+
(mM)
Mg2+
(mM)
K+
(mM)
B
(μM)
342-U1411B-
2H-6, 145–150 9.85 7.8 3.20 11 37 541.84 473.71 27.97 BDL 14.79 ND 11.29 14.79 10.96 373.37
3H-6, 145–150 19.35 7.5 2.99 8 37 547.28 479.44 27.17 BDL 7.63 ND 11.36 7.63 14.74 416.73
4H-6, 145–150 28.85 7.7 2.98 11 38 548.33 480.00 27.70 BDL 5.21 2.03 11.72 5.21 12.70 418.16
5H-6, 145–150 38.35 7.6 2.94 14 37 550.81 487.97 26.96 BDL 4.29 3.21 12.28 4.29 10.09 437.59
6H-6, 145–150 47.85 7.8 2.72 20 37 538.78 472.51 25.66 BDL 3.16 ND 12.29 3.16 9.84 423.03
7H-6, 145–150 57.36 7.5 2.90 26 37 541.63 477.83 26.70 BDL 3.56 3.00 12.81 3.56 8.34 440.12
8H-6, 145–150 66.91 7.4 2.65 37 37 549.30 483.59 25.92 BDL 2.97 9.95 13.31 2.97 7.70 462.68
9H-7, 96–101 76.10 7.3 2.94 39 37 540.77 475.98 24.95 BDL 3.55 14.19 13.86 3.55 8.16 482.21
10H-6, 145–150 85.85 7.2 2.64 47 37 543.36 484.11 26.08 BDL 3.32 32.53 14.29 3.32 11.49 447.15
11H-6, 140–150 95.10 7.3 2.82 55 37 550.24 485.88 25.68 BDL 3.32 12.37 14.75 3.32 11.46 483.37
13H-6, 140–150 114.34 7.2 2.72 87 37 536.48 476.80 23.83 BDL 3.81 26.00 15.50 3.81 10.68 458.30
19H-6, 140–150 171.00 7.2 2.57 140 37 539.21 478.14 21.69 BDL 4.48 9.56 18.14 4.48 8.26 425.40
23X-5, 140–150 204.00 7.1 1.86 185 37 545.09 478.27 20.46 BDL 3.36 18.72 19.79 3.36 7.32 351.13
24X-3, 140–150 210.60 7.1 1.96 198 37 541.51 477.54 21.56 BDL 4.45 12.51 19.84 4.45 7.45 344.95
25X-4, 140–150 221.70 7.3 1.50 212 37 556.83 490.65 21.00 BDL 2.97 25.44 20.31 2.97 7.82 308.45
26X-6, 131–141 234.21 7.3 1.33 239 37 554.25 489.42 20.35 BDL 2.35 0.86 20.75 2.35 7.57 293.76
28X-6, 131–141 253.41 6.9 1.50 241 37 545.47 483.41 20.01 BDL 2.63 ND 21.36 2.63 6.72 310.90

BDL = below detection limit (HPO4 = 0.2 μM), calculated as two times the standard deviation of multiple measures of a blank. ND = not detected.

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