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Table T11. Interstitial fluid chemistry, Site U1368.

Core, section, interval (cm) Depth (mbsf) pH ISE Alkalinity (mM) TITRAUTO DIC (mM) OI-IC Cl (mM) M-IC SO4 (mM) M-IC S/Cl (%) Calc. anom. P (µM) Spec. Si (µM) Spec. Ca (mM) ICPAES Mg (mM) ICPAES Na (mM) ICPAES K
(mM) ICPAES
329-U1368C-
1H-1 0.05 7.67 2.75 2.62 554.41 27.52 –3.91 2.29 237.42 10.03 51.05 473.93 11.26
1H-1, 50–60 0.55 7.76 2.57 2.60 553.78 27.50 –3.87 1.78 225.21 10.56 50.76 476.09 11.01
1H-1, 100–110 1.05 7.77 2.55 2.58 554.15 27.52 –3.88 1.77 241.14 10.39 50.70 470.52 10.79
1H-1, 140–150 1.45 7.61 2.77 2.62 553.82 27.50 –3.90 1.80 236.64 10.36 51.01 468.39 10.70
1H-2, 50–60 2.05 7.75 2.56 2.55 554.62 27.56 –3.81 1.42 251.07 10.34 51.04 469.47 10.53
1H-2, 100–110 2.55 7.77 2.54 2.57 553.27 27.34 –4.35 1.32 243.94 10.47 50.57 472.23 10.86
1H-2, 140–150 2.95 7.69 2.72 2.65 553.93 27.38 –4.33 1.46 248.06 10.59 50.54 472.63 10.86
1H-3, 50–60 3.55 7.95 2.49 2.49 555.29 28.11 –2.02 1.17 217.01 10.36 52.73 472.51 10.63
1H-3, 100–110 4.05 7.75 2.53 2.55 553.49 27.65 –3.29 1.05 230.32 10.26 51.62 470.19 10.55
1H-3, 140–150 4.45 7.67 2.76 2.72 554.49 27.54 –3.88 1.66 289.47 10.55 51.43 473.04 10.70
1H-4, 50–60 5.05 7.76 2.58 2.58 554.95 27.44 –4.28 1.73 289.53 10.52 50.72 474.60 10.76
1H-4, 100–110 5.55 7.76 2.56 2.60 554.49 27.43 –4.24 0.93 257.11 10.80 50.64 472.57 10.89
1H-4, 140–150 5.95 7.74 2.67 2.70 554.80 27.49 –4.09 0.89 256.24 10.34 51.06 471.34 10.70
1H-5, 50–60 6.55 7.78 2.52 2.55 553.85 27.43 –4.15 0.98 251.36 10.47 51.09 474.88 11.08
1H-5, 100–110 7.05 7.75 2.63 2.61 554.35 27.34 –4.53 0.98 253.99 10.71 50.22 473.07 11.04
1H-5, 140–150 7.45 7.77 2.72 2.72 554.01 27.32 –4.55 1.35 319.78 10.60 49.88 471.12 10.75
1H-6, 21–31 7.76 7.74 2.69 2.61 554.34 27.48 –4.03 0.97 257.41 10.68 50.84 472.30 10.95
2H-1, 40–50 8.45 7.76 2.45 2.46 553.85 27.63 –3.45 0.79 232.76 10.35 52.55 474.82 10.70
2H-1, 100–110 9.05 7.74 2.46 2.49 553.98 27.65 –3.39 0.84 221.78 10.15 52.00 469.39 10.49
2H-1, 140–150 9.45 7.73 2.71 2.69 553.75 27.60 –3.52 0.92 259.82 10.31 51.72 471.30 10.60
2H-2, 50–60 10.05 7.76 2.50 2.45 555.76 27.91 –2.80 1.23 247.99 10.07 52.64 469.71 10.64
2H-2, 100–110 10.55 7.77 2.50 2.48 555.85 27.72 –3.45 0.83 240.09 10.11 52.33 473.22 10.61
2H-2, 140–150 10.95 7.71 2.70 2.66 553.07 27.59 –3.44 0.98 254.13 10.24 52.36 469.61 10.57
2H-3, 50–60 11.55 7.72 2.46 2.50 — — — 1.02 267.36 9.96 51.84 470.25 10.67
2H-3, 100–110 12.05 7.80 2.43 2.48 554.20 27.47 –4.05 0.79 228.40 9.78 51.80 470.80 10.59
2H-3, 140–150 12.45 7.76 2.59 2.56 554.01 27.67 –3.32 0.97 259.54 10.06 52.28 468.91 10.38
2H-4, 50–60 13.05 7.77 2.41 2.44 555.11 27.59 –3.80 1.04 226.29 9.76 51.91 468.13 10.51
2H-4, 100–110 13.55 7.78 2.39 2.38 552.87 27.65 –3.18 0.90 240.19 9.78 52.23 468.80 10.41
2H-4, 140–150 13.95 7.74 2.60 2.58 553.55 27.64 –3.34 1.02 255.82 10.07 52.71 472.03 10.58
2H-5, 50–60 14.55 7.80 2.37 2.35 555.03 28.12 –1.93 1.05 222.17 10.06 52.86 470.90 10.76
2H-5, 100–110 15.05 7.81 2.38 2.39 554.11 28.07 –1.95 1.24 242.14 9.70 51.21 469.50 10.52
2H-5, 140–150 15.45 7.82 2.49 2.43 554.93 28.29 –1.32 1.27 232.59 10.13 52.32 468.26 10.42
2H-6, 0–10 15.48 7.92 2.47 2.38 554.88 28.46 –0.70 1.61 201.24 10.29 52.71 471.66 10.52

ISE = ion-selective electrode, TITRAUTO = automated titration, IC = ion chromatography, OI-IC = Ol analytical lC, M-IC = Metrohm IC, Calc. anom. = calculated anomaly, Spec. = spectrophotometry, Dx-IC = Dionex lC, ICPAES = inductively coupled plasma–atomic emission spectroscopy. — = no data.

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