Table T6. Chemical composition of interstitial pore water, Site C0017. (Continued on next page)
Core, section, interval (cm) | Depth (mbsf) |
Volume (mL) |
Refractive index |
pH | Alkalinity (mM) |
Cl (mM) |
Phosphate (µM) |
NH4 (mM) |
Si (mM)* |
Br (mM) |
SO4 (mM) |
Na (mM) |
Nacharge |
Difference (%) |
Na/Cl |
K (mM) |
Mg (mM) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
331-C0017A- | |||||||||||||||||
1H-1, 80–90 | 0.80 | 36.0 | 1.33936 | 7.5 | 3.237 | 540.5 | 17.3 | 0.02 | 0.62 | 0.829 | 28.43 | 466 | 469 | 0.62 | 0.862 | 11.8 | 50.1 |
1H-5, 88–98 | 6.52 | 40.5 | 1.33935 | 7.5 | 4.313 | 543.9 | 10.9 | 0.18 | 0.61 | 0.852 | 27.97 | 471 | 470 | 0.22 | 0.865 | 11.6 | 51.5 |
331-C0017B- | |||||||||||||||||
1H-2, 85–95 | 11.06 | 53.0 | 1.33934 | 7.47 | 6.993 | 543.1 | 24.7 | 0.45 | 0.79 | 0.834 | 26.15 | 471 | 471 | 0.08 | 0.867 | 11.5 | 50.1 |
1H-5, 70–80 | 15.14 | 57.0 | 1.33934 | 7.56 | 7.340 | 542.9 | 17.6 | 0.45 | 0.71 | 0.851 | 25.79 | 477 | 470 | 1.41 | 0.878 | 11.0 | 50.4 |
331-C0017C- | |||||||||||||||||
1H-2, 60–70 | 20.31 | 58.0 | 1.33934 | 7.34 | 5.136 | 545.5 | 11.1 | 0.21 | 0.58 | 0.816 | 26.68 | 468 | 470 | 0.45 | 0.858 | 11.2 | 50.9 |
1H-5, 115–125 | 25.09 | 59.0 | 1.33936 | 7.41 | 3.205 | 546.6 | 4.6 | BD | 0.45 | 0.851 | 28.86 | 474 | 469 | 1.06 | 0.867 | 11.4 | 53.0 |
2H-1, 65–75 | 28.45 | 58.0 | 1.33930 | 7.68 | 2.340 | 541.7 | 1.9 | BD | 0.19 | 0.840 | 28.87 | 465 | 467 | 0.59 | 0.858 | 10.2 | 51.9 |
2H-2, 65–75 | 29.85 | 55.0 | 1.33935 | 7.41 | 2.668 | 543.1 | 2.4 | BD | 0.19 | 0.865 | 29.15 | 468 | 469 | 0.25 | 0.862 | 11.5 | 51.7 |
331-C0017D- | |||||||||||||||||
1H-3, 80–90 | 63.62 | 32.5 | 1.33936 | 7.27 | 2.984 | 550.1 | 0.7 | BD | 0.79 | 0.858 | 29.49 | 462 | 478 | 3.24 | 0.840 | 10.0 | 51.8 |
1H-5. 80–90 | 66.44 | 28.5 | 1.33937 | 7.36 | 3.118 | 550.2 | 1.4 | BD | 0.76 | 0.763 | 25.09 | 470 | 466 | 0.83 | 0.855 | 10.2 | 52.8 |
1H-6, 110–120 | 68.15 | 30.5 | 1.33936 | 7.45 | 3.064 | 543.3 | 1.2 | BD | 0.79 | 0.844 | 27.77 | 465 | 467 | 0.44 | 0.856 | 9.8 | 52.2 |
2H-5, 30–40 | 75.15 | 37.5 | 1.33935 | 7.43 | 3.001 | 551.1 | 0.9 | BD | 0.91 | 0.862 | 29.26 | 465 | 475 | 2.08 | 0.844 | 8.9 | 53.5 |
6X-1, 66–76 | 94.86 | 19.5 | 1.33941 | 7.78 | 5.694 | 550.7 | 0.6 | 0.07 | 0.41 | 0.883 | 29.65 | 464 | 472 | 1.68 | 0.843 | 7.1 | 53.5 |
7H-2, 112–122 | 106.23 | 16.5 | 1.33940 | — | — | 547.7 | — | 0.06 | 0.43 | 0.825 | 27.01 | 461 | 460 | 0.23 | 0.842 | 7.1 | 52.6 |
7H-4, 42–52 | 108.34 | 14.3 | 1.33941 | 7.67 | 5.346 | 550.5 | 0.4 | 0.05 | 0.38 | 0.860 | 28.99 | 465 | 469 | 0.83 | 0.845 | 6.6 | 54.3 |
7H-5, 80–90 | 110.14 | 24.5 | 1.33941 | 7.4 | 4.618 | 554.2 | 1.0 | 0.04 | 0.59 | 0.886 | 29.53 | 459 | 479 | 4.15 | 0.828 | 7.2 | 52.2 |
9X-5, 25–35 | 126.13 | 25.5 | — | 7.44 | 5.409 | 549.2 | 0.3 | BD | 0.30 | 0.867 | 28.37 | 464 | 471 | 1.49 | 0.844 | 7.0 | 49.1 |
9X-8, 75–90 | 130.86 | 14.0 | 1.33954 | 7.88 | 6.390 | 555.2 | 0.5 | BD | 0.28 | 0.867 | 28.48 | 461 | 476 | 3.07 | 0.830 | 7.0 | 51.6 |
10X-1, 88–102 | 131.58 | 11.5 | — | 7.77 | 4.524 | 546.3 | 0.9 | BD | 0.79 | 0.872 | 29.52 | 460 | 463 | 0.61 | 0.842 | 7.4 | 55.6 |
10X-4, 101–121 | 135.95 | 27.0 | 1.33949 | 7.58 | 6.117 | 556.1 | 1.2 | BD | 0.27 | 0.836 | 27.41 | 461 | 477 | 3.25 | 0.830 | 7.9 | 50.2 |
11X-1, 80–90 | 141.00 | 22.0 | — | 7.41 | 5.631 | 549.2 | 0.6 | 0.09 | 0.27 | 0.850 | 27.77 | 478 | 469 | 1.95 | 0.871 | 10.2 | 49.2 |
Bottom water | 2.04 | 543 | 0.836 | 28.08 | 466 | 0.859 | 10.15 | 52.5 |
* = value was determined colorimetrically aboard ship, † = value was determined postcruise via ICP-OES. Volumes are crude approximates only. Nacharge is the Na value that we calculate from charge balance based on Cl, Br, sulfate, alkalinity, Mg, K, and Ca balance. Bottom water values were calculated based on the chlorinity of samples from the uppermost ~1 mbsf from Sites C0014, C0015, and C0017 (n = 4) and assuming that the elements are in constant proportion to chloride; we also make the assumption that chlorinity and chloride are the same. BD = below detection limit, — = no data.
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