Table T3. Composition of interstitial pore water, Site U1397B.
| Core, section |
Depth (mbsf) | Alkalinity (mM) |
pH | Cl (mM) |
± | Salinity | NH4 (mM) |
Na (mM) |
± | Mg (mM) |
± | K (mM) |
± | Ca (mM) |
± | ΣS (mM) |
± | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Top | Bottom | |||||||||||||||||
| 340-U1397B- | ||||||||||||||||||
| 1H-3 | 4.40 | 4.50 | 3.43 | 7.54 | 558.7 | 36 | 0.09 | 471.3 | 1.7 | 52.9 | 0.3 | 11.0 | 0.1 | 10.2 | 0.1 | 27.7 | 0.3 | |
| 2H-3 | 10.82 | 10.92 | 557.8 | 0.13 | ||||||||||||||
| 2H-6 | 15.32 | 15.42 | 4.14 | 8.22 | 560.1 | 36 | 0.23 | 474.9 | 3.1 | 53.6 | 0.6 | 10.6 | 0.0 | 9.7 | 0.1 | 26.8 | 0.1 | |
| 3H-2 | 19.00 | 19.10 | 4.66 | 7.46 | 564.1 | 37 | 0.25 | 477.4 | 2.9 | 54.0 | 0.4 | 10.6 | 0.1 | 9.4 | 0.1 | 26.6 | 0.2 | |
| 3H-5 | 23.36 | 23.46 | 5.08 | 7.58 | 562.2 | 36 | 0.36 | 473.4 | 2.4 | 53.8 | 0.3 | 10.3 | 0.2 | 9.1 | 0.1 | 26.3 | 0.3 | |
| 5H-2 | 37.00 | 37.10 | 5.04 | 7.88 | 570.5 | 38 | 0.47 | 479.0 | 4.2 | 53.6 | 0.4 | 10.1 | 0.2 | 9.3 | 0.1 | 26.5 | 0.3 | |
| 5H-6 | 42.55 | 42.65 | 5.00 | 7.28 | 570.7 | 37 | 0.48 | 484.6 | 2.7 | 53.4 | 0.3 | 10.4 | 0.2 | 9.2 | 0.1 | 26.4 | 0.3 | |
| 6H-2 | 46.50 | 46.60 | 5.11 | 7.51 | 566.2 | 0.7 | 37 | 0.47 | 482.4 | 5.7 | 53.7 | 0.6 | 10.4 | 0.2 | 9.4 | 0.1 | 26.3 | 0.4 |
| 6H-6 | 52.50 | 52.60 | 4.38 | 7.33 | 566.9 | 37 | 0.45 | 480.8 | 2.4 | 53.3 | 0.3 | 10.6 | 0.1 | 9.2 | 0.1 | 26.2 | 0.2 | |
| 9H-4 | 75.55 | 75.65 | 4.06 | 7.60 | 571.2 | 37 | 0.39 | 482.1 | 4.2 | 53.8 | 0.5 | 10.4 | 0.3 | 9.6 | 0.1 | 27.1 | 0.2 | |
| 23X-2 | 164.02 | 164.12 | 3.86 | 7.43 | 567.2 | 38 | 0.25 | 477.0 | 1.5 | 53.5 | 0.4 | 9.8 | 0.3 | 10.8 | 0.1 | 27.3 | 0.4 | |
| 23X-5 | 168.52 | 168.62 | 4.02 | 8.13 | 568.5 | 38 | 0.27 | 479.1 | 4.5 | 53.7 | 0.5 | 9.9 | 0.1 | 10.9 | 0.1 | 27.6 | 0.3 | |
| 24X-2 | 173.60 | 173.70 | 5.00 | 7.94 | 571.2 | 38 | 0.30 | 496.5 | 9.7 | 55.6 | 1.3 | 10.1 | 0.3 | 11.4 | 0.2 | 28.7 | 0.4 | |
| 25X-1 | 181.60 | 181.70 | 3.88 | 7.59 | 568.9 | 38 | 0.32 | 481.9 | 1.8 | 53.7 | 0.3 | 9.9 | 0.2 | 11.0 | 0.0 | 27.7 | 0.1 | |
Uncertainties for Cl represent ±1σ based on repeat analyses. Section 340-U1397B-2H-3 was noted to be particularly sandy during processing and likely had significant contamination during drilling. Shaded samples represent average values for Na, Mg, K, Ca, and ΣS (total sulfur) from duplicate analyses from separate runs.
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