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Table T15. Color measurements (absorbance) of interstitial water, Site U1426.

Core, section,
interval (cm)		 Top depth
CSF-A (m)		 Top depth
CCSF-A (m)		 Alkalinity
(mM)		 Sample
type		 Absorbance
227 nm		 Absorbance
325 nm
346-U1426A-
1H-1, 0–5 0.00 0.17 2.26 ML 0.0655 0.0020
1H-1, 145–150 1.45 1.62 7.74 IW-Sq    
2H-1, 145–150 3.95 4.65 27.67 IW-Sq 3.8872 0.4540
3H-1, 145–150 13.45 14.57 50.10 IW-Sq 4.1400 0.6314
5H-1, 133–138 32.33 36.07 64.75 IW-Sq 3.7674 0.6419
7H-1, 129–134 51.29 56.98 76.43 IW-Sq 3.6516 0.4634
11H-2, 142–147 90.43 97.39 84.09 IW-Sq 3.8173 0.4447
13H-2, 135–140 109.29 119.08 84.65 IW-Sq 3.8506 0.4421
17H-2, 140–145 147.73 165.94 81.92 IW-Sq 4.0797 0.7091
19H-1, 140–145 164.10 185.85 79.93 IW-Sq 3.8332 0.3949
23H-2, 95–100 202.25 227.99 72.48 IW-Sq    
29H-1, 141–146 257.61 283.35 62.75 IW-Sq 3.6917 0.2845
31H-1, 145–150 267.05 292.79 61.02 IW-Sq 3.6536 0.2613
37H-1, 145–150 295.25 320.99 50.29 IW-Sq 3.5605 0.2135
41H-1, 145–150 308.85 334.59 46.21 IW-Sq 3.5259 0.1919
43H-1, 133–138 318.13 343.87 46.09 IW-Sq 3.5550 0.2026
47H-1, 140–145 337.00 362.74 44.30 IW-Sq 3.4917 0.1798
51H-1, 141–146 355.81 381.55 39.73 IW-Sq 3.4569 0.1551
53H-1, 139–144 365.19 390.93 39.05 IW-Sq 3.4682 0.1465
59H-1, 140–145 393.40 419.14 32.93 IW-Sq 3.3693 0.1169
346-U1426B-
1H-1, 0–1 0.00 0.27 2.45 ML 0.0982 0.0105
1H-1, 10–11 0.10 0.37   IW-Rh 0.2842 0.0976
1H-1, 15–16 0.15 0.42   IW-Rh 0.2882 0.1064
1H-1, 20–21 0.20 0.47   IW-Rh 0.2780 0.0977
1H-1, 25–26 0.25 0.52   IW-Rh 0.2302 0.0683
1H-1, 30–31 0.30 0.57   IW-Rh 0.1911 0.0447
1H-1, 40–41 0.40 0.67   IW-Rh 0.1545 0.0219
1H-1, 50–51 0.50 0.77   IW-Rh 0.1816 0.0281
1H-1, 60–61 0.60 0.87 4.19 IW-Rh    
1H-1, 80–81 0.80 1.07   IW-Rh 0.4049 0.0551
1H-1, 100–101 1.00 1.27   IW-Rh 0.6424 0.0961
1H-1, 120–121 1.20 1.47   IW-Rh 0.7043 0.0690
1H-1, 138–139 1.38 1.65   IW-Rh 0.9282 0.0740
1H-1, 145–150 1.45 1.72 7.81 IW-Rh 0.8908 0.1636
1H-2, 10–11 1.60 1.87   IW-Rh 0.9442 0.0926
1H-2, 25–26 1.75 2.02   IW-Rh 1.0529 0.1163
1H-2, 40–41 1.90 2.17 10.12 IW-Rh    
1H-2, 80–81 2.30 2.57   IW-Rh 1.6935 0.1149
1H-2, 100–101 2.50 2.77   IW-Rh 1.8961 0.1291
1H-2, 120–121 2.70 2.97   IW-Rh 2.1820 0.1496
1H-2, 138–139 2.88 3.15   IW-Rh 3.7623 0.3251
1H-2, 145–150 2.95 3.22 16.11 IW-Rh 2.1480 0.2726
1H-3, 20–21 3.20 3.47   IW-Rh 2.9614 0.1857
1H-3, 40–41 3.40 3.67   IW-Rh 3.1334 0.2550
1H-3, 60–61 3.60 3.87   IW-Rh 3.2676 0.2187
1H-3, 138–139 4.38 4.65   IW-Rh 3.8845 0.3600
1H-3, 145–150 4.45 4.72 24.78 IW-Rh 3.9842 0.4696
1H-4, 20–21 4.70 4.97   IW-Rh 3.8527 0.3092
1H-4, 40–41 4.90 5.17   IW-Rh 4.4201 0.8125
1H-4, 80–81 5.30 5.57   IW-Rh 4.3560 0.8952
1H-4, 100–101 5.50 5.77   IW-Rh 4.3010 0.8791
1H-4, 145–150 5.95 6.22 32.35 IW-Rh 4.1569 0.7344
2H-1, 10–11 6.30 6.86   IW-Rh 3.1253 0.2683
2H-1, 60–61 6.80 7.36   IW-Rh 4.0953 0.4454
2H-1, 90–91 7.10 7.66   IW-Rh 4.1155 0.4705
2H-1, 120–121 7.40 7.96   IW-Rh 4.1072 0.4798
2H-1, 145–150 7.65 8.21 39.65 IW-Rh 4.2712 0.6119
2H-2, 10–11 7.80 8.36   IW-Rh 4.1450 0.5039
2H-2, 25–26 7.95 8.51 40.68 IW-Rh    
2H-2, 85–86 8.55 9.11 41.69 IW-Rh    
2H-2, 145–150 9.15 9.71 42.11 IW-Rh    
2H-3, 10–11 9.30 9.86   IW-Rh 4.2040 0.5484
2H-3, 40–41 9.60 10.16 43.29 IW-Rh    
2H-3, 55–56 9.75 10.31 44.49 IW-Rh    
2H-3, 70–71 9.90 10.46 44.60 IW-Rh    
2H-3, 85–86 10.05 10.61 44.02 IW-Rh    
2H-3, 100–101 10.20 10.76 43.76 IW-Rh    
2H-3, 115–116 10.35 10.91 44.26 IW-Rh    
2H-3, 145–150 10.65 11.21 43.98 IW-Rh 4.2058 0.6452
2H-4, 40–41 11.10 11.66 45.65 IW-Rh    
2H-4, 85–86 11.55 12.11 45.55 IW-Rh    
2H-4, 115–116 11.85 12.41 46.43 IW-Rh    
2H-4, 130–131 12.00 12.56 46.68 IW-Rh    
2H-4, 145–150 12.15 12.71 44.67 IW-Rh 4.0560 0.6761
2H-5, 55–56 12.75 13.31   IW-Rh 4.1684 0.6149
2H-5, 70–71 12.90 13.46   IW-Rh 4.1412 0.6150
2H-5, 100–101 13.20 13.76 49.86 IW-Rh 4.1656 0.6113
2H-5, 145–150 13.65 14.21 48.16 IW-Rh 4.2060 0.6783
2H-6, 40–41 14.10 14.66   IW-Rh 4.1690 0.6251
2H-6, 70–71 14.40 14.96   IW-Rh 4.1990 0.6349
2H-6, 140–145 15.10 15.66 49.40 IW-Rh    
3H-1, 40–41 16.10 17.49   IW-Rh 4.3138 0.9414
3H-1, 60–61 16.30 17.69   IW-Rh 4.2210 0.6443
3H-1, 120–121 16.90 18.29   IW-Rh 4.7920 1.9994
3H-1, 145–150 17.15 18.54 50.54 IW-Rh 4.2426 0.7437
3H-2, 145–150 18.65 20.04 52.50 IW-Rh    
3H-3, 142–147 20.12 21.51 54.24 IW-Rh 4.0456 0.7019
3H-4, 145–150 21.65 23.04 56.56 IW-Rh 4.0839 0.6948
True replicate 21.65 23.04     4.0646 0.6821
3H-5, 145–150 23.15 24.54 58.89 IW-Rh 4.0894 0.7132
3H-6, 140–145 24.60 25.99 60.27 IW-Rh    
4H-1, 145–150 26.65 29.43 61.53 IW-Rh 4.0623 0.6785
True replicate 26.65 29.43     3.9687 0.6616
4H-2, 145–150 28.15 30.93 62.13 IW-Rh    
4H-3, 145–150 29.65 32.43 62.91 IW-Rh 3.7409 0.6364
4H-4, 80–81 30.50 33.28   IW-Rh 4.0525 0.6267
4H-4, 130–131 31.00 33.78   IW-Rh 3.8423 0.5593
4H-4, 145–150 31.15 33.93 65.90 IW-Rh    
4H-5, 145–150 32.65 35.43 67.14 IW-Rh 3.7041 0.6031
True replicate 32.65 35.43     3.6736 0.5792
4H-6, 136–141 34.06 36.84 68.33 IW-Rh 3.6622 0.5156
4H-7, 62–67 34.82 37.60 65.41 IW-Rh 3.5275 0.4988

ML = mudline, IW-Sq = interstitial water from whole-round squeezing, IW-Rh = interstitial water from Rhizons.

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