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Table T14. Absorbance at distinct wavelengths (yellowness) for interstitial water samples at Site U1422.

Core, section,
interval (cm)		 Top depth
CSF-A (m)		 Sample Absorbance 325 nm Absorbance 227 nm
B1 B2 B3 B4 B2 B3 B4
346-U1422A-                  
1H-1, 145−150 1.45 IW-Sq 0.105   0.101     0.527  
1H-4, 145−150 5.95 IW-Sq 0.146            
346-U1422C-                  
1H-1, 0 0 ML   −0.007     0.058    
1H-1, 145−150 1.45 IW-Sq 0.029 0.027     0.209    
1H-3, 135-140 4.35 IW-Sq 0.068            
2H-1, 145−150 6.05 IW-Sq              
2H-4, 145−150 10.55 IW-Sq 0.123            
3H-1, 145−150 15.55 IW-Sq 0.152 0.143     0.941    
3H-4, 145−150 20.05 IW-Sq 0.149            
4H-1, 145−150 25.05 IW-Sq 0.166 0.152 0.154   1.922 1.878  
4H-4, 145−150 29.53 IW-Sq 0.185            
5H-1, 145−150 34.55 IW-Sq     0.176 0.174   2.343 2.366
5H-4, 145−150 38.95 IW-Sq 0.202 0.175     2.105    
6H-1, 145−150 44.05 IW-Sq 0.171 0.173     1.383    
7H-1, 145−150 53.55 IW-Sq 0.176            
7H-4, 145−150 58.05 IW-Sq 0.177            
8H-1, 145−150 63.05 IW-Sq 0.172            
8H-4, 145−150 67.55 IW-Sq 0.150            
9H-1, 145−150 72.55 IW-Sq 0.135            
9H-4, 115−120 76.79 IW-Sq 0.137            
10H-2, 145−150 80.75 IW-Sq 0.138            
10H-5, 145−150 85.31 IW-Sq 0.140     0.143     1.293
11H-1, 121−126 88.51 IW-Sq 0.139            
11H-5, 145−150 94.51 IW-Sq 0.132            
12H-1, 145−150 98.25 IW-Sq 0.140            
12H-4, 145−150 102.85 IW-Sq 0.135            
13H-2, 145−150 109.25 IW-Sq 0.134            
13H-5, 145−150 113.76 IW-Sq 0.140            
14H-1, 145−150 117.25 IW-Sq 0.147 0.135   0.142 1.500   1.476
14H-4, 145−150 121.75 IW-Sq 0.126            
15H-1, 145−150 126.75 IW-Sq 0.121     0.118     1.409
16H-1, 145−150 131.45 IW-Sq 0.125     0.128     1.441
17H-1, 145−150 136.15 IW-Sq 0.120     0.123     1.433
18H-1, 144−149 140.84 IW-Sq 0.121     0.128     1.483
19H-1, 145−150 145.55 IW-Sq 0.125            
20H-1, 145−150 150.25 IW-Sq 0.115            
21H-1, 145−150 154.95 IW-Sq 0.112 0.120     1.457    
22H-1, 145−150 159.65 IW-Sq 0.112 0.113     1.533    
24H-1, 145−150 169.05 IW-Sq 0.117            
25H-1, 145−150 173.75 IW-Sq 0.116            
26H-1, 145−150 178.45 IW-Sq 0.111            
27H-1, 144−149 183.14 IW-Sq 0.114            
28H-1, 145−150 187.85 IW-Sq 0.111 0.124     1.610    
29H-1, 144−149 192.54 IW-Sq 0.103 0.100     1.663    
30H-1, 145−150 197.25 IW-Sq 0.114 0.120     1.638    
31H-1, 145−150 201.95 IW-Sq 0.101 0.102     1.618    
346-U1422E-                  
3H-6, 10 26.60 IW-Rh   0.161     2.012    
3H-6, 30 26.80 IW-Rh   0.149     3.053    
3H-6, 60 27.10 IW-Rh   0.149     3.313    
3H-6, 90 27.40 IW-Rh   0.149     2.444    

IW-Sq = interstitial water from whole-round squeezing, ML = mudline, IW-Rh = interstitial water from Rhizons. Samples were examined in four batches over 23 days to evaluate precision in absorbance measurements in regards to time and dilution. Batch 1 (B1) comprised samples diluted 2:1 with deionized water on Day 1. Batch 2 (B2) comprised samples diluted 2:1 with deionized water on Day 2. Batch 3 (B3) comprised undiluted samples on Day 4. Batch 4 (B4) comprised undiluted samples on Day 23. Measured absorbance values for B1 and B2 have been multiplied by 3.

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