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Table T16. Interstitial water data from squeezed whole-round samples, Hole U1336B. (See table notes.)

Core, section,
interval (cm) 		Depth
CSF (m) 		pH Alkalinity
(mM) 		Cl–
(mM) 		Na+
(mM) 		SO42–
(mM) 		HPO4–
(µM) 		H4SiO4
(µM) 		Mn2+
(µM) 		Fe2+
(µM) 		Ca2+
(mM) 		Mg2+
(mM) 		B
(µM) 		Sr2+
(µM) 		Ba2+
(µM) 		Li+
(µM) 		K+
(mM)
320-U1336B-
2H-2, 145–150 4.75 7.71 2.39 556 ND 26.2 1.65 329 BDL BDL 10.1 50.0 422.5 83.7 BDL 23.88 ND
2H-5, 145–150 9.25 7.96 2.71 557 ND 25.9 4.77 325 BDL BDL 10.6 49.0 439.5 93.8 BDL 23.22 ND
3H-2, 145–150 14.25 7.73 2.66 561 ND 26.9 0.91 426 BDL BDL 11.6 49.9 455.0 109.5 BDL 23.16 ND
3H-5, 145–150 18.75 7.75 2.69 559 488 26.0 0.43 514 BDL BDL 11.7 48.1 461.2 115.6 BDL 22.93 11.4
4H-2, 145–150 23.75 7.78 2.72 563 492 25.4 0.44 471 0.18 BDL 12.7 46.7 454.9 121.9 BDL 21.54 10.7
4H-5, 145–150 28.25 7.74 2.84 566 491 26.8 0.39 564 1.11 BDL 13.7 48.1 452.1 134.6 BDL 22.33 11.9
5H-2, 145–150 33.25 7.76 2.79 568 496 25.1 0.42 488 2.91 BDL 13.8 45.9 433.4 142.9 0.51 21.29 10.3
5H-5, 145–150 37.75 7.69 2.82 570 496 25.7 0.43 541 4.66 BDL 14.4 46.7 446.8 145.8 BDL 20.18 10.8
6H-2, 145–150 42.75 7.62 2.75 567 495 24.9 0.42 536 5.53 BDL 14.5 44.9 438.2 154.5 BDL 19.81 10.4
6H-5, 145–150 47.25 7.61 2.60 567 491 27.3 0.40 594 5.38 BDL 15.8 47.6 436.8 157.6 BDL 19.40 11.2
7H-3, 145–150 53.75 7.70 2.70 567 492 25.5 0.25 574 6.23 BDL 15.8 45.6 423.5 165.3 BDL 18.88 10.5
8H-3, 140–150 63.20 7.76 2.63 565 493 24.6 0.29 607 6.29 BDL 16.0 43.5 430.5 176.9 BDL 17.50 9.9
9H-3, 140–150 72.70 7.45 2.63 565 490 24.7 0.32 633 5.82 BDL 16.9 43.7 419.6 186.1 BDL 16.98 9.8
10H-4, 140–150 83.70 7.59 2.67 566 488 26.0 0.29 673 4.37 BDL 18.5 45.1 418.0 201.0 BDL 16.46 10.1
11H-4, 140–150 93.20 7.61 2.73 567 493 24.0 0.27 687 3.17 BDL 18.3 41.8 406.5 211.4 BDL 16.54 9.3
12H-4, 140–150 102.70 7.59 2.30 568 490 25.0 0.30 724 2.74 4.36 19.4 43.3 427.9 220.5 BDL 15.49 10.0
13H-4, 140–150 112.20 7.78 2.66 567 492 24.0 0.35 730 2.34 8.60 19.5 41.1 430.2 231.1 BDL 14.29 9.4
14H-4, 140–150 121.70 7.45 2.29 568 492 24.1 BDL 695 2.12 9.92 20.1 40.8 417.0 236.5 BDL 14.06 9.3
15H-4, 140–150 131.20 7.44 1.73 566 494 23.9 BDL 671 1.61 18.43 26.4 32.5 404.8 342.2 BDL 8.91 8.6
18H-4, 140–150 151.30 7.08 1.34 569 497 23.1 BDL 818 1.75 14.88 28.4 29.8 402.8 390.2 BDL 7.88 8.2
19H-3, 140–150 159.30 7.52 1.24 571 499 22.7 BDL 853 1.77 11.74 28.7 29.2 404.5 404.2 BDL 8.13 8.2
20H-3, 140–150 168.80 7.24 1.01 569 498 22.2 BDL 800 1.76 17.08 28.9 28.4 396.7 417.8 BDL 8.84 7.9

Notes: ND = not determined. BDL = below detection limit (HPO4– = 0.2 µM, Mn2+ = 0.1 µM, Fe2+ = 0.6 µM, B = 4 µM, Sr2+ = 0.8 µM, Ba2+ = 0.5 µM, Li+ = 1.8 µM) calculated as three times the standard deviation of multiple measures of a blank. H4SiO4 values measured by different techniques during Expeditions 320 and 321 disagree significantly, especially for low values. Therefore, caution should be used concerning the H4SiO4 data and comparison between the different expeditions.

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