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Table T19. Interstitial water constituents, Hole U1404A.

Core, section,
interval (cm) 		Depth
(mbsf) 		pH Alkalinity
(mM) 		Ammonium
(μm) 		Salinity Cl–
(mM)* 		Cl–
(mM)† 		Na+
(mM) 		SO42–
(mM) 		HPO4–
(μm) 		Mn2+
(μm) 		Fe2+
(μm) 		Ca2+
(mM) 		Mg2+
(mM) 		Sr2+
(μm) 		K+
(mM) 		Sr/Ca Mg/Ca
342-U1404A-
2H-6, 104–109 12.69 7.31 3.78 6 37 560 561 476 28.0 BDL BDL BDL 13.2 52.8 87.2 13.3 6.6 4.0
3H-5, 115–120 21.35 7.41 4.51 10 37 560 555 470 26.7 BDL 15.7 BDL 14.4 51.6 90.4 14.8 6.3 3.6
5H-4, 145–150 39.15 7.53 5.47 21 38 564 554 478 27.5 BDL 33.4 BDL 16.0 50.4 97.6 16.6 6.1 3.2
6H-4, 115–120 48.35 7.40 5.76 26 37 ND 553 469 27.1 BDL 44.9 2.9 16.6 49.4 102.5 16.2 6.2 3.0
7H-4, 145–150 58.15 7.31 5.96 36 38 ND 559 474 27.7 BDL 49.7 BDL 17.3 49.2 102.1 16.8 5.9 2.8
8H-6, 125–130 70.45 7.25 6.17 59 37 566 548 464 24.6 BDL 59.1 0.7 17.9 47.8 106.3 16.5 6.0 2.7
9H-6, 145–150 80.15 7.33 6.45 53 38 567 558 473 24.8 BDL 64.0 0.0 18.8 48.4 106.9 16.5 5.7 2.6
10H-6, 145–150 89.65 7.47 6.78 64 37 556 553 470 25.5 BDL 68.0 3.0 19.4 47.8 111.9 16.1 5.8 2.5
12H-6, 145–150 104.95 7.38 7.39 91 38 544 541 460 26.5 BDL 81.8 0.4 20.4 45.6 115.6 12.8 5.7 2.2
13H-5, 145–150 112.18 7.43 7.59 89 38 549 553 469 25.4 BDL 87.7 2.0 21.4 46.2 120.7 11.4 5.7 2.2
14H-6, 95–100 123.65 7.39 7.59 90 38 558 570 470 25.2 BDL ND ND 22.1 46.3 ND 13.4 ND 2.1
15H-6, 146–151 133.48 7.35 8.08 102 38 550 569 478 25.2 BDL 97.3 1.7 23.3 46.3 129.0 14.8 5.5 2.0
16H-6, 115–120 142.85 7.28 8.10 113 38 553 558 469 23.6 BDL 108.4 14.3 23.6 45.2 134.0 13.9 5.7 1.9
17H-6, 140–145 152.44 7.28 8.07 116 38 564 558 470 25.9 BDL 108.7 0.4 24.3 45.6 139.5 11.1 5.7 1.9
18H-6, 116–121 161.92 7.12 8.20 117 38 563 560 473 23.1 BDL 115.3 5.9 25.3 46.3 142.4 10.7 5.6 1.8
19H-6, 117–122 171.41 7.11 8.64 115 37 559 543 456 22.1 BDL 120.9 7.0 26.3 45.5 144.1 9.4 5.5 1.7
20H-6, 115–120 180.85 7.05 8.58 105 37 553 552 451 24.1 BDL 127.3 BDL 26.9 47.9 147.9 8.0 5.5 1.8
21H-6, 145–150 190.65 7.05 8.62 113 37 553 549 450 24.8 BDL 137.7 5.5 27.2 46.1 149.5 8.0 5.5 1.7
22H-1, 140–150 192.60 7.04 8.60 120 37 554 543 445 22.5 BDL 135.7 0.2 27.1 45.9 147.4 7.9 5.4 1.7
23H-6, 90–100 203.30 6.75 7.25 145 37 570 561 469 23.4 BDL 139.2 7.5 26.8 42.3 146.4 11.2 5.5 1.6
24H-5, 140–150 211.70 6.87 7.18 123 36 524 561 452 23.4 BDL 131.0 BDL 28.3 45.0 155.1 8.5 5.5 1.6
25H-4, 140–150 218.70 6.86 7.14 135 37 539 550 451 20.3 BDL 135.8 0.0 28.6 43.6 161.7 8.9 5.7 1.5
26H-5, 0–10 226.50 7.67 9.71 126 36 531 532 435 21.3 BDL 112.2 BDL 30.2 46.0 126.6 7.5 4.2 1.5
27H-4, 140–150 234.50 7.59 9.63 141 35 520 523 429 22.1 BDL ND ND 30.2 44.1 ND 7.9 ND 1.5
28H-4, 140–150 242.40 7.37 6.04 130 35 518 522 423 23.2 BDL ND ND 30.2 44.0 ND 6.2 ND 1.5
29H-5, 140–150 251.50 7.36 10.07 491 37 546 553 442 22.0 BDL 141.0 BDL 31.4 40.5 174.3 8.5 5.5 1.3
31H-3, 140–150 264.10 7.08 6.36 153 36 533 532 419 19.2 BDL 127.7 BDL 31.5 42.0 184.1 6.3 5.8 1.3
33X-5, 140–150 278.40 7.28 8.77 159 35 520 517 417 17.3 BDL 134.9 BDL 31.4 39.8 179.9 7.1 5.7 1.3
34X-6, 90–100 289.10 7.39 9.52 176 36 534 541 437 18.3 BDL 145.3 BDL 33.0 39.9 184.8 7.6 5.6 1.2
35X-1, 140–150 290.80 7.40 9.30 179 37 535 549 446 19.1 BDL ND ND 32.8 39.7 ND 7.8 ND 1.2

* = manual titration. † = ion chromatograph. BDL = below detection limit (HPO4– = 0.2 µM, Mn2+ = 0.1 µM, and Fe2+ = 0.6 µM) calculated as three times the standard deviation of multiple measures of a blank. ND = not determined.

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