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Table T1. Trace element and Sr isotope composition of pore water, Site U1301. (See table notes.)

Core, section, interval (cm) Depth (mbsf) HR-ICP-MS 1% dilutions (nmol/kg) HR-ICP-MS standard addition (nmol/kg) 87Sr/ 86Sr Ge (pmol/kg) Ge/Si (μmol/mol) HR-ICP-MS 8-HQ extractions (pmol/kg)
Rb Mo Cs Ba U V Cr Co Ni tCu Zn Y Cd La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
301-U1301C-
1H-1, 130–150 1.3 1720 213 3.15 374 7.2 215.0 12.0 14.4 89 16.3 638 0.709138 803 1.29 333 3,300 92 151 16.5 73 15.7 4.37 23.7 3.04 34.6 5.9 21.7 3.45 27.3 5.52
1H-3, 130–150 4.3 1470 96 3.78 604 4.2 86.5 9.0 31.5 50 11.8 1260 0.708982 828 1.34 424 3,990 47 79.1 9.8 46 10.7 3.11 16.5 2.47 30.1 5.9 23.6 3.97 33.3 6.19
2H-3, 130–150 9.4 1090 52 2.84 1,010 1.0 20.6 2.9 34.8 59 172 1290 0.708641 501 0.89 1050 42,400 159 205 28.1 129 29.1 8.32 45.6 7.08 86.7 15.2 55.4 8.52 66.0 11.5
2H-5, 130–150 12.4 920 27 1.77 910 1.0 17.6 9.3 14.4 111 42.7 1720 0.708470 916 1.74 1140 17,000 188 362 41.8 190 41.6 11.5 70.9 8.41 95.6 16.3 57.1 8.83 67.0 11.6
3H-2, 130–150 17.4 593 1340 1.08 1,030 1.8 20.8 3.5 36.0 290 1.4 680 0.708019 2250 5.42 1070 1,090 283 390 47.0 212 45.9 12.7 66.1 9.50 107 18.1 62.6 9.77 71.4 12.4
3H-4, 130–150 20.4 429 285 2.73 1060 1.2 57.0 4.9 36.3 424 34.7 1070 0.707861 804 1.91 563 183 84 124 13.1 61 13.0 3.96 31.9 3.53 44.5 8.1 31.3 5.23 42.2 7.62
4H-3, 130–150 28.4 320 38 5.05 1,700 2.2 36.2 3.8 1.57 98 1.3 838 0.707738 2400 5.50 1160 1,110 257 346 38.9 178 39.3 11.4 64.4 9.34 109 19.0 68.7 11.3 88.0 16.2
4H-5, 130–150 31.3 NA NA NA NA NA NA NA NA NA NA NA 0.707741 NA NA 1230 1,600 105 115 18.4 97 23.3 7.22 46.1 7.06 91.3 17.3 63.6 10.3 78.4 14.2
5H-2 mud, 0–40 34.6 435 252 1.72 2,690 1.3 24.5 2.3 20.2 75 2.3 220 0.707779 3120 5.84 262 809 25 19.3 2.4 13 3.4 1.09 18.0 1.15 15.3 3.3 14.0 2.53 22.4 4.43
5H-2 sand, 0–40 34.6 420 880 1.75 2,900 1.2 40.6 5.6 47.1 337 10.7 324 0.707750 3010 6.69 771 116 108 197 22.8 104 23.5 8.73 34.2 5.19 66.4 12.0 46.2 7.85 61.6 11.6
6H-3, 110–150 47.7 422 228 3.56 7,160 1.6 35.7 4.6 18.7 73 4.2 238 0.707857 2350 4.15 697 575 1430 120 15.5 75 16.9 5.14 28.6 4.64 61.3 11.8 44.9 7.61 61.6 11.4
6H-5, 110–150 50.4 403 52 3.14 6,381 t1.8 36.1 4.6 13.8 55 2.9 398 0.707871 1890 2.98 926 1,050 1170 120 16.7 83 19.3 6.38 48.0 5.67 71.9 13.6 52.6 9.01 72.4 13.9
7H-3, 110–150 56.9 441 53 2.34 8,620 2.2 29.9 3.0 13.2 44 1.7 429 0.707929 1620 2.45 820 884 467 121 16.9 83 20.0 6.36 70.7 5.30 66.3 12.5 47.9 8.05 65.5 11.9
8H-1, 110–150 63.2 384 49 2.23 11,300 1.3 32.3 3.2 14.9 48 3.5 519 0.708020 1330 1.76 743 513 1610 133 19.8 88 19.0 5.55 36.6 4.72 59.6 10.9 41.4 6.75 55.9 9.69
9H-5, 110–150 78.7 293 99 2.11 11,000 3.9 73.0 2.8 11.7 60 4.1 562 0.708163 3560 12.3 679 1,301 328 111 14.9 70 16.5 4.87 34.5 4.10 53.6 10.1 41.0 7.36 63.4 12.4
10H-1, 110–150 82.2 345 67 2.30 15,400 0.9 18.9 2.5 11.1 75 0.1 313 NA 1700 2.79 865 1,970 222 125 16.7 82 19.5 5.71 43.0 5.39 68.8 13.5 54.2 9.34 74.6 14.8
11H-1, 110–150 91.7 358 72 3.08 17,500 1.4 25.6 2.9 18.2 66 44.8 323 0.708138 2010 3.74 724 1,710 344 155 20.0 93 20.7 6.07 38.6 5.37 66.6 12.3 46.5 7.87 63.2 12.6
13H-1, 110–150 110.7 579 62 1.83 50,200 2.4 21.7 3.3 13.8 76 1.8 295 0.708060 4800 5.41 744 135 215 173 19.0 87 18.0 7.80 41.4 4.62 59.8 11.6 46.6 8.41 68.6 14.9
15H-1, 110–150 179.2 270 383 3.33 2,270 2.7 10.9 0.6 3.26 45 0.3 109 0.707170 1690 6.35 198 163 117 194 22.7 97 19.3 4.24 21.0 2.72 26.8 3.9 12.0 1.69 10.6 1.84
15H-4, 110–150 183.7 228 317 2.31 1,700 1.5 6.8 2.1 4.51 71 2.9 418 0.707138 NA NA 47 438 231 33.1 3.0 12 2.0 0.56 3.4 0.43 3.9 0.7 2.3 0.36 2.4 0.52
16H-2, 110–150 190.2 257 310 2.51 3,020 0.7 4.2 1.1 10.0 53 20.9 274 0.707131 2650 4.52 86 363 72 43.8 3.9 18 2.8 0.76 4.5 0.53 6.2 1.2 4.0 0.59 4.1 0.77
17H-2, 110–150 238.4 244 446 2.31 910 0.7 40.3 0.5 5.55 100 0.5 124 0.707171 950 4.84 29 656 61 14.7 1.9 8 1.3 0.43 2.7 0.25 2.6 0.4 1.6 0.20 1.6 0.30
17H-5, 110–150 242.9 234 486 2.80 1,710 1.0 26.4 0.7 9.43 206 8.7 156 0.707215 655 3.13 18 3,030 53 8.4 0.8 4 0.7 0.19 2.4 0.13 1.3 0.3 0.9 0.12 0.9 0.17
18H-2, 110–150 248.9 229 436 1.20 784 1.7 28.2 0.9 4.17 46 3.3 156 0.707335 454 1.60 41 2,200 68 13.1 1.5 6 1.2 0.33 2.2 0.27 3.0 0.6 2.0 0.27 2.1 0.43
18H-4, 110–150 251.9 229 458 1.19 1,620 2.1 2.6 0.5 14.0 85 0.2 192 0.707414 1430 4.45 41 2,060 77 17.9 1.6 7 1.4 0.38 2.0 0.26 2.8 0.6 2.2 0.28 1.9 0.38
19H-1, 110–150 256.9 364 266 1.07 532 7.4 10.3 0.4 3.40 37 0.6 354 0.707828 422 1.83 228 2,520 107 69.3 7.3 33 6.5 2.00 10.6 1.50 17.6 3.1 10.3 1.42 9.1 1.52
19H-2, 110–150 258.4 252 449 1.06 545 1.6 9.7 0.6 4.90 105 0.8 728 0.707537 584 1.81 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
19H-3, 110–150 259.9 202 430 2.40 741 1.6 12.1 1.0 9.21 95 8.4 359 0.707555 661 2.14 35 5,140 125 16.1 1.4 6 0.9 0.30 1.8 0.22 2.4 0.5 1.7 0.26 2.1 0.32
19H-4, 110–150 261.4 222 435 0.95 800 1.1 3.0 0.7 5.27 133 0.1 290 0.707609 2310 5.50 48 2,830 119 24.9 2.1 9 1.5 0.41 2.6 0.31 3.6 0.7 2.5 0.34 2.5 0.48
301-U1301D-
1H-1, 110–150 121.1 407 21 0.99 25,500 1.4 17.7 2.7 9.71 162 22.9 1070 0.707870 759 2.38 274 5,440 147 50.5 5.7 26 5.4 1.71 19.9 1.39 17.2 3.3 12.3 1.88 15.2 2.64
2H-1, 98–118 130.5 507 66 1.05 6,240 0.6 4.8 3.1 4.68 19 0.5 125 NA 811 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
2H-2, 110–150 131.8 687 115 2.38 6,320 0.8 6.4 2.2 8.49 53 5.2 492 0.707575 1570 4.00 275 1,440 155 82.2 9.7 42 8.2 2.55 13.4 1.72 21.1 3.5 13.0 1.80 14.4 2.35
3H-2, 132–150 141.8 571 146 1.82 3,150 1.2 4.3 4.9 7.11 30 1.8 126 NA 1880 3.27 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
3H-3, 14–54 142.1 659 150 2.65 3,110 1.3 13.6 3.2 5.94 37 4.1 336 0.707478 2520 4.17 326 1,070 196 69.9 7.5 35 6.7 1.96 12.3 1.77 21.1 3.7 13.8 2.03 14.7 2.42
4H-2, 110–150 151.1 680 119 3.09 3,260 1.4 5.6 1.4 5.06 55 3.2 662 0.707464 1120 1.32 300 451 131 67.0 7.1 32 6.3 2.01 10.5 1.39 18.2 3.4 12.4 1.86 13.5 2.41
5H-1, 110–150 159.1 553 167 3.07 2,770 0.5 6.2 1.5 4.40 39 6.2 281 0.707374 2760 3.76 297 326 192 101 10.7 46 8.9 7.47 13.8 1.81 20.6 3.5 12.1 1.71 12.4 1.98
5H-5, 0–40 164.0 531 168 3.07 2,650 0.5 6.1 2.8 5.87 39 56.4 249 0.707372 3300 5.05 279 1,700 115 114 12.2 52 9.5 2.83 14.4 1.90 21.9 3.8 12.7 1.90 13.3 2.30
6H-2, 110–150 170.1 392 238 14.6 2,360 1.1 8.9 10.4 16.6 107 31.3 408 0.707278 2190 4.94 104 7,700 51 33.9 3.5 16 2.7 0.83 5.8 0.57 6.7 1.1 4.0 0.58 4.6 0.76
Error (±)   50 6 0.13 15 0.3 1.4 0.5 0.012 7 1.8 3 0.000016 7% 8% 14 70 5 0.3 0.4 2 0.4 0.13 0.4 0.09 1.3 0.2 0.8 0.15 0.9 0.18
Detection limit   5 1.3 0.12 10 0.01 0.16 0.3 0.05 9 1.5 2       1.1 7 0.6 0.6 0.06 0.2 0.14 0.14 0.19 0.014 0.18 0.02 0.13 0.016 0.09 0.016
Bottom seawater   1296 119 1.85 140 12.3 36.7 4.9 0.07 20 8.1 17 0.7084 115 0.72 236 1,010 45 3.9 5.3 24 4.3 1.26 8.6 1.15 14.2 2.7 9.6 1.47 10.2 1.87

Notes: Errors given for elemental concentrations are 1σ of the bottom seawater concentrations shown. Sr isotopic error is the maximum of the individual standard errors for the sample set. HR-ICP-MS = high-resolution inductively coupled plasma–mass spectrometer. NA = not analyzed.

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