"Table 8. Chemical composition of pore-fluids, Site 1038." Sample Depth (mbsf) Cl (mM) Salinity pH Alkalinity (mM) SO4 (mM) NH4 (mM) Ca (mM) Mg (mM) Sr (microM) Li (microM) K (mM) Na (mM) Na/Cl B (microM) H4SiO4 (microM) Seawater 0.0 556 35 2.45 28.0 0.00 10.6 54.0 87 27 10.4 480 0.855 420 170 1038 A "9R1, 10-14" 76.3 345 24 5.1 4.39 17.1 4.6 132 1440 12.8 330 0.956 4820 2600 "11RCC, 5-8" 104.8 420 26 4.7 8.51 22.2 5.0 154 1850 19.4 387 0.921 5730 3160 "**12RCC , 0-3" 114.4 537 18.8 6.54 26.9 38.0 169 960 15.3 469 0.872 1210 1038 B "1R1, 140-150" 1.5 558 38 7.47 2.73 26.8 0.03 10.4 52.5 90 34.0 10.2 490 0.879 457 165 "5R1, 19-29" 34.0 628 40 6.72 9.59 17.2 1.85 37.7 15.2 187 818.0 31.7 535 0.851 1380 846 "6R1, 22-31" 43.8 591 38 29.4 1.32 36.5 32.0 195 494.0 22.1 499 0.844 894 801 "7R2, 51-56" 55.2 558 41 7.63 3.50 52.2 0.22 38.8 50.9 203 77.0 16.5 459 0.823 451 309 "8RCC, 3-15" 72.0 574 40 7.39 7.29 52.0 0.63 46.0 43.5 215 230.0 18.5 482 0.839 661 341 "11R1, 3-8" 91.7 548 37 38.4 0.55 29.9 45.4 156 185.0 15.5 465 0.849 593 333 "12R1, 0-5" 101.2 554 36 32.0 0.46 26.5 49.2 146 180.0 17.4 454 0.819 650 571 13R1. 60-70 111.2 563 34 7.27 7.53 10.8 0.50 40.2 24.1 111 184 18.6 454 0.807 502 1174 1038 C "3R1, 85-95" 23.4 648 41 7.24 3.78 2.3 5.34 36.0 3.2 227 1640 9.3 555 0.857 2610 397 "**4R1, 51-61" 32.7 573 36 6.95 6.10 8.3 4.54 25.4 16.5 187 1140 13.3 501 0.873 2030 463 1038D "1R1, 136-146" 1.4 671 38 0.8 5.82 37.3 3.5 216 1920 22.3 564 0.841 1950 306 "2R1, 58-61" 15.2 629 37 2.7 4.83 34.0 2.7 217 1440 12.7 519 0.824 2940 370 "3R1, 35-40" 32.0 618 36 2.1 5.38 31.3 4.0 226 1440 13.3 515 0.834 2520 672 "4RCC, 5-10" 42.0 614 38 1.4 3.73 31.5 2.5 231 1420 22.0 506 0.825 3590 884 1038E "4R-2, 45-55" 31.4 559 32 7.36 1.2 3.53 29.1 5.9 384 279 3.4 471 0.842 3840 468 1038F "2R1, 100-110" 10.60 706 6.62 26.37 2.6 5.83 25.1 23.4 728 2400 10.8 644 0.912 2840 467 "3R2, 140-150" 22.10 729 3.8 6.6 34.6 13.2 560 2530 18.3 649 0.890 2740 449 " 4RCC, 0-8" 39.00 786 6.74 14.99 1.7 6.58 48.6 6.3 530 2700 19.5 684 0.870 2980 700 1038G "3H2, 140-150" 23.0 679 40 6.83 27.68 0.9 7.56 15.0 15.0 837 2180 8.3 617 0.908 3780 509 "3H5, 140-150" 27.5 739 45 6.75 21.82 1.1 7.85 23.6 12.9 743 3000 11.8 651 0.880 3940 591 "4H5, 38-46" 37.5 776 46 6.33 17.27 1.2 7.76 34.0 8.6 652 3500 16.9 689 0.888 3450 704 "5H2, 140-150" 43.0 813 47 6.64 10.19 0.7 6.42 53.2 3.9 538 2800 18.1 689 0.847 3780 935 "6H1, 140-150" 53.0 813 48 6.61 9.87 1.7 5.17 58.4 3.0 468 2520 24.0 618 0.760 3870 1034 "**7X2, 140-150" 63.5 748 45 7.34 6.06 5.3 6.80 51.7 7.8 260 1570 24.2 621 0.831 3160 1277 "8XCC, 3-9" 79.5 769 48 1.2 7.08 55.0 0.8 287 1600 40.3 625 0.812 3080 677 "10XCC, 26-34" 98.8 732 42 7.26 7.94 1.8 7.96 43.0 0.7 265 1420 42.5 602 0.822 3610 1570 1038H "1X1, 140-150" 1.5 556 37 7.51 3.26 28.3 0.16 13.0 55.6 117 44 10.5 499 0.898 408 461 "1X2, 140-150" 3.0 564 38 7.53 6.08 30.9 0.46 19.3 55.1 148 124 14.1 493 0.874 554 996 "2X1, 140-150" 12.4 565 34 7.50 5.58 31.0 0.39 18.4 48.4 140 110 12.7 509 0.900 528 977 "3X2, 140-150" 24.5 551 35 7.66 2.64 29.3 0.05 11.1 45.7 111 24 9.7 490 0.890 264 416 "4X3, 140-150" 34.3 640 38 5.2 4.09 40.2 5.3 409 1550 10.8 569 0.889 2380 879 "5X4, 140-150" 45.1 744 43 6.53 8.77 1.5 5.45 41.9 3.2 500 2330 17.0 638 0.857 3200 1450 "8XCC, 19-28" 77.0 464 30 1.4 5.98 25.9 5.0 178 1890 16.7 425 0.915 6440 2780 "14XCC, 29-35" 135.1 708 0.4 8.47 38.7 3.2 251 3190 40.7 587 0.830 3580 1550 "16XCC, 17-21" 173.5 722 0.8 30.7 3.2 441 6220 46.3 615 0.852 6080 2520 "**20XCC, 15-19" 192.7 547 25.7 1.01 16.7 47.1 116 322 30.2 580 205 1038I "1X1, 140-150" 1.5 556 37 7.63 4.78 27.3 0.14 10.6 51.4 103 26 11.8 471 0.847 568 662 "1X3, 140-150" 4.5 555 38 7.52 6.52 26.0 0.41 10.7 49.0 98 20 11.2 490 0.883 712 592 "2X2, 140-150" 12.3 555 36 7.63 47.39 0.7 3.40 10.9 40.5 148 29 8.2 489 0.880 1050 1190 "3H2, 140-150" 20.3 564 35 7.25 45.82 0.6 4.19 10.5 40.8 156 39 9.2 488 0.866 1090 1350 "3H4, 140-150" 23.3 560 37 7.65 38.90 2.3 4.61 9.5 38.0 159 44 9.3 489 0.873 1040 1220 "4H3, 140-150" 31.3 572 37 7.58 46.02 0.8 5.01 17.6 29.3 196 180 9.3 506 0.885 1150 1390 "5H3, 140-150" 40.8 560 35 6.65 28.24 0.1 4.48 15.2 19.6 188 183 13.2 506 0.903 2250 2410 "6H3, 140-150" 50.3 573 36 7.24 22.10 0.7 3.74 35.7 12.3 175 403 5.0 495 0.864 2460 1000 "7H3, 140-150" 59.8 571 36 7.12 23.78 0.7 3.60 39.2 13.2 215 587 4.5 495 0.867 2670 756 "8X3, 140-150" 69.2 553 35 6.79 29.13 3.0 3.52 29.3 10.5 294 504 4.1 506 0.915 2790 740 "9X2, 140-150" 77.4 509 34 6.79 30.00 0.9 4.27 32.7 7.2 319 716 4.4 439 0.862 4480 1210 "**11X3, 140-150" 98.1 523 35 7.11 15.50 24.0 0.81 12.2 45.0 136 53 10.8 444 0.849 731 732 "17X1, 119-129" 152.0 476 31 0.4 6.54 17.9 2.7 244 3690 15.4 460 0.966 9670 1490 "18XCC, 17-24" 170.3 700 0.2 6.87 40.6 5.4 298 2790 37.5 591 0.844 5840 1640 "19XCC, 23-28" 180.0 688 42 5.2 8.50 39.7 8.7 382 2960 25.6 598 0.869 3870 1100 "20XCC, 29-34" 189.6 546 0.0 8.73 10.0 4.2 413 3560 19.5 541 0.991 6340 1060 "21X1, 140-150" 191.2 462 32 6.72 48.85 5.3 5.92 13.7 5.7 435 1800 13.3 456 0.988 7670 1800 "23XCC, 24-29" 218.5 491 2.3 4.07 15.7 3.6 516 11.7 478 0.974 5720 1360 "28X2, 140-150" 260.0 510 0.8 3.64 23.4 4.1 402 689 5.4 510 1.000 5400 1060 "29X3, 140-150" 271.2 527 49.10 0.7 3.43 20.4 5.6 432 681 6.0 526 0.999 4680 1010 "30X1, 140-150" 278.0 531 1.4 4.74 26.3 6.4 243 1390 7.9 488 0.918 5590 2490 "31X2, 140-150" 287.6 508 40.24 2.7 3.70 21.4 6.7 319 674 4.7 484 0.953 5530 936 "32X1, 140-150" 297.2 530 2.5 4.01 22.5 6.9 307 628 4.7 489 0.923 4300 1070 "33X3, 140-150" 309.8 545 33.88 0.5 4.11 24.8 9.5 285 566 4.1 493 0.904 4040 1050 "34X3, 140-150" 319.4 544 30.90 2.0 3.95 25.6 12.2 277 484 4.6 491 0.903 4200 944 "35X2, 140-150" 327.5 564 26.30 2.0 4.40 27.8 10.7 272 584 5.0 498 0.883 3780 1000 "36X1, 140-150" 335.6 550 29.70 3.5 4.19 26.7 10.8 273 539 4.3 498 0.905 4170 922 "37X4, 140-150" 349.7 552 28.20 2.6 4.61 26.9 10.1 272 540 4.5 493 0.894 3760 956 "38X1, 140-150" 354.8 552 36.30 1.7 4.17 27.2 9.0 304 601 4.0 502 0.909 4050 1000 "39X4, 140-150" 368.9 547 2.4 26.3 9.4 314 569 4.1 497 0.909 4490 936 "40X3, 140-150" 377.0 544 2.5 4.79 23.5 9.1 333 578 5.3 505 0.928 4780 "41X2, 140-150" 385.1 536 0.8 4.01 22.3 5.8 352 819 4.4 519 0.967 5580 "42X3, 140-150" 396.3 518 0.5 3.76 18.8 5.5 377 854 4.8 511 0.985 5730 "43X1, 90-100" 402.4 509 0.9 19.7 4.4 352 826 5.4 502 0.987 6390 ** = contaminated