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Table AT4. Analytical results of extracted solution chemistry, Expedition 338.

Extraction method Dilution
ratio 		pH Alkalinity
(mM) 		Chlorinity
(mM) 		Br–
(mM) 		SO42–
(mM) 		PO43–
(µM) 		NH4+
(mM) 		Na+
(mM) 		K+
(mM) 		Mg2+
(mM) 		Ca2+
(mM) 		Li
(µM) 		B
(µM) 		Mn
(µM) 		Fe
(µM) 		Si
(µM)
1-A 1.0 7.25 2.1 574.8 1.14 92 ND 11.6 552 18.7 51.6 29.1 57.9 435 153 0.46 177
2-A 1.5 7.62 NA 589.9 1.10 100 ND 12.1 578 24.0 51.5 35.3 97.3 418 90 0.55 392
2-B 1.5 7.68 3.9 578.9 1.08 96 ND 12.2 577 24.0 53.1 39.7 96.5 444 113 0.56 402
3-A1 38.3 7.83 11.2 693.9 1.21 124 ND 11.8 769 32.5 26.1 34.6 37.7 380 9 1.01 913
3-A2 44.0 8.00 21.6 717.0 1.33 123 ND 21.5 795 35.4 31.0 24.6 38.0 384 14 1.39 807
3-B1 42.0 8.11 5.9 517.5 0.97 88 ND 17.8 562 27.1 22.5 17.8 26.8 257 13 1.44 368
3-B2 38.6 8.04 16.8 488.5 0.94 74 ND 16.0 513 23.0 22.9 17.6 27.0 208 12 1.11 252
3-B3 45.3 8.05 17.9 510.0 0.98 86 ND 19.4 552 26.5 23.4 18.2 20.3 210 12 0.86 300
1-B 1.0 7.35 1.8 415.6 1.68 59 1.39 0.0 397 12.0 40.3 33.0 70.2 522 40 0.93 283
2-C 1.4 7.88 3.0 413.6 1.10 85 2.37 0.1 407 13.8 38.8 36.2 86.9 528 30 1.15 598
2-D 1.4 7.95 6.7 415.0 0.80 65 2.51 0.9 406 14.2 38.8 36.3 84.9 539 31 1.15 592
2-E 1.4 7.95 2.6 412.1 0.81 66 2.75 0.1 405 13.8 38.5 35.7 87.5 535 30 1.05 600
2-F 1.4 7.91 2.7 413.9 0.76 65 2.68 0.1 422 14.4 40.3 37.2 84.7 544 30 1.09 608

NA = not analyzed. ND = not detected.

Extraction method Sr
(µM) 		Ba
(µM) 		V
(nM) 		Cu
(nM) 		Zn
(nM) 		Rb
(nM) 		Mo
(nM) 		Cs
(nM) 		Pb
(nM) 		U
(nM)
1-A 136 1.67 145 2,092 2,180 4,264 6 36 13 87
2-A 150 4.33 224 6,966 4,688 8,450 14 74 86 219
2-B 161 4.21 175 10,623 7,276 7,210 10 62 46 201
3-A1 39 3.38 46,005 123,799 22,943 149,140 1,049 448 58 4,501
3-A2 30 3.69 47,756 74,747 21,325 196,817 830 694 102 4,653
3-B1 21 2.68 33,595 28,144 12,397 172,446 500 1,082 53 2,108
3-B2 20 2.39 25,578 20,105 5,723 148,289 383 908 36 1,634
3-B3 23 3.01 31,042 23,533 8,094 163,601 431 1,027 57 1,974
1-B 114 1.20 100 3,483 921 1,424 2,541 7 8 209
2-C 114 2.33 151 6,739 1,990 1,880 3,298 10 24 411
2-D 114 1.99 159 5,850 774 2,228 3,373 13 13 418
2-E 116 2.10 160 6,305 1,209 1,914 3,281 10 46 416
2-F 114 2.05 157 4,155 1,313 1,903 3,232 10 72 406

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