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Table T11. Chemistry of six mud batches used during drilling, Expedition 343.

 
Chlorinity
(mM)
Br–
(mM)
SO42–
(mM)
Na+
(mM)
K+
(mM)
Ca2+
(mM)
B
(µM)
Ba
(µM)
Fe
(µM)
Li
(µM)
Mn
(µM)
Si
(µM)
Sr
(µM)
V
(nM)
Cu
(nM)
Mud batch 362 0.55 19.37 379 5.64 12.31 111 0.40 0.43 37.33 0.29 299 68.16 34.28 10.04
Mud batch 367 0.57 19.78 377 5.68 12.42 111 0.45 0.37 37.21 0.25 261 70.30 34.86 13.48
Mud batch 342 0.53 18.59 354 5.27 14.45 124 0.57 0.52 33.32 0.21 222 60.50 29.71 11.90
Mud batch 361 0.56 19.42 380 5.65 12.17 88 0.41 0.31 34.55 0.18 505 68.37 37.94 8.73
Mud batch 294 0.45 16.12 301 4.22 11.59 59 0.39 0.40 33.01 0.18 1271 63.42 66.76 15.27
Mud batch 332 0.50 18.16 337 5.02 14.50 144 0.85 0.40 37.03 0.26 201 68.95 38.74 5.43
Average concentration: 343 0.53 18.57 354 5.25 12.91 106 0.51 0.41 35.41 0.23 460 66.62 40.38 10.81

 
Zn
(nM)
Rb
(nM)
Mo
(nM)
Cs
(nM)
Pb
(nM)
U
(nM)
Mud batch 50.00 771 445 12.37 0.99 ND
Mud batch 49.71 801 449 13.44 1.21 ND
Mud batch 36.26 719 453 10.64 0.82 ND
Mud batch 35.02 756 425 12.03 0.83 ND
Mud batch 27.17 619 448 9.66 0.97 ND
Mud batch 39.26 720 529 12.13 1.05 0.21
Average concentration: 39.57 731 458 11.71 0.98 0.21

ND = not determined.

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