Table T4. Germanium and silica composition of pore waters in gravity core sediments from the southern EPR (EXCO) and Cocos Ridge (TicoFlux) flanks. (See table notes.)
Cruise, core, location |
Depth (mbsf) |
Si (μmol/kg) |
Ge (pmol/kg) |
Ge/Si (μmol/mol) |
---|---|---|---|---|
TicoFlux- | ||||
GC50; 9°5.045′N, 87°5.93′W | ||||
0.00 | 180 | 130 | 0.72 | |
0.13 | 222 | 268 | 1.21 | |
0.27 | 428 | 1332 | 3.11 | |
0.39 | 290 | 366 | 1.26 | |
0.59 | 367 | 746 | 2.04 | |
0.70 | 469 | 1280 | 2.73 | |
1.25 | 324 | 859 | 2.65 | |
1.33 | 224 | 369 | 1.65 | |
GC40; 9°5.045′N, 87°5.93′W | ||||
0.00 | 180 | 130 | 0.72 | |
0.07 | 450 | 919 | 2.04 | |
0.12 | 435 | 906 | 2.08 | |
0.24 | 324 | 405 | 1.25 | |
0.45 | 257 | 419 | 1.63 | |
0.70 | 217 | 608 | 2.81 | |
0.91 | 403 | 695 | 1.72 | |
1.13 | 457 | 991 | 2.17 | |
1.44 | 272 | 475 | 1.75 | |
1.64 | 217 | 224 | 1.04 | |
2.03 | 418 | 1680 | 4.02 | |
EXCO- | ||||
GC15; 14°16.47′S, 112°19.44′W | ||||
0.00 | 180 | 127 | 0.71 | |
0.08 | 188 | 113 | 0.60 | |
0.22 | 192 | 80 | 0.42 | |
0.54 | 198 | 83 | 0.42 | |
0.86 | 197 | 77 | 0.39 | |
1.44 | 188 | 78 | 0.42 | |
2.42 | 174 | 70 | 0.40 | |
2.99 | 166 | 72 | 0.44 | |
GC17; 14°16.88′S, 112°19.84′W | ||||
0.00 | 180 | 127 | 0.71 | |
0.04 | 202 | 105 | 0.52 | |
0.19 | 214 | 80 | 0.38 | |
0.51 | 211 | 58 | 0.28 | |
0.95 | 213 | 60 | 0.28 | |
1.49 | 209 | 81 | 0.39 | |
2.25 | 181 | 64 | 0.35 | |
2.79 | 183 | 88 | 0.48 | |
GC19; 14°16.54′S, 112°19.44′W | ||||
0.00 | 180 | 127 | 0.71 | |
0.11 | 178 | 56 | 0.31 | |
0.27 | 176 | 46 | 0.26 | |
0.55 | 187 | 86 | 0.46 | |
1.01 | 187 | 57 | 0.31 | |
1.44 | 182 | 63 | 0.34 | |
2.12 | 177 | 108 | 0.61 | |
2.37 | 180 | 116 | 0.64 |
Notes: The labels give the core number and latitude-longitude coordinates for the samples. Errors for Ge and Ge/Si are given in Table T1.
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