Table T3. Glass and whole-rock major and trace element compositions of basalts, Site 1157.
Hole 1157A | Hole 1157B | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Core, section: | 1W-CC | 1W-CC | 1W-CC | 1W-CC | 2R-1 | 2R-1 | 2R-1 | 2R-1 | 3R-2 | 3R-2 | 3R-2 | 3R-2 | 3R-1 | 3R-1 | 3R-1 | 3R-1 | 4R-1 | 4R-1 | 6R-1 | 6R-1 | 6R-1 | 6R-1 |
Interval (cm): | 13-17 | 13-17 | 13-17 | 13-17 | 86-90 | 86-90 | 86-90 | 86-90 | 19-22 | 19-22 | 19-22 | 19-22 | 62-67 | 62-67 | 62-67 | 62-67 | 136-138 | 136-138 | 43-47 | 43-47 | 43-47 | 43-47 |
Depth (mbsf): | 9.78 | 9.78 | 9.78 | 9.78 | 200.86 | 200.86 | 200.86 | 200.86 | 207.69 | 207.69 | 207.69 | 207.69 | 139.12 | 139.12 | 139.12 | 139.12 | 144.36 | 144.36 | 152.63 | 152.63 | 152.63 | 152.63 |
Piece: | 1 | 1 | 1 | 1 | 16 | 16 | 16 | 16 | 3B | 3B | 3B | 3B | 9 | 9 | 9 | 9 | 17 | 17 | 7 | 7 | 7 | 7 |
Analysis: | ICP | ICP | ICP | ICP | XRF | XRF | ICP | ICP | XRF | XRF | ICP | ICP | XRF | XRF | ICP | ICP | ICP | ICP | XRF | XRF | ICP | ICP |
Rock type: | Glass | Glass | Glass | Glass | Aphyric basalt | Sparsely to moderately plagioclase-olivine phyric basalt | Moderately plagioclase-olivine phyric basalt | Glass | Glass | Moderately plagioclase-olivine phyric basalt | ||||||||||||
Major element (wt%) | ||||||||||||||||||||||
SiO2 | 52.60 | 51.54 | 51.35 | 52.03 | 48.13 | 47.84 | 48.40 | 51.05 | 48.71 | 48.34 | 49.56 | 50.47 | 48.94 | 48.23 | 49.87 | 50.53 | 52.31 | 52.14 | 49.17 | 49.30 | 50.54 | 50.45 |
TiO2 | 1.47 | 1.37 | 1.40 | 1.43 | 1.87 | 1.94 | 1.92 | 2.03 | 1.24 | 1.21 | 1.25 | 1.29 | 1.28 | 1.36 | 1.50 | 1.51 | 1.58 | 1.62 | 1.47 | 1.52 | 1.51 | 1.46 |
Al2O3 | 16.20 | 15.72 | 15.98 | 16.22 | 13.98 | 13.94 | 14.22 | 14.53 | 16.13 | 16.09 | 16.05 | 16.60 | 15.28 | 15.16 | 15.81 | 15.92 | 15.69 | 15.94 | 15.76 | 15.79 | 15.99 | 15.97 |
Fe2O3 | 9.87 | 9.45 | 9.10 | 9.35 | 12.21 | 12.20 | 12.07 | 12.59 | 8.62 | 8.66 | 8.70 | 8.88 | 9.43 | 9.40 | 9.45 | 9.47 | 9.59 | 9.77 | 9.21 | 9.24 | 9.35 | 9.34 |
MnO | 0.16 | 0.15 | 0.16 | 0.16 | 0.17 | 0.18 | 0.18 | 0.20 | 0.13 | 0.13 | 0.14 | 0.15 | 0.11 | 0.12 | 0.15 | 0.15 | 0.16 | 0.16 | 0.14 | 0.15 | 0.16 | 0.15 |
MgO | 8.92 | 8.31 | 8.24 | 8.47 | 7.13 | 7.08 | 7.19 | 7.45 | 7.77 | 7.76 | 7.86 | 8.03 | 7.12 | 7.03 | 7.13 | 7.09 | 7.96 | 7.92 | 7.13 | 7.14 | 7.34 | 7.14 |
CaO | 12.08 | 11.64 | 11.37 | 11.70 | 10.84 | 10.76 | 10.84 | 10.87 | 11.72 | 11.67 | 11.68 | 11.81 | 11.09 | 10.94 | 11.08 | 11.13 | 11.36 | 11.37 | 10.96 | 10.93 | 11.13 | 10.96 |
Na2O | 2.98 | 2.82 | 2.95 | 3.05 | 2.70 | 2.55 | 2.71 | 2.30 | 2.67 | 2.76 | 2.85 | 2.73 | 2.98 | 2.91 | 3.14 | 2.81 | 2.92 | 2.98 | 2.95 | 2.84 | 3.13 | 3.08 |
K2O | 0.13 | 0.11 | 0.13 | 0.13 | 0.26 | 0.26 | 0.26 | 0.22 | 0.24 | 0.24 | 0.25 | 0.23 | 0.20 | 0.21 | 0.24 | 0.23 | 0.10 | 0.10 | 0.24 | 0.25 | 0.25 | 0.25 |
P2O5 | 0.17 | 0.15 | 0.14 | 0.16 | 0.19 | 0.19 | 0.23 | 0.16 | 0.13 | 0.13 | 0.15 | 0.13 | 0.15 | 0.15 | 0.18 | 0.15 | 0.18 | 0.17 | 0.15 | 0.15 | 0.17 | 0.16 |
LOI | 0.65 | 0.65 | 0.95 | 0.95 | 0.87 | 0.87 | 0.77 | 0.77 | ||||||||||||||
CO2 | ||||||||||||||||||||||
H2O | ||||||||||||||||||||||
Total: | 104.59 | 101.26 | 100.82 | 102.70 | 98.13 | 97.59 | 98.03 | 101.40 | 98.31 | 97.94 | 98.49 | 100.32 | 97.45 | 96.38 | 98.54 | 99.01 | 101.83 | 102.18 | 97.95 | 98.08 | 99.59 | 98.98 |
Trace element (ppm) | ||||||||||||||||||||||
Nb | 6 | 6 | 6 | 5 | ||||||||||||||||||
Zr | 105 | 93 | 112 | 101 | 142 | 141 | 125 | 97 | 89 | 86 | 118 | 114 | 108 | 123 | 119 | 120 | 115 | 111 | ||||
Y | 32 | 30 | 34 | 35 | 43 | 47 | 42 | 30 | 29 | 27 | 36 | 37 | 35 | 38 | 37 | 35 | 37 | 35 | ||||
Sr | 132 | 117 | 111 | 126 | 111 | 110 | 111 | 132 | 130 | 132 | 138 | 138 | 135 | 131 | 132 | 139 | 135 | 134 | ||||
Rb | 3 | 3 | 2 | 3 | ||||||||||||||||||
Zn | 101 | 70 | 80 | 80 | ||||||||||||||||||
Cu | 62 | 60 | 56 | 59 | ||||||||||||||||||
Ni | 131 | 122 | 120 | 120 | 124 | 119 | 105 | 162 | 143 | 136 | 148 | 133 | 122 | 113 | 116 | 151 | 139 | 137 | ||||
Cr | 367 | 311 | 349 | 362 | 274 | 253 | 234 | 364 | 347 | 346 | 395 | 340 | 323 | 362 | 356 | 418 | 355 | 348 | ||||
V | 337 | 162 | 249 | 254 | ||||||||||||||||||
Ce | 35 | 18 | 32 | 33 | ||||||||||||||||||
Ba | 10 | 8 | 9 | 10 | 10 | 10 | 10 | 10 | 15 | 15 | 12 | 12 | 13 | 13 | ||||||||
Sc | 35 | 32 | 38 | 35 | 39 | 43 | 30 | 36 | 34 | 38 | 36 | 37 | 36 | 36 |
Notes: CC = core catcher; LOI = loss on ignition. This table is also available in ASCII format.