Hole:
|
1204A | 1204B | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Core, section: Interval (cm):
Piece:
|
7R-3 36-37 3 |
9R-1 96-97 12B |
9R-2 50-51 5 |
10R-2 77-79 5 |
10R-3 54-56 2 |
2R-2 48-50 1B |
2R-4 87-89 2B |
4R-3 29-31 5 |
6R-4 21-24 4 |
7R-2 66-69 10 |
7R-3 42-44 5A |
7R-3 140-142 17 |
8R-3 53-55 8 |
9R-2 22-24 1B |
Unit/Subunit:
|
2
|
2
|
2
|
2
|
2
|
1
|
1
|
2a
|
2a
|
2a
|
2a
|
2b
|
2b
|
2b
|
Rock type:
|
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Diabase
(massive) |
Diabase
(massive) |
Diabase
(massive) |
Depth (mbsf):
|
822.68
|
839.56
|
840.60
|
850.54
|
851.45
|
822.08
|
824.67
|
842.89
|
863.24
|
870.33
|
871.6
|
872.57
|
881.29
|
887.51
|
Major element oxide (wt%): | ||||||||||||||
SiO2 | 38.39 | 43.76 | 43.76 | 45.62 | 45.37 | 43.60 | 45.44 | 43.57 | 39.86 | 41.38 | 44.34 | 43.67 | 45.98 | 45.64 |
TiO2 | 2.03 | 2.15 | 1.98 | 2.31 | 2.12 | 2.30 | 2.54 | 2.37 | 2.26 | 2.25 | 2.32 | 2.26 | 1.95 | 2.17 |
Al2O3 | 13.63 | 14.89 | 14.75 | 14.69 | 15.36 | 16.33 | 17.44 | 16.89 | 13.81 | 14.43 | 14.90 | 14.65 | 15.16 | 15.23 |
Fe2O3 | 10.51 | 16.07 | 12.74 | 14.46 | 13.84 | 12.52 | 15.44 | 15.02 | 11.43 | 12.15 | 12.30 | 11.20 | 14.07 | 13.77 |
MnO | 0.14 | 0.20 | 0.18 | 0.18 | 0.14 | 0.14 | 0.19 | 0.23 | 0.12 | 0.16 | 0.20 | 0.18 | 0.17 | 0.15 |
MgO | 3.21 | 4.62 | 4.97 | 6.80 | 9.31 | 2.31 | 2.19 | 2.10 | 2.91 | 3.43 | 4.98 | 4.49 | 7.07 | 8.55 |
CaO | 19.41 | 11.69 | 12.81 | 10.03 | 7.43 | 12.86 | 9.72 | 9.58 | 16.70 | 15.04 | 13.34 | 15.46 | 9.00 | 9.08 |
Na2O | 2.82 | 3.07 | 2.96 | 3.05 | 3.16 | 3.32 | 3.47 | 2.83 | 2.95 | 3.14 | 2.98 | 2.95 | 2.62 | 3.15 |
K2O | 0.95 | 0.84 | 1.02 | 0.96 | 0.41 | 1.43 | 1.20 | 1.57 | 0.86 | 1.05 | 1.30 | 1.04 | 1.24 | 0.38 |
P2O5 | 0.36 | 0.30 | 0.24 | 0.29 | 0.25 | 0.28 | 0.74 | 1.92 | 0.37 | 0.42 | 0.30 | 0.26 | 0.21 | 0.24 |
Totals: | 91.43 | 97.60 | 95.41 | 98.40 | 97.39 | 95.10 | 98.37 | 96.08 | 91.27 | 93.45 | 96.96 | 96.15 | 97.46 | 98.34 |
LOI | 9.48 | 3.63 | 4.98 | 3.15 | 3.62 | 3.75 | 1.93 | 4.17 | 7.81 | 5.56 | 4.25 | 5.69 | 3.20 | 3.19 |
Mg# | 0.40 | 0.39 | 0.46 | 0.51 | 0.60 | 0.29 | 0.24 | 0.24 | 0.36 | 0.38 | 0.47 | 0.47 | 0.52 | 0.58 |
Trace element (ppm): | ||||||||||||||
Sr | 243 | 244 | 227 | 203 | 198 | 275 | 300 | 333 | 242 | 243 | 248 | 237 | 191 | 200 |
Ba | 68.9 | 82.9 | 70.8 | 81.2 | 61.9 | 83.4 | 118 | 130 | 73.5 | 80.7 | 86.7 | 77.6 | 64.2 | 58.2 |
Sc | 38.6 | 40.3 | 40.9 | 43.8 | 34.8 | 39.0 | 47.4 | 41.7 | 43.2 | 41.9 | 46.0 | 42.3 | 39.4 | 40.9 |
V | 342 | 366 | 335 | 362 | 323 | 347 | 440 | 317 | 359 | 370 | 357 | 362 | 341 | 329 |
Cr | 179 | 158 | 171 | 165 | 158 | 147 | 166 | 156 | 173 | 148 | 166 | 168 | 171 | 175 |
Co | 59.7 | 42.7 | 50.0 | 46.1 | 53.9 | 46.0 | 55.4 | 65.2 | 40.2 | 45.1 | 59.7 | 57.7 | 43.7 | 50.6 |
Ni | 39.8 | 64.1 | 51.5 | 65.9 | 79.6 | 40.8 | 57.7 | 55.4 | 10.1 | 36.7 | 81.4 | 77.8 | 124 | 90.5 |
Cu | 78.1 | 90.3 | 85.3 | 96.4 | 94.7 | 119 | 107 | 120 | 88.0 | 90.9 | 97.5 | 95.8 | 94.1 | 98.4 |
Zn | 93.4 | 108 | 108 | 102 | 110 | 115 | 143 | 144 | 123 | 123 | 155 | 132 | 169 | 108 |
Y | 35.5 | 45.5 | 33.3 | 39.0 | 35.1 | 40.0 | 42.9 | 50.7 | 38.5 | 42.9 | 40.9 | 35.5 | 28.8 | 34.6 |
Zr | 145 | 159 | 134 | 165 | 148 | 161 | 171 | 168 | 160 | 164 | 156 | 143 | 120 | 145 |
Hole:
|
1204B | ||||||
---|---|---|---|---|---|---|---|
Core,
section: Interval (cm):
Piece:
|
10R-3 25-27 2A |
13R-2 10-12 1 |
13R-3 32-34 1A |
14R-2 115-117 5 |
14R-3 68-70 14 |
15R-1 131-133 9 |
17R-1 89-90 13 |
Unit/Subunit:
|
2b
|
2b
|
2b
|
2c
|
2c
|
2c
|
3
|
Rock type:
|
Diabase
(massive) |
Diabase
(massive) |
Diabase
(massive) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Aphyric
basalt (lobed) |
Depth (mbsf):
|
891.80
|
909.87
|
911.48
|
918.17
|
919.20
|
926.91
|
945.79
|
Major element oxide (wt%): | |||||||
SiO2 | 43.43 | 44.97 | 46.47 | 44.75 | 45.48 | 45.20 | 46.06 |
TiO2 | 2.14 | 2.23 | 2.28 | 2.26 | 2.06 | 2.17 | 2.52 |
Al2O3 | 15.41 | 14.62 | 14.29 | 15.73 | 15.70 | 15.33 | 14.01 |
Fe2O3 | 13.31 | 13.79 | 13.93 | 12.98 | 12.21 | 13.60 | 14.23 |
MnO | 0.20 | 0.18 | 0.17 | 0.13 | 0.11 | 0.19 | 0.17 |
MgO | 7.28 | 5.05 | 8.36 | 4.23 | 5.22 | 5.99 | 5.12 |
CaO | 10.42 | 10.83 | 7.01 | 10.07 | 10.42 | 9.29 | 10.49 |
Na2O | 3.02 | 2.85 | 3.15 | 3.13 | 3.03 | 2.90 | 2.88 |
K2O | 0.81 | 1.10 | 0.55 | 1.27 | 1.12 | 1.08 | 1.14 |
P2O5 | 0.26 | 0.29 | 0.26 | 0.78 | 0.37 | 0.33 | 0.34 |
Totals: | 96.29 | 95.92 | 96.49 | 95.33 | 95.73 | 96.06 | 96.95 |
LOI | 3.24 | 4.48 | 3.71 | 4.16 | 4.69 | 3.98 | 2.84 |
Mg# | 0.55 | 0.45 | 0.57 | 0.42 | 0.48 | 0.49 | 0.44 |
Trace element (ppm): | |||||||
Sr | 203 | 214 | 180 | 264 | 237 | 212 | 219 |
Ba | 79.0 | 74.8 | 66.1 | 90.0 | 62.1 | 79.3 | 79.6 |
Sc | 40.5 | 41.9 | 40.9 | 41.1 | 38.2 | 40.5 | 46.3 |
V | 328 | 335 | 339 | 317 | 280 | 333 | 355 |
Cr | 174 | 151 | 152 | 148 | 149 | 169 | 154 |
Co | 60.0 | 46.6 | 47.1 | 48.6 | 41.4 | 57.6 | 70.7 |
Ni | 97.1 | 56.9 | 48.3 | 48.2 | 46.4 | 138 | 64.1 |
Cu | 110 | 94.8 | 97.4 | 88.0 | 82.6 | 90.5 | 99.7 |
Zn | 111 | 120 | 90.5 | 165 | 187 | 178 | 233 |
Y | 34.3 | 39.2 | 33.4 | 39.8 | 32.7 | 35.3 | 43.7 |
Zr | 152 | 153 | 158 | 156 | 142 | 146 | 177 |
Notes: LOI = loss on ignition at 1025°C for 4 hrs. Mg# = MgO/(MgO + FeO), in molar percent, with FeO calculated (as 90% of total Fe). In all figures these data are renormalized to 100% to correct for variable LOI. This table is also available in ASCII.