Leg, hole:
|
118-735B-
|
176-735B- | 118-735B- | 176-735B- | 118-735B- | 176-735B- | 118-735B- | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Core, section: Interval (cm):
|
79R-7
104-109 |
143R-6
1-6 |
143R-6
1-6 |
12R-1
50-55 |
19R-1
140-146 |
158R-1
69-75 |
145R-5
49-53 |
142R-1
76-80 |
36R-1
111-117 |
15R-2
128-130 |
30R-1
50-56 |
144R-6
108-113 |
190R-6
42-48 |
23R-5
47-52 |
23R-5
47-52 |
Rock type: | Olivine gabbro | Gabbro | |||||||||||||
Major element oxide (wt%): | |||||||||||||||
SiO2 | 53.25 | 56.96 | 58.18 | 57.85 | 58.14 | 60.02 | 61.02 | 62.37 | 61.57 | 62.90 | 64.57 | 67.28 | 52.67 | 53.59 | 54.10 |
TiO2 | 0.00 | 0.13 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 |
Al2O3 | 29.60 | 26.48 | 26.06 | 25.46 | 26.25 | 25.09 | 24.17 | 23.83 | 24.15 | 22.78 | 22.34 | 20.71 | 29.16 | 29.59 | 28.45 |
Fe2O3 | 0.14 | 0.19 | 0.00 | 0.20 | 0.11 | 0.16 | 0.23 | 0.23 | 0.15 | 0.01 | 0.14 | 0.02 | 0.36 | 0.05 | 0.10 |
CaO | 10.98 | 9.69 | 8.44 | 7.82 | 7.44 | 7.04 | 6.22 | 5.49 | 4.57 | 4.34 | 2.21 | 1.55 | 12.35 | 11.42 | 11.25 |
Na2O | 5.08 | 6.16 | 6.75 | 7.03 | 7.32 | 7.53 | 8.18 | 8.76 | 8.86 | 9.28 | 9.71 | 11.24 | 4.85 | 4.95 | 5.22 |
K2O | 0.05 | 0.29 | 0.29 | 0.05 | 0.02 | 0.34 | 0.15 | 0.01 | 0.06 | 0.01 | 0.01 | 0.11 | 0.07 | 0.01 | 0.04 |
BaO | 0.00 | 0.00 | 0.18 | 0.00 | 0.00 | 0.20 | 0.05 | 0.00 | 0.00 | 0.00 | 0.03 | 0.03 | 0.10 | 0.00 | 0.00 |
Total | 99.10 | 99.91 | 99.91 | 98.42 | 99.28 | 100.42 | 100.02 | 100.74 | 99.36 | 99.32 | 99.03 | 100.94 | 99.61 | 99.61 | 99.16 |
Number of cations based on 8 O: | |||||||||||||||
Si | 2.4245 | 2.5646 | 2.6107 | 2.6272 | 2.6147 | 2.6710 | 2.7159 | 2.7481 | 2.7436 | 2.7997 | 2.8603 | 2.9279 | 2.4026 | 2.4279 | 2.4627 |
Ti | 0.0000 | 0.0044 | 0.0000 | 0.0000 | 0.0000 | 0.0010 | 0.0000 | 0.0013 | 0.0001 | 0.0000 | 0.0001 | 0.0000 | 0.0017 | 0.0000 | 0.0000 |
AlIV | 1.5755 | 1.4052 | 1.3782 | 1.3628 | 1.3853 | 1.3162 | 1.2680 | 1.2376 | 1.2564 | 1.1950 | 1.1397 | 1.0622 | 1.5673 | 1.5721 | 1.5263 |
AlVI | 0.0129 | 0.0000 | 0.0000 | 0.0000 | 0.0060 | 0.0000 | 0.0000 | 0.0000 | 0.0119 | 0.0000 | 0.0266 | 0.0000 | 0.0000 | 0.0078 | 0.0000 |
Fe+3 | 0.0048 | 0.0065 | 0.0001 | 0.0069 | 0.0037 | 0.0053 | 0.0077 | 0.0076 | 0.0050 | 0.0003 | 0.0046 | 0.0007 | 0.0125 | 0.0017 | 0.0034 |
Ca | 0.5356 | 0.4673 | 0.4060 | 0.3804 | 0.3585 | 0.3359 | 0.2965 | 0.2591 | 0.2181 | 0.2070 | 0.1050 | 0.0721 | 0.6034 | 0.5543 | 0.5486 |
Na | 0.4484 | 0.5380 | 0.5875 | 0.6187 | 0.6382 | 0.6499 | 0.7063 | 0.7484 | 0.7656 | 0.8008 | 0.8339 | 0.9481 | 0.4292 | 0.4348 | 0.4607 |
K | 0.0029 | 0.0168 | 0.0167 | 0.0029 | 0.0011 | 0.0191 | 0.0086 | 0.0006 | 0.0036 | 0.0006 | 0.0006 | 0.0063 | 0.0043 | 0.0006 | 0.0023 |
Ba | 0.0000 | 0.0000 | 0.0031 | 0.0000 | 0.0000 | 0.0036 | 0.0009 | 0.0000 | 0.0000 | 0.0000 | 0.0006 | 0.0005 | 0.0017 | 0.0000 | 0.0000 |
Total ions | 5.0046 | 5.0027 | 5.0023 | 4.9989 | 5.0076 | 5.0019 | 5.0038 | 5.0026 | 5.0043 | 5.0034 | 4.9714 | 5.0179 | 5.0227 | 4.9991 | 5.0041 |
An | 54.3 | 45.7 | 40.2 | 38.0 | 35.9 | 33.4 | 29.3 | 25.7 | 22.1 | 20.5 | 11.2 | 7.0 | 58.2 | 56.0 | 54.2 |
Ab | 45.4 | 52.6 | 58.2 | 61.7 | 64.0 | 64.7 | 69.8 | 74.2 | 77.5 | 79.4 | 88.8 | 92.4 | 41.4 | 43.9 | 45.5 |
Or | 0.3 | 1.6 | 1.7 | 0.3 | 0.1 | 1.9 | 0.9 | 0.1 | 0.4 | 0.1 | 0.1 | 0.6 | 0.4 | 0.1 | 0.2 |