Leg, hole:
|
176-735B- |
118-735B-
|
176-735B- | 118-735B- | 176-735B- |
118-735B-
|
||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Core, section: Interval (cm):
|
147R-5
67-75 |
149R-4
82-87 |
147R-5
67-75 |
147R-5
67-75 |
147R-5
67-75 |
38R-2
123-129 |
119R-5
62-68 |
119R-5
62-68 |
99R-4
68-74 |
41R-4
68-70 |
35R-6
95-102 |
137R-6
68-79 |
118R-7
89-95 |
77R-4
70-72 |
Rock type: | Gabbro | Oxide gabbro | ||||||||||||
Major element oxide (wt%): | ||||||||||||||
SiO2 | 54.69 | 54.77 | 55.88 | 56.34 | 57.04 | 52.58 | 54.36 | 54.35 | 55.28 | 56.41 | 57.55 | 59.30 | 59.65 | 60.10 |
TiO2 | 0.08 | 0.10 | 0.05 | 0.00 | 0.00 | 0.05 | 0.01 | 0.13 | 0.02 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 |
Al2O3 | 28.27 | 28.22 | 27.57 | 27.37 | 26.84 | 29.95 | 28.83 | 28.20 | 28.77 | 28.53 | 26.40 | 25.24 | 24.84 | 25.04 |
Fe2O3 | 0.43 | 0.39 | 0.11 | 0.18 | 0.25 | 0.05 | 0.25 | 0.13 | 0.08 | 0.19 | 0.17 | 0.31 | 0.20 | 0.14 |
CaO | 11.13 | 10.97 | 10.32 | 10.03 | 9.30 | 12.68 | 12.19 | 11.65 | 10.54 | 9.82 | 8.90 | 7.97 | 7.47 | 6.80 |
Na2O | 5.64 | 5.88 | 6.12 | 6.37 | 6.64 | 4.23 | 4.73 | 5.12 | 5.49 | 6.15 | 6.44 | 7.21 | 7.42 | 7.80 |
K2O | 0.02 | 0.04 | 0.07 | 0.07 | 0.04 | 0.04 | 0.07 | 0.04 | 0.02 | 0.08 | 0.12 | 0.08 | 0.22 | 0.17 |
BaO | 0.02 | 0.10 | 0.00 | 0.13 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.02 | 0.00 |
Total | 100.27 | 100.47 | 100.13 | 100.50 | 100.14 | 99.57 | 100.44 | 99.61 | 100.21 | 101.18 | 99.63 | 100.32 | 99.83 | 100.05 |
Number of cations based on 8 O: | ||||||||||||||
Si | 2.4667 | 2.4681 | 2.5152 | 2.5280 | 2.5602 | 2.3909 | 2.4475 | 2.4653 | 2.4821 | 2.5071 | 2.5881 | 2.6469 | 2.6691 | 2.6774 |
Ti | 0.0027 | 0.0034 | 0.0018 | 0.0000 | 0.0000 | 0.0016 | 0.0005 | 0.0044 | 0.0008 | 0.0000 | 0.0017 | 0.0000 | 0.0000 | 0.0000 |
AlIV | 1.5027 | 1.4985 | 1.4624 | 1.4476 | 1.4197 | 1.6051 | 1.5300 | 1.5077 | 1.5179 | 1.4929 | 1.3992 | 1.3279 | 1.3098 | 1.3147 |
AlVI | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0047 | 0.0015 | 0.0000 | 0.0000 | 0.0000 | 0.0000 |
Fe+3 | 0.0147 | 0.0132 | 0.0036 | 0.0061 | 0.0084 | 0.0016 | 0.0085 | 0.0046 | 0.0027 | 0.0064 | 0.0058 | 0.0103 | 0.0069 | 0.0047 |
Ca | 0.5377 | 0.5296 | 0.4977 | 0.4822 | 0.4470 | 0.6177 | 0.5880 | 0.5661 | 0.5070 | 0.4676 | 0.4288 | 0.3811 | 0.3582 | 0.3245 |
Na | 0.4932 | 0.5140 | 0.5344 | 0.5544 | 0.5780 | 0.3727 | 0.4128 | 0.4505 | 0.4775 | 0.5299 | 0.5615 | 0.6241 | 0.6440 | 0.6737 |
K | 0.0010 | 0.0024 | 0.0041 | 0.0038 | 0.0021 | 0.0023 | 0.0040 | 0.0021 | 0.0014 | 0.0045 | 0.0069 | 0.0046 | 0.0126 | 0.0097 |
Ba | 0.0004 | 0.0017 | 0.0000 | 0.0023 | 0.0006 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0036 | 0.0003 | 0.0000 |
Total ions | 5.0191 | 5.0309 | 5.0193 | 5.0243 | 5.0160 | 4.9918 | 4.9913 | 5.0006 | 4.9941 | 5.0099 | 4.9920 | 4.9984 | 5.0010 | 5.0047 |
An | 52.1 | 50.6 | 48.0 | 46.4 | 43.5 | 62.2 | 58.5 | 55.6 | 51.4 | 46.7 | 43.0 | 37.7 | 35.3 | 32.2 |
Ab | 47.8 | 49.1 | 51.6 | 53.3 | 56.3 | 37.5 | 41.1 | 44.2 | 48.4 | 52.9 | 56.3 | 61.8 | 63.5 | 66.8 |
Or | 0.1 | 0.2 | 0.4 | 0.4 | 0.2 | 0.2 | 0.4 | 0.2 | 0.1 | 0.5 | 0.7 | 0.5 | 1.2 | 1.0 |