Leg, hole:
|
176-735B- | 118-735B- | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Core, section: Interval (cm):
|
118R-4
50-55 |
118R-4
50-55 |
35R-3
57-61 |
35R-6
95-102 |
56R-3
60-65 |
53R-4
68-78 |
2D-1
145-148 |
3D-1
7-11 |
19R-5
62-73 |
19R-5
62-73 |
19R-5
62-73 |
2D-1
123-127 |
2D-1
123-127 |
2D-1
123-127 |
74R-6
27-35 |
Rock type: | Oxide gabbro | Gabbronorite | Oxide gabbronorite | ||||||||||||
Major element oxide (wt%): | |||||||||||||||
SiO2 | 60.86 | 62.38 | 63.35 | 62.88 | 62.70 | 64.13 | 54.60 | 55.73 | 59.59 | 61.18 | 62.32 | 56.16 | 56.40 | 56.57 | 57.40 |
TiO2 | 0.06 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Al2O3 | 23.86 | 23.47 | 23.38 | 22.74 | 23.39 | 23.56 | 28.98 | 27.46 | 25.12 | 24.22 | 23.56 | 27.15 | 27.37 | 27.90 | 27.30 |
Fe2O3 | 0.19 | 0.25 | 0.15 | 0.20 | 0.26 | 0.22 | 0.20 | 0.12 | 0.22 | 0.11 | 0.10 | 0.07 | 0.12 | 0.07 | 0.18 |
CaO | 6.50 | 5.86 | 5.24 | 4.57 | 4.17 | 3.58 | 10.19 | 8.68 | 7.11 | 5.69 | 4.90 | 9.86 | 9.47 | 9.02 | 7.91 |
Na2O | 7.79 | 8.18 | 8.10 | 9.03 | 9.29 | 9.53 | 5.96 | 6.20 | 7.42 | 8.04 | 8.75 | 6.17 | 6.27 | 6.20 | 7.23 |
K2O | 0.34 | 0.31 | 0.28 | 0.04 | 0.08 | 0.29 | 0.04 | 0.13 | 0.05 | 0.01 | 0.05 | 0.05 | 0.10 | 0.07 | 0.14 |
BaO | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 |
Total | 99.60 | 100.60 | 100.55 | 99.46 | 99.89 | 101.31 | 99.97 | 98.32 | 99.51 | 99.29 | 99.68 | 99.46 | 99.73 | 99.88 | 100.16 |
Number of cations based on 8 O: | |||||||||||||||
Si | 2.7210 | 2.7571 | 2.7858 | 2.7969 | 2.7779 | 2.7972 | 2.4626 | 2.5400 | 2.6681 | 2.7304 | 2.7673 | 2.5387 | 2.5405 | 2.5386 | 2.5677 |
Ti | 0.0020 | 0.0000 | 0.0017 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0013 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 |
AlIV | 1.2572 | 1.2225 | 1.2120 | 1.1921 | 1.2215 | 1.2028 | 1.5374 | 1.4600 | 1.3255 | 1.2696 | 1.2327 | 1.4465 | 1.4530 | 1.4614 | 1.4323 |
AlVI | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0083 | 0.0030 | 0.0150 | 0.0000 | 0.0043 | 0.0002 | 0.0000 | 0.0000 | 0.0140 | 0.0070 |
Fe+3 | 0.0063 | 0.0084 | 0.0049 | 0.0067 | 0.0087 | 0.0072 | 0.0068 | 0.0041 | 0.0074 | 0.0037 | 0.0033 | 0.0024 | 0.0041 | 0.0024 | 0.0061 |
Ca | 0.3113 | 0.2777 | 0.2468 | 0.2178 | 0.1980 | 0.1673 | 0.4924 | 0.4238 | 0.3410 | 0.2721 | 0.2331 | 0.4775 | 0.4570 | 0.4336 | 0.3791 |
Na | 0.6756 | 0.7009 | 0.6906 | 0.7787 | 0.7977 | 0.8059 | 0.5211 | 0.5478 | 0.6441 | 0.6956 | 0.7532 | 0.5407 | 0.5475 | 0.5397 | 0.6270 |
K | 0.0192 | 0.0175 | 0.0156 | 0.0023 | 0.0044 | 0.0161 | 0.0023 | 0.0076 | 0.0029 | 0.0006 | 0.0028 | 0.0029 | 0.0057 | 0.0038 | 0.0080 |
Ba | 0.0000 | 0.0025 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0009 | 0.0000 |
Total ions | 4.9926 | 4.9866 | 4.9573 | 4.9943 | 5.0082 | 5.0048 | 5.0256 | 4.9983 | 4.9890 | 4.9776 | 4.9927 | 5.0087 | 5.0078 | 4.9943 | 5.0272 |
An | 30.9 | 27.9 | 25.9 | 21.8 | 19.8 | 16.9 | 48.5 | 43.3 | 34.5 | 28.1 | 23.6 | 46.8 | 45.2 | 44.4 | 37.4 |
Ab | 67.1 | 70.4 | 72.5 | 78.0 | 79.8 | 81.5 | 51.3 | 55.9 | 65.2 | 71.8 | 76.1 | 53.0 | 54.2 | 55.2 | 61.8 |
Or | 1.9 | 1.8 | 1.6 | 0.2 | 0.4 | 1.6 | 0.2 | 0.8 | 0.3 | 0.1 | 0.3 | 0.3 | 0.6 | 0.4 | 0.8 |