Table T8 (continued).
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