Table T6 (continued).
Leg, hole:
118-735B-
176-735B-
118-735B- 176-735B- 118-735B-
Core, section: Interval (cm):
44R-2
6-8
47R-2
92-100
48R-4
32-37
47R-1
70-78
100R-1
22-27
77R-4
70-72
53R-4
68-78
53R-4
68-78
157R-1
104-111
157R-1
104-111
157R-1
104-111
19R-5
62-73
19R-5
62-73
2D-1
123-127
74R-6
0-8
Rock type:
Oxide gabbro
Olivine gabbronorite
Gabbronorite		 Oxide gabbronorite
Major element oxide (wt%):                    
                               
SiO2 51.94 51.32 51.78 50.22 51.31 52.42 50.36 50.45 53.09 52.31 52.26 55.45 51.69 52.47 50.87
TiO2 0.29 0.29 0.22 0.21 0.29 0.24 0.09 0.09 0.18 0.30 0.40 0.58 0.19 0.36 0.41
Al2O3 0.92 0.72 0.70 0.67 0.53 0.61 0.15 0.34 0.99 0.80 0.95 0.98 1.29 1.13 0.77
FeO 22.75 22.69 24.28 25.54 26.74 28.38 32.46 33.96 19.30 21.54 22.02 18.99 21.97 21.00 22.60
Cr2O3 0.00 0.00 0.00 0.00 0.10 0.02 0.00 0.04 0.00 0.00 0.04 0.03 0.03 0.03 0.00
MnO 0.75 0.65 0.98 0.74 0.61 0.82 1.05 0.94 0.64 0.56 0.62 0.64 0.51 0.51 0.82
MgO 22.68 20.46 19.61 18.18 18.13 17.32 14.78 13.71 23.80 22.61 22.35 21.33 21.10 22.14 22.01
CaO 1.20 1.36 2.42 1.19 2.33 2.68 1.24 1.13 1.04 1.76 1.75 0.80 1.64 1.33 3.84
Na2O 0.00 0.02 0.03 0.00 0.10 0.00 0.00 0.00 0.17 0.06 0.19 0.25 0.01 0.11 0.04
Total 100.53 98.74 100.02 98.07 100.13 102.49 100.13 100.66 99.21 99.95 100.58 99.05 98.43 99.09 101.36
Number of cations based on 6 O:                        
Si 1.9393 1.9760 1.9649 1.9781 1.9658 1.9729 1.9812 1.9846 1.9706 1.9538 1.9456 2.0429 1.9628 1.9670 1.9043
Ti 0.0081 0.0084 0.0063 0.0063 0.0083 0.0068 0.0027 0.0027 0.0051 0.0085 0.0112 0.0161 0.0054 0.0103 0.0115
AlIV 0.0405 0.0240 0.0313 0.0219 0.0238 0.0271 0.0070 0.0154 0.0294 0.0353 0.0419 -0.0429 0.0372 0.0330 0.0340
AlVI 0.0000 0.0084 0.0000 0.0094 0.0000 0.0000 0.0000 0.0003 0.0138 0.0000 0.0000 0.0854 0.0205 0.0170 0.0000
Fe+2 0.7103 0.7305 0.7704 0.8412 0.8567 0.8931 1.0678 1.1171 0.5990 0.6728 0.6855 0.5850 0.6976 0.6582 0.7074
Cr 0.0000 0.0000 0.0000 0.0000 0.0030 0.0006 0.0000 0.0012 0.0000 0.0000 0.0010 0.0009 0.0009 0.0009 0.0000
Mn 0.0237 0.0211 0.0315 0.0248 0.0196 0.0261 0.0350 0.0313 0.0201 0.0178 0.0196 0.0200 0.0164 0.0160 0.0260
Mg 1.2624 1.1743 1.1094 1.0678 1.0358 0.9718 0.8668 0.8040 1.3172 1.2592 1.2403 1.1715 1.1945 1.2373 1.2284
Ca 0.0480 0.0560 0.0984 0.0504 0.0955 0.1081 0.0523 0.0476 0.0415 0.0703 0.0698 0.0316 0.0667 0.0536 0.1540
Na 0.0000 0.0037 0.0064 0.0004 0.0224 0.0000 0.0000 0.0000 0.0347 0.0121 0.0400 0.0560 0.0021 0.0239 0.0079
Total 4.0323 4.0025 4.0185 4.0003 4.0311 4.0065 4.0127 4.0043 4.0314 4.0300 4.0548 3.9664 4.0042 4.0167 4.0736
En 62.5 59.9 56.1 54.5 52.1 49.3 43.6 40.8 67.3 62.9 62.2 65.5 61.0 63.5 58.8
Fe 35.1 37.3 38.9 42.9 43.1 45.3 53.7 56.7 30.6 33.6 34.4 32.7 35.6 33.8 33.9
Wo 2.4 2.9 5.0 2.6 4.8 5.5 2.6 2.4 2.1 3.5 3.5 1.8 3.4 2.7 7.4