Table T15. Representative microprobe analyses of clay minerals from veins, Hole 735B.
 
Core, section, interval (cm):
37R-2,
113-117
44R-1,
35-47
57R-4,
123-133
68R-2,
68-75
120R-1,
85-91
133R-7,
92-98
133R-7,
92-98
161R-3,
128-135
168R-5,
72-78
172R-7,
124-128
172R-7,
124-128
181R-1,
131-136
200R-6,
31-37
202R-2,
123-128
203R-2,
11-16
210R-5,
116-120
Number of analyses:
1
1
2
2
1
2
1
1
1
1
1
4
1
2
1
2
Color:
Green
Brown
Brown
Brown
Brown
Brown
Brown
Green
Brown
Brown
Brown
Brown
Green
Brown
Brown
Brown
Major element oxide (wt%):
SiO2 50.60 41.92 37.20 48.85 37.41 43.13 41.88 25.62 40.15 35.61 51.67 44.59 34.99 33.04 49.23 49.17
TiO2 0.08 0.01 0.00 0.06 0.02 0.04 0.00 0.05 0.00 0.04 0.08 0.01 0.00 0.00 0.00 0.01
Al2O3 4.24 10.05 14.58 8.12 12.44 10.28 8.54 18.09 7.98 13.81 1.58 5.81 13.33 13.43 28.29 28.41
FeO 15.57 5.90 8.15 5.46 16.27 10.87 9.95 26.75 4.69 13.03 8.08 7.15 12.67 12.03 0.00 0.01
MnO 0.05 0.44 0.18 0.11 0.30 0.21 0.19 0.20 0.18 0.29 0.30 0.20 0.17 0.18 0.00 0.00
MgO 13.95 21.06 23.69 13.78 19.92 16.85 21.69 14.29 24.88 23.00 26.55 21.41 25.11 24.98 0.14 0.02
CaO 3.35 2.44 0.44 8.91 0.62 4.77 1.06 0.12 1.79 1.16 0.94 4.10 0.88 0.40 1.56 1.08
Na2O 0.96 0.16 0.50 3.35 0.34 1.84 1.07 0.16 0.54 0.32 0.21 0.90 0.66 0.22 7.64 8.82
K2O 0.00 0.30 0.46 0.02 0.05 0.03 0.04 0.00 0.03 0.02 0.04 0.02 0.00 0.01 0.00 0.03
Cl 0.00 0.03 0.03 0.11 0.03 0.07 0.02 0.03 0.00 0.00 0.51 0.01 0.05 0.00 0.03 0.00
Total: 89.00 82.37 85.22 88.77 87.40 88.09 84.45 85.31 80.25 87.26 89.97 84.21 87.86 84.29 86.89 87.55
Number of ions based on 22 O:
Si 7.5622 6.5250 5.6932 7.1485 5.8169 6.4827 6.4923 4.4216 6.3987 5.4912 7.3358 6.8621 5.3685 5.2753 6.8631 6.8318
Ti 0.0094 0.0008 0.0000 0.0066 0.0022 0.0044 0.0000 0.0062 0.0005 0.0040 0.0082 0.0008 0.0000 0.0000 0.0000 0.0008
AlIV 0.4378 1.4750 2.3068 0.8515 2.1831 1.5173 1.5077 3.5784 1.4995 2.5007 0.2646 1.1379 2.4104 2.5212 1.1369 1.1682
AlVI 0.3091 0.3687 0.3235 0.5490 0.0970 0.3230 0.0528 0.1023 0.0000 0.0089 0.0000 0.2829 0.0000 0.0000 3.5116 3.4837
Al ions 0.7468 1.8437 2.6303 1.4004 2.2802 1.8403 1.5605 3.6807 1.4995 2.5096 0.2646 1.0521 2.4104 2.5211 4.6485 4.6518
Fe+2 1.9456 0.7677 1.0425 0.6681 2.1159 1.3920 1.2903 3.8606 0.6244 1.6803 0.9597 0.9197 1.6257 1.6097 0.0000 0.0010
Mn 0.0063 0.0576 0.0231 0.0136 0.0399 0.0268 0.0254 0.0297 0.0245 0.0379 0.0360 0.0262 0.0221 0.0234 0.0000 0.0000
Mg 3.1086 4.8881 5.4046 3.0063 4.6180 3.8121 5.0131 3.6760 5.9109 5.2868 5.6199 4.9115 5.7440 5.9285 0.0295 0.0051
Ca 0.5361 0.4075 0.0719 1.3969 0.1035 0.7502 0.1760 0.0225 0.3062 0.1907 0.1434 0.6986 0.1451 0.0703 0.2327 0.1613
Na 0.2778 0.0480 0.1473 0.9504 0.1017 0.5261 0.3212 0.0548 0.1673 0.0954 0.0573 0.2694 0.1956 0.0705 2.0662 2.3745
K 0.0000 0.0587 0.0906 0.0037 0.0097 0.0067 0.0088 0.0000 0.0057 0.0037 0.0078 0.0049 0.0000 0.0013 0.0000 0.0055
Cl 0.0012 0.0088 0.0074 0.0273 0.0088 0.0181 0.0050 0.0074 0.0000 0.0000 0.1236 0.0031 0.0129 0.0000 0.0061 0.0000
Total: 14.1939 14.6059 15.1108 14.6218 15.0967 14.8593 14.8926 15.7595 14.9377 15.2996 14.5562 15.1169 15.5243 15.5002 13.8461 14.0319