Table T14. Representative microprobe analyses of titanite from veins, Hole 735B.
 
Core, section, interval (cm):
28R-4,
141-144
37R-2,
113-117
42R-3,
27-31
44R-1,
35-47
58R-2,
0-10
63R-6,
98-106
66R-2,
25-31
70R-1,
39-49
87R-6,
31-41
92R-2,
49-53
120R-4,
55-60
122R-4,
0-5
123R-3,
87-94
126R-5,
102-106
139R-2,
0-5
142R-1,
76-80
159R-7,
66-72
192R-6,
44-50
Number of analyses:
1
2
1
1
1
1
1
1
1
3
9
1
2
2
1
2
1
4
Major element oxide (wt%):
SiO2 30.01 30.13 30.51 30.74 30.93 30.82 30.63 30.78 30.73 30.52 30.78 30.59 30.56 30.42 30.66 30.65 30.88 30.58
TiO2 36.17 37.29 38.22 37.16 37.49 37.63 38.66 37.41 37.64 38.19 37.75 37.62 37.77 37.77 37.59 38.26 38.85 38.45
Al2O3 1.97 1.01 0.40 1.26 0.70 0.57 0.29 0.37 0.39 0.69 0.40 0.52 0.26 0.43 0.56 0.63 0.95 0.47
FeO 0.71 0.88 0.96 0.46 2.01 0.69 0.95 1.36 1.30 0.56 0.74 1.78 1.42 1.19 0.74 0.34 0.75 0.69
MnO 0.04 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.03
MgO 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.03 0.00 0.01 0.03 0.01 0.03 0.00 0.03
CaO 28.34 28.33 28.17 28.61 28.15 28.86 28.78 28.20 27.85 28.34 28.67 28.28 28.21 28.41 28.94 30.00 29.00 29.13
Na2O 0.03 0.04 0.08 0.05 0.11 0.04 0.05 0.09 0.02 0.06 0.07 0.02 0.15 0.03 0.07 0.00 0.00 0.01
La2O3 ND 0.00 ND ND ND ND ND ND ND 0.00 0.20 0.32 0.00 0.11 0.00 0.36 0.04 0.03
F 0.08 0.03 0.00 0.00 0.02 0.00 0.00 0.70 0.29 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total: 97.35 97.73 98.34 98.27 99.42 98.61 99.36 98.91 98.22 98.43 98.69 99.14 98.38 98.40 98.57 100.30 100.47 99.41
Number of ions based on 4 Si:
Si 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000
Ti 3.6261 3.7228 3.7684 3.6372 3.6463 3.6737 3.7972 3.6565 3.6850 3.7649 3.6893 3.6999 3.7188 3.7360 3.6893 3.7558 3.7845 3.7827
Al 0.1547 0.0789 0.0311 0.0962 0.0530 0.0436 0.0223 0.0283 0.0299 0.0531 0.0308 0.0404 0.0197 0.0338 0.0433 0.0488 0.0724 0.0361
Fe+2 0.0791 0.0979 0.1047 0.0496 0.2176 0.0749 0.1037 0.1478 0.1415 0.0618 0.0806 0.1942 0.1549 0.1311 0.0807 0.0369 0.0814 0.0755
Mn 0.0045 0.0018 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0001 0.0046 0.0000 0.0000 0.0000 0.0000 0.0005 0.0000 0.0031
Mg 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0135 0.0066 0.0000 0.0011 0.0054 0.0013 0.0062 0.0000 0.0055
Ca 4.0468 4.0295 3.9555 3.9879 3.8994 4.0133 4.0265 3.9261 3.8837 3.9801 3.9914 3.9610 3.9568 4.0032 4.0453 4.1939 4.0246 4.0814
Na 0.0039 0.0051 0.0096 0.0064 0.0143 0.0050 0.0063 0.0113 0.0025 0.0075 0.0088 0.0032 0.0194 0.0043 0.0084 0.0006 0.0000 0.0017
La ND 0.0000 ND ND ND ND ND ND ND 0.0000 0.0048 0.0077 0.0000 0.0028 0.0000 0.0088 0.0009 0.0006
F 0.0337 0.0134 0.0000 0.0000 0.0096 0.0000 0.0000 0.2877 0.1194 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Total: 11.9489 11.9493 11.8693 11.7775 11.8402 11.8105 11.9561 12.0578 11.8620 11.8810 11.8120 11.8986 11.8706 11.9138 11.8682 12.0428 11.9629 11.9859

Note: ND = not determined.