Geology Reference
In-Depth Information
Table 2.13 Analyses of Spinel occurring in Different K-rich rocks from different localities
SiO 2
FeO a
FeO t
TiO 2
Al 2 O 3
Cr 2 O 3
P 2 O 5
MgO
MnO
CaO
Na 2 O 2 O
ZrO 2
ZnO
Total
Fe 2 O 3
1
0.02
0.02
0.03
78.23
0.05
0.06
78.41
2
0.09
0.11
2.27
67.97
18.95
3.36
0.44
0.29
93.48
3
1.61
85.01
1.77
2.80
0.51
0.03
91.73
4
0.36
0.15
2.01
67.60
15.03
3.19
0.99
0.18
89.51
5
0.57
0.91
1.95
78.30
12.00
0.27
0.54
0.04
0.10
0.30
0.42
95.40
6
1.00
0.56
4.44
79.70
7.02
0.68
0.59
0.10
0.04
0.24
0.21
94.58
7
0.55
0.91
2.83
72.00
13.00
5.21
0.88
0.05
0.06
0.19
0.28
95.96
8
0.12
0.23
21.77
13.23
0.21
64.87
0.05
0.02
100.50
9
0.05
0.16
14.59
21.86
0.24
63.60
0.09
0.02
100.61
10
0.10
0.67
6.79
3.56
1.49
0.02
99.33
51.36
35.34
11
0.03
0.01
0.45
2.07
5.22
4.12
0.65
93.70
81.15
12
n.d.
0.01
0.51
1.85
6.55
3.03
0.77
95.02
82.30
13
n.d.
n.d.
0.44
0.41
4.28
1.96
0.60
94.08
86.39
14
57.52
15.33
0.11
11.93
0.93
99.59
13.77
15
44.07
10.79
0.68
6.71
0.79
95.85
32.81
16
0.10
20.32
0.02
64.53
0.06
99.35
14.32
17
0.03
0.02
7.46
0.38
57.66
0.16
99.73
34.02
18
0.05
55.20
7.15
4.33
2.16
0.93
99.50
29.68
19
37.05
51.41
4.42
4.52
0.23
0.84
98.47
9.77
28.26
20
20.33
65.34
10.41
1.23
3.04
0.69
101.04
3.22
17.43
 
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