Geology Reference
In-Depth Information
Table 4.20 Analyses of K-Rich rocks from Oceanic Islands
SiO 2
H 2 O -
TiO 2
Al 2 O 3
Fe 2 O 3
FeO
MnO
MgO
CaO
Na 2 O 2 OP 2 O 5
LOI
Total
1
-
54.80
1.59
19.13
5.37
0.21
1.43
5.48
5.49
4.89
0.37
0.11
0.62
99.49
2
-
56.93
1.33
19.50
4.64
0.15
1.31
3.84
6.08
5.39
0.31
0.20
1.03
100.70
3
-
61.38
0.51
19.78
2.30
0.18
0.30
1.31
7.28
6.81
0.06
0.19
0.74
100.80
4
-
58.34
1.13
19.90
3.69
0.13
0.76
2.91
5.70
5.88
0.20
0.48
1.18
100.30
5
57.91
0.65
18.22
1.90
3.20
0.27
1.01
3.58
4.98
6.69
0.48
0.38
-
100.20
6
-
-
51.79
0.66
14.96
9.03
0.17
4.78
8.60
3.51
4.53
0.44
0.36
98.83
7
-
-
57.32
0.53
15.14
7.40
0.14
3.49
6.38
3.80
5.04
0.34
0.05
99.63
8
50.86
0.77
16.15
10.06
-
0.17
3.69
8.06
2.71
4.22
0.51
-
1.41
98.61
9
-
-
50.44
0.90
16.21
8.62
0.17
5.80
9.92
2.29
3.45
0.69
1.27
99.76
1 - 4 Tristan da Cunha (after Le Roxe et al. 1990)
5 The bulk chemical composition of Leucite-bearing rock from Utsuryoto Island (after Tsuboi 1920). It also includes 0.07 wt% ZrO 2 and 0.82 wt% H 2 O +
6 - 9 Leucite-bearing lavas from Vulcano Island, Aeolian Arc (Ellam et al. 1989)
 
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