Geology Reference
In-Depth Information
Table 2.12 Analyses of apatite
SiO 2
FeO t a
TiO 2
MnO
MgO
CaO
SrO
BaO
Na 2 O 2 O 2 O 5
Cl
F
F = 0
Total
1
0.33
0.30
0.40
54.63
0.03
0.21
36.91
0.02
5.01
98.04
2
0.42
0.03
0.27
55.10
0.22
0.04
0.10
0.62
41.70
0.04
2.78
1.17
100.15
3
0.48
0.05
0.14
54.30
0.59
0.06
0.15
0.59
41.20
0.09
3.11
1.31
99.45
4
0.99
0.19
0.03
0.10
54.98
0.58
0.23
40.37
0.16
2.41
99.60
5
0.05
0.69
0.33
0.00
48.05
2.07
12.20
0.15
0.11
36.50
0.00
-
-
-
100.01
6
0.49
-
0.30
0.03
0.31
54.10
0.29
0.15
40.10
0.75
3.30
100.40
7
0.60
0.46
0.02
0.32
53.90
0.28
0.16
40.00
0.76
1.40
100.50
a FeO t indicates total FeO + Fe 2 O 3 contents
1 Apatite from a lamproitic rock at Mohanpur, Damodar valley, India (Gupta et al. 1983). Also contains 0.2 wt% Al 2 O 3
2
3 Apatite from an ultrapotassic basanitic lava, Sierra Nevada, U.S.A. (van Kooten 1980)
4 Apatite from a leucitic tuff, Roccamon na, Italy (Luhr and Giannetti 1987). Also contains 0.03 wt% Al 2 O 3 and 0.58 wt% H 2 O
5 Barian uorapatite, diopside-leucite lamproite, West Kimberley, Western Australia (Edgar 1989)
6 Apatite from K-rich rocks of Vesuvius, lava of1760 eruption, Ungino, Italy (Baldridge et al. 1981). Also contains 0.03 wt% SO 3 , 0.12 wt% La 2 O 3 , 0.22 wt%
Ce 2 O 3 , 0.14 wt% Nd 2 O 3 and 0.06 wt% Al 2 O 3
7 Apatite from K-rich rocks of Vesuvius, 1631 lava, La Scala, Italy (Baldridge et al. 1981). Also contains 0.11 wt% SO 3 , 0.10 wt% La 2 O 3 , 0.20 wt% Ce 2 O 3 ,
0.15 wt% Nd 2 O 3 and 0.08 wt% Al 2 O 3
-
 
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