| Table reproduced from: Kyle, P.R., Moore,
J.A., and Thirlwall, M.F., 1992, Petrologic evolution of anorthoclase
phonolite lavas at Mount Erebus, Ross Island, Antarctica: Journal
of Petrology, v. 33, p. 849-875. |
|
Select values from Represenative analyses of volcanic rocks
from Mt. Erebus. The complete table can be found here.
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1
|
4
|
9
|
12
|
16
|
17
|
19
|
21
|
| SiO2 |
43.32
|
44.89
|
50.17
|
55
|
56.57
|
54.28
|
58.91
|
63.51
|
| TiO2 |
3.78
|
3.2
|
2.18
|
1.36
|
0.98
|
1.2
|
0.44
|
0.43
|
| Al2O3 |
15.38
|
16.96
|
18.64
|
18.29
|
19.31
|
18.01
|
18.47
|
15.33
|
| FeO* |
12.08
|
11.23
|
8.04
|
6.59
|
4.95
|
8.46
|
5.89
|
6.15
|
| MnO |
0.22
|
0.23
|
0.22
|
0.27
|
0.23
|
0.29
|
0.26
|
0.21
|
| MgO |
6.77
|
4.21
|
2.51
|
1.64
|
0.99
|
1.57
|
0.37
|
0.14
|
| CaO |
10.66
|
9.28
|
5.73
|
3.34
|
2.75
|
4.4
|
2.19
|
1.44
|
| Na2O |
4.63
|
5.24
|
6.44
|
7.77
|
8.17
|
6.52
|
7.66
|
6.56
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| K2O |
1.72
|
2.07
|
3.52
|
4.39
|
4.55
|
3.38
|
4.67
|
5.23
|
| P2O5 |
1.21
|
1.69
|
1.1
|
0.56
|
0.42
|
0.51
|
0.13
|
0.05
|
| LOI |
0.03
|
-0.13
|
-0.01
|
-0.28
|
-0.21
|
0.01
|
0.03
|
0.18
|
| Total |
99.82
|
98.88
|
98.53
|
98.92
|
98.72
|
98.62
|
99.02
|
99.23
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Major elements are given in wt. %.
1, Basanite (83435), Cape Barne; 4, Ne hawaiite (83432), Cape Barne;
9, Ne mugearite (83417), Tent Island; 12, anorthoclase phonolite
(83452), Bomb Peak; 16, anorthoclase phonolite (80020), Three Sisters
Cone; 17, benmoreite (83412), Inaccessible Island; 19, phonolite
(83407), Inaccessible Island; 21, trachyte (82405), Bomb Peak.
LOI, loss on ignition.
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