454 PETROLOGY: IDDINGS AND MORLEY 
Table of Chemical Analyses and Norms of Japanese Lavas 
1 
2 
3 
4 
5 
6 
7 
8 
Si02 
50.61 
53.38 
58.93 
57.04 
57.75 
59.27 
59.79 
60.95 
AI2O3 
17.84 
18.15 
16.56 
15.78 
17.50 
16.66 
17.41 
16.30 
Fe203 .... 
2.97 
2.27 
2.82 
2.36 
3.45 
1.56 
1.84 
2.47 
FeO 
7.12 
6.21 
4.36 
5.37 
3.54 
4.79 
4.27 
4.05 
MgO 
5.99 
3.60 
3.81 
4.44 
3.87 
3.97 
3.19 
3.27 
CaO 
10.14 
9.60 
7.84 
7.54 
7.45 
7.77 
7.34 
7.29 
NazO 
2.48 
2.89 
2.34 
2.74 
2.83 
2.92 
2.71 
2.50 
K2O 
0.74 
1.75 
1.00 
1.31 
1.33 
1.03 
1.85 
1.68 
H2O-. . . 
0.00 
0.00 
0.25 
0.39 
0.17 
0.00 
0.00 
0.12 
H2O+ . . . 
0.39 
0.14 
0.71 
1.32 
0.44 
0.16 
0.11 
0.32 
TiOz 
0.66 
0.86 
0.59 
0.79 
0.67 
0.81 
0.63 
0.60 
P2O6 
0.34 
0.29 
0.15 
0.19 
0.26 
0.55 
0.33 
0.07 
MnO 
0.80 
0.43 
0.44 
0.44 
0.53 
0.35 
0.15 
0.19 
ZrOa 
0.00 
0.00 
0.00 
0.02 
0.01 
0.01 
0.01 
0.00 
CO2 
0.00 
0.01 
0.03 
0.00 
0.01 
0.01 
0.00 
0.00 
CI 
0.08 
0.05 
0.07 
0.12 
0.06 
0.06 
0.14 
0.09 
F 
0.04 
0.10 
0.08 
0.08 
0.03 
0.02 
0.07 
0.02 
S 
0.03 
0.02 
0.02 
0.05 
0.08 
0.06 
0.08 
0.05 
CraOs. . . . 
0.02 
0.00 
0.01 
0.01 
0.01 
0.00 
0.00 
0.00 
BaO 
0.03 
0.04 
0.02 
0.08 
0.04 
0.03 
0.08 
0.04 
SrO 
0.02 
0.03 
0.00 
0.01 
0.02 
0.04 
0.04 
0.02 
100.30 
99.82 
100.02 
100.08 
100.05 
100.07 
100.04 
100.03 
Norms 
q 
1.38 
3.66 
18.42 
12.42 
14.52 
15.42 
15.60 
19.32 
4.45 
10.56 
5.56 
7.78 
7.78 
6.12 
11.12 
10.01 
ab 
20.96 
24.63 
19.91 
23.06 
24.10 
24.63 
23.06 
20.96 
an 
35.31 
31.14 
31.97 
26.97 
31.14 
29.47 
29.75 
28.36 
c 
di 
10.63 
11.77 
4.73 
7.94 
3.13 
4.54 
3.86 
6.31 
ty 
20.64 
12.10 
12.62 
14.61 
11.64 
14.54 
11.65 
9.37 
mt 
4.41 
3.25 
4.18 
3.48 
5.10 
2.32 
2.55 
3.71 
il 
1.37 
1.67 
1.22 
1.52 
1.22 
1.52 
1.22 
1.22 
ap 
0.67 
0.67 
0.34 
0.34 
0.67 
1.34 
0.67 
etc 
0.61 
0.38 
1.16 
2.08 
0.86 
0.38 
0.53 
0.66 
100.43 
99.83 
100.11 
100.20 
100.16 
100.28 
100.01 
99.92 
1. Basalt, hessose-auvergnose, (II) III. 5. 4. 4'. Fuji yama. 
2. Pyroxene-andesite, andose-hessose, 11.5.(3)4.4. Aso, central crater. 
3. Pyroxene-andesite, bandaite, bandose, II. 4. 4. 4. Nazu, lava 1881. 
4. Pyroxene-andesite, tonalose-bandose, II . 4' . (3) 4 . 4. Zao San. 
5. Pyroxene-andesite, tonalose-bandose, 11.4.(3)4.4. Shimasaki, Kumamoto 
6. Pyroxene-andesite, tonalose-bandose, 11.4.(3)4.4. Asama yama, erupt. 1909. 
7. Pyroxene-andesite, tonalose-bandose, 11.4.(3) 4. '4. Ohachi. Takachiho, 
8. Pyroxene-andesite, tonalose-bandose, 11.4.(3)4.4. Azuma yama, lava 1893. 
9. Pyroxene-andesite, tonalose-bandose, '11,4.(3)4.4'. Komagatake, Hokkaido. 
