PETROLOGY: IDDINGS AND MORLEY 115 
Table op Chemical Analyses and Norms of Lava erom South Pacific Islands 
ll 
12 
1; 
14 
15 
16 
17 
18 
19 
20 
Si0 2 
52.11 
50. 11 
50.73 
47 
60 
46.55 
46 
96 
46.01 
47 .55 
44.74 
42 .46 
A1 2 0 3 
20 . 04 
18.91 
17 
22 
13 
35 
10. 75 
11 
00 
11 
49 
14.53 
16.74 
13\85 
Fe 2 0 3 
3.27 
4.55 
3 
/TO 
02 
2 
83 
2 .60 
2 
22 
2 
27 
2 .23 
3.70 
5.21 
FeO 
2.15 
2 .51 
3 
T A 
74 
8 
02 
n /to 
9 
42 
10 
1/ 
/ .53 
8.53 
7 .58 
MgO 
1 .50 
2 .49 
2 
72 
10 
86 
13 .39 
14 
21 
12 
72 
/ .01 
4.80 
7 .76 
CaO 
3.90 
A *7A 
4. 70 
5 
OO 
9 
47 
0. 12 
9 
46 
9 
50 
11 . 13 
9.88 
11 .28 
Na 2 0 
5.72 
1 .47 
7 
92 
3 
00 
2 . /O 
1 
64 
1 
82 
2 . 14 
4.42 
3 .67 
K 2 0 
5 .30 
a on 
4.29 
3 
89 
1 
82 
1 .50 
1 
40 
1 
38 
1 0 /t 
1 .84 
1 . 14 
2 .34 
H 2 0+ 
2 .84 
a <ca 
0.69 
0 
36 
0 
43 
a 0*7 
0.87 
0 
61 
1 
10 
1 /CO 
1 .68 
1 . 12 
0.65 
0.30 
U. /8 
0 
12 
a 
u 
1 1 
l / 
A C 1 
U.51 
a 
U 
0 
33 
0.57 
A 11 
0.33 
0.07 
Ti0 2 
1 .90 
1 .9/ 
1 
91 
2 
65 
2 .54 
2 
77 
2 
90 
3 .24 
3 .68 
3 .64 
ZrQ 2 
0.01 
0 
00 
C0 2 
0.02 
0 
16 
P 2 0 5 
0.40 
0.55 
0 
76 
0 
33 
0.36 
0 
38 
0 
36 
0.49 
0.70 
0.90 
CI 
0.12 
0 
28 
F 
0.13 
0 
14 
S 
0.23 
0 
29 
Cr 2 0 3 
0.00 
0.01 
0 
00 
0 
06 
0.09 
0 
08 
0 
11 
0.01 
tr. 
0.05 
MnO 
0.14 
0.65 
0 
35 
0 
13 
0.16 
0 
16 
0 
18 
0.13 
0.19 
0.19 
BaO 
0.08 
0 
18 
SrO 
0.10 
0 
22 
99.57 
100.37 
100.27 
100 
27 
100.41 
100 
36 
100 
34 
100.08 
99.97 
99.65 
Norms 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
31.14 
25.58 
22.80 
10.56 
9.45 
8.34 
8.34 
10.56 
6.67 
13.90 
ab 
28.30 
22.01 
24.10 
18.86 
17.82 
13.62 
15.20 
17.82 
21.48 
3.67 
an 
13.34 
5.28 
0.28 
17.79 
12.23 
18.63 
19.18 
24.74 
22.52 
14.46 
ne 
10.79 
22.15 
23.00 
3.41 
3.12 
8.52 
14.77 
di 
2.59 
11.66 
17.17 
21.75 
22.49 
20.41 
19.65 
21.69 
' 17.83 
28.66 
wo 
0.58 
hy 
9.74 
5.78 
8.14 
ol 
1.82 
0.56 
17.72 
24.27 
19.35 
20.88 
4.16 
7.41 
7.07 
mt 
1.86 
4.41 
5.34 
4.41 
4.18 
3.48 
3.25 
3.25 
5.34 
7.66 
il 
3.65 
3.80 
3.65 
5.17 
4.86 
5.32 
5.47 
6.08 
6.99 
6.84 
hm 
2.08 
1.60 
ap 
1.01 
1.34 
2.02 
0.67 
1.01 
1.01 
1.34 
1.34 
1.68 
2.02 
etc 
3.14 
2.07 
1.35 
0.60 
1.38 
0.66 
1.54 
2.26 
1.45 
0.77 
99.72 
100.46 
100.29 
100.94 
100.81 
100 . 56 
100.63 
100.04 
99.89 
99.82 
11. (I)II. (5)6. 2. 3(4). essexose-borolanose, tautirite Beach, Tautira, Taiarapu, H. W- 
Foote. 
12. II. 6. 1(2) 4. essexose-lardalose, hauynophyre, Faurahi valley, Mataia, Tahiti, E. 
W. Morley. 
13. II. 6'. 1. 4. lardalose, haiipnophyre, Ururoa valley, Tahiti, E. W. Morley. 
14. III. 5'. 3. 4. camptonose, dolerite, Dike, Rei Point, Tahaa, H. W. Foote. 
15. Ill', 5\ '3. 4. camptonose, basalt, Central mountain, Bora Bora, H. W. Foote. 
16. III'. 5. 3(4). (3)4. kentallenose-camptonose, basalt, South of Fare, Huahine, H. W. 
Foote. 
17. III'. 5, 3(4). '4. auvergnose-camptonose, basalt, Mountain between bays, Moorea, H. 
W. Foote. 
18. III. 5. (3)4. (3)4. camptonose-auvergnose, basalt, S.W. base of Mauratapu, Huahine, 
H. W. Foote. 
19. (II) III. (5)6. 3. 4(5). camptonose-limburgose, basalt, Upper flow, Point Tapahi, 
Tahiti, H. W. Foote. 
20. III. 6'. (2)3. 4. monchiquose-limburgose, theralite, Vaitipihia, Tautira, Taiarapu, 
H. W. Foote. 
