52 
PACIFIC SCIENCE, Vol. IX, January, 1955 
TABLE 2 
The Chemical Composition of Series of Samples Taken at Intervals Along a Line Crossing a 
Dehydrated Titaniferous-Ferruginous Laterite Area on a Slope of a Hill 
Near Meyer Lake, Molokai 
PROFILE 
SITE ON 
SLOPE 
DESCRIPTION 
DEPTH 
INCHES 
Si0 2 
PER CENT 
AloOs 
PER CENT 
Fe 2 0 3 
PER CENT 
Ti0 2 
PER CENT 
MnO 
PER CENT 
A 
Reddish brown granular material hav- 
ing a high bulk density 
0-9 
20.72 
13.00 
21.40 
14.80 
0.02 
A 
Reddish brown friable silty clay con- 
taining some gray aggregates 
9-18 
16.50 
22.00 
18.44 
10.78 
0.07 
B 
Grayish brown granular material hav- 
ing high bulk density 
0-10 
17.61 
9.90 
39.40 
19-60 
0.08 
B 
Dark reddish brown clay having plas- 
tic gray nodules 
10-25 
10.31 
11.00 
46.60 
10.40 
0.07 
C 
Grayish purple soil material 
0-25 
17.73 
9.70 
53.20 
17.00 
0.34 
C 
Grayish purple concretions from slag- 
like material 
0-25 
4.13 
9.10 
70.90 
11.20 
0.13 
D 
Grayish purple soil material 
0-24 
17.32 
1.42 
57.44 
20.56 
0.15 
D 
Grayish purple concretions from slag- 
like material 
0-24 
2.60 
6.10 
72.82 
11.18 
0.08 
E 
Grayish purple soil material 
0-30 
17.21 
8.70 
46.40 
18.90 
0.20 
E 
Grayish purple concretions 
0-30 
3.89 
12.00 
65.70 
11.40 
0.14 
F 
Grayish purple soil 
0-9 
17.80 
6.50 
46.40 
18.50 
0.56 
F 
Grayish purple crystalline concretions . 
0-9 
2.41 
8.30 
71.50 
13.40 
0.11 
Fi 
Grayish purple soil 
9-30 
20.20 
6.20 
47.66 
19.40 
0.30 
F, 
Grayish purple crystalline concretions . 
9-30 
3.60 
3.30 
74.60 
12.40 
0.13 
G 
Grayish purple slaglike surface soil . . . 
0-9 
11.02 
19.00 
33.10 
15.40 
0.09 
H 
Reddish brown granular surface soil . . 
0-20 
12.38 
16.00 
37.60 
10.20 
0.10 
TABLE 3 
The Analysis of Samples of Soil from the Naiwa Soil Family Area of Meyer Lake, Molokai, 
for Types of Iron Oxides in Order to Calculate the Possible Hypothetical Percentage 
of Ilmenite from the Ferrous Iron and Titanium Oxide Content 
SAMPLING SITE 
DEPTH 
INCHES 
TOTAL Fe 
PER CENT 
Fe 2 0 3 
PER CENT 
FeO 
PER CENT 
TiOf 
PER CENT 
CALCULATE 
CON’: 
D ILMENITE 
rENT 
From TiOo 
PER CENT 
From FeO 
PER CENT 
A 
0-9 
25.3 
20.8 
14.8 
13.7 
26.0 
31.2 
A 
9-18 
22.1 
15.8 
12.6 
4.3 
8.2 
26.6 
B 
0-10 
31.7 
29.3 
12.2 
17.3 
32.8 
25.8 
B 
10-25 
34.6 
32.5 
13.1 
6.0 
11.5 
27.8 
D— soil 
0-24 
46.4 
53.0 
12.5 
22.7 
43.1 
26.3 
D — concretions 
0-24 
50.4 
68.4 
4.1 
9.8 
18.6 
8.6 
F— soil 
0-9 
32.3 
30.8 
13.7 
19.7 
37.4 
28.9 
F — concretions 
0-9 
50.2 
68.4 
3.3 
10.9 
20.6 
7.0 
G 
0-9 
39.4 
48.6 
7.0 
18.9 
35.8 
14.7 
H 
0-20 
34.6 
36.6 
12.0 
14.7 
28.0 
25.3 
