:ke.] 
CARBONATE ROCKS. 
MONTANA. 
260 
Analyses by Charles Catlett, record 
Rocks collected by A. C. Peale. 
»s. 890, 905. 
North of East Gallatin River. 
West of North Boulder River. 
D. North of East Gallatin River. 
Base of Carboniferous, west side of Bridger Range. 
Middle Carboniferous, north of Gallatin River. 
H. Upper Carboniferous, north of Gallatin River. 
Analyses all partial. A, B, C, D, and H were published bv Peale 
n Bull. 110, pp. 16, 28, and 40. 
A. 
B. 
C, 
E. 
F. 
G, 
A. 
B. 
C. 
D. 
Insoluble 
.34 
.22 
54. 54 
43. 63 
1.78 
.40 
54. 54 
42.62 
23. 50 
2.50 
67. 85 
6.18 
35. 26 
1.92 
59.11 
1.96 
Fe 2 3 Al 2 3 
CaC0 3 
MgCOg 
99.73 
99.34 
100. 03 
98. 25 
E. 
F. 
G. 
H. 
Insoluble 
9.98 
.38 
88.50 
.95 
5.99 
.58 
91.96 
1.35- 
50.74 
.30 
32.28 
13.91 
25.24 
5.30 
40.21 
25. 25 
96. 00 
Fe 2 3 , A1 2 3 
CaC0 3 
MgCOg 
99.81 
99.88 
97.23 
