CLARKE.] 
SLATES AKD SHALES. 
US 
KENTUCKY, GEORGIA, ALABAMA. 
A. Indurated carboniferous shale, in contact with the peridotite 
dike of Elliott County, Kentucky. Described by Diller in Bull 38. 
Analysis by T. M. Chatard, record No. 351. 
B. Fragment of shale included in the Elliott County dike. Analy- 
sis by Chatard, record No. 353. 
C. Bituminous shale, Dry Gap, Georgia. Analysis by L. G. Eakins, 
record No. 1316. P. R. C. 22. Described by Diller in Bull 150, p. 00. 
D. Middle Cambrian shale, Coosa Valley, near Blaine, Cherokee 
County, Alabama. Analysis by H. N. Stokes, record No. 1549. 
A. 
B. 
c. 
I). 
Si0. 2 
41.32 
20.71 
2. 59 
5. 46 
1.91 
9.91 
7.19 
.88 
35. 53 
18. 23 
2.4f 
4.81 
2.01 
21.17 
2. 53 
1.08 
1.40 
9. 00 
. 95 
.08 
.13 
51.03 
13.47 
S. (Hi 
1.15 
.78 
.41 
3. 16 
} ■« 
.31 
55.02 
ALO, 
21. 02 
Fe,< >., 
5. 00 
FeO 
1 . 54 
MgO 
2. 32 
Ca( ) 
1.60 
Na 2 < ) 
K 2 () 
.81 
3. 19 
Fi,< ) at 110° 
2.44 
JEI 2 above 110° 
8. 78 
.48 
.08 
.17 
5. 65 
Ti( >., 
. 65 
P,( ). 
. 06 
Mho 
BaO 
trace 
.04 
SrO 
trace 
Li.,( ) 
. 03 
SO, 
.02 
s 
7.29 
CI 
trace 
CO , 
. 55 
.88 
.83 
Carbonaceous matter 
. 32 
Fixed carbon 
13.11 
3. 32 
Volatile hydrocarbons 
Less = S 
100.0.°, 
100.26 
102.90 
2.74 
100.54 
100. 16 
