OHIO, OKLAHOMA. 
Analyses of marls and clays used in Ohio. 
275 
ica (Si0 2 ) 
umina (A1 2 3 ) 
m oxide (Fe 2 3 ) . .. 
me(CaO) 
ignesia (MgO) 
kalies (K 2 0, Na 2 0). 
lphur trioxide (S0 3 ) 
rbon dioxide (C0 2 ) 
Clays. 
1 
2 
3 
4 
5 
1.98 
0.26 
47. 45 
59. 10 
51.56 
} 
.97 
.20 
19. 85 
24. 01 
{ 
14. 50 
3. 84 
50. 95 
52. 86 
17. 80 
2.2 
9.8 
.55 
ii.d. 
.09 
2.0 
- n.d. 
.12 
n. d. 
4.34 
n. d. 
n.d. 
. 10 
n.d. 
1.03 
n. d. 
tr. 
40. 03 
n. d. 
.57 
n.d. 
7.7 
3. Buckeye Portland Cement Company. Mineral Industry, vol. 1, p. 52. 
4, 5. Castalia Portland Cement Company. 
PORTLAND-CEMEXT RESOURCES OF OKLAHOMA. 
Limestones occur in three distinct areas in Oklahoma, and are of 
ree different geologic ages — Cretaceous, Carboniferous, and Ordo- 
cian ("Lower Silurian' 1 ). Little is on record concerning the exact 
tribution or composition of any of these limestones. In general, 
may be said that those of Cretaceous age occur in the extreme west- 
n part of the Territory; that they are shell limestones and probably 
w in magnesia. The following description of the Carboniferous 
d Ordovician limestones is taken from a paper by Mr. C. N. Gould, 
{Iblished in Stone, volume 23, pages 351-354. Though containing no 
Ealyses, it indicates the general distribution and value of the lime- 
f pries in question. 
r Inhere are in Oklahoma two localities from which limestone for building purposes 
Ifiy be obtained in large quantities. The first of these is in the northeastern part 
cjthe Territory, in Kay, Noble, Payne, and Pawnee counties, and in the Osage, 
mw, Ponca, and Otoe reservations. The second locality is in the newly-opened 
Iowa and Comanche Reservation, in the eastern part of Comanche County. It is 
t* purpose of this article to discuss in some detail the rock of the two localities and 
■indicate briefly the logical market of the stone of each locality. 
The limestone in the northeastern part of the Territory is obtained from the south- 
eft part of the Flint Hills. The Flint Hills extend practically north and south for 
lire than 300 miles, from the Platte to the Cimarron. They are hills of erosion 
cj^ved out by the action of water from the heavy limestone ledges which occur in 
tjb Upper Carboniferous and Lower Permian of the region. Much of the Kansas 
raiding stone is obtained from this range of hills. Quarries at Manhattan, Junction 
Uy, Cottonwood Falls, Florence. Winfield, and Arkansas City, Kans., as well as 
tjpse near the mouth of the Platte in eastern Nebraska, are from the same general 
lijrizon. 
The Arkansas River on its way from the mountains to the Mississippi strikes the 
int Hills near the Kansas-Oklahoma line. From Pueblo to Arkansas City the 
rer flows over soft yielding rocks that have been hollowed out by water into a 
