328 
CEMENT MATERIALS AND INDUSTRY. 
[BULL. 248. 
Portland -cement materials their value depends entirety upon their 
nearness to fuel supplies, for they are neither thick enough nor pure 
enough to compare favorably under equal conditions with the Green-;) 1 
brier or Trenton limestones. 
Analyses of Coal Measures limestones, West Virginia. 
Silica(Si0 2 ) 
Alumina (A1 2 3 ) 
Iron oxide (Fe 2 3 ) . . . 
Lime carbonate 
(CaC0 3 ) 
Magnesium carbonate 
(MgC0 3 )_ 
Water *. 
10.24 
3.52 
81.40 
3.32 
1.24 
2 
10.88 
1.92 
86.80 
Tr. 
.60 
3 
13.28 
1.68 
Tr. 
.64 
32.04 
7.00 
84.4056.48 
2.48 
2.00 
0.92 
.96 
95.52 
1.88 
.76 
10.33 
.90 
[85. 75] 
[2. 26] 
.05 
1.53 
.96 
[95. 10] 
[1.95] 
.10 
1.60 
1.60 
96.20 
Tr. 
.60 
7.20 
2.00 
89.72 
Tr. 
1.08 
1.7C 
S3. 92 !' 
1. Two and one-half mile southeast of Kingwood. Rogers's " Geology of the Virginias," page 400. 
2, 3. Ten Mile Creek, 1 mile from mouth, Kanawha County. Rogers'*s "Geology of the Virginias. 
page 524. 
4. Hughes Creek, Kanawha County. Rogers's " Geology of the Virginias," page 400. 
5. Clarksburg. Rogers's "Geology of the Virginias," page 401. 
6. 7. Moundsville Narrows, 12 miles below Wheeler. Bull. U. S. Geol. Survey, No. 9, page 17. 
8, 9, 10. Two Mile Creek, Kanawha County. Rogers's "Geology of the Virginias," page 525. 
PORTLAND CEMENT INDUSTRY OF WEST VIRGINIA. 
). 
West Virginia has at present only one Portland-cement plant. This 
is the mill of the Buckhorn Portland Cement Company, located on the ( • 
Cheat River at Manheim. 
The materials used are the Greenbrier limestone, shales of the sameij 
series, and Quaternary clays from the river flats. Analyses of these « i 
materials, by R. L. Humphrey, follow, and are quoted from Engi- 
neering News, volume 50, page 409. 
Analyses of cement materials, Manheim, W. Va. 
Silica (SiG 2 ) 
Alumina ( A1 2 3 ) 
Iron oxide (Fe 2 3 ) 
Lime carbonate ( CaC0 3 ) 
Magnesium carbonate 
(MgC0 8 ) 
Limestone. 
Lower. 
23. 40-20. 20 
| 9. 10- 8. 80 
60. 31-68. 89 
Tr. 
Middle. 
18. 60-13. 08 
7. 60- 6. 12 
72. 27-80. 09 
Tr.- . 61 
Shale. 
Upper. 
8. 84- 2. 92 
62.74 
5.04- 1.82 
19.40 
85. 00-94. 00 
.38 
. 72- 1. 10 
1.41 
Clay 
<iS. 16 
16. 18 
.42 
1.04 
