338 
HUBBARD AND CRONEIS 
5. A covered interval on wagon road with soft shaly lime- 
stone and calcareous shale in the float. 117 feet. 
6. Limestone and shales alternating. Six limestone horizons 
of gray to blue resistant beds. No chert nor calcite and rarely 
fossiliferous. Argillaceous and breaking into splintery pieces be- 
cause the jointing is both at right angles and oblique to the 
bedding. Six shale layers of soft, crumbly, yellow and red ma- 
terial, weathering into a reddish yellow, sticky mud, which 
covers up the slopes. 
Shales 
17 feet (bottom) 
Limestone 
10 
a 
Shales 
.....: ....18 
a 
Limestones 
1 
<< 
Shales 
3 
<( 
Limestones 
3 
a 
Shales 
10 
a 
Limestones 
4 
a 
Shales 
6 
(( 
Limestones 
5 
Shales 
3 
<< 
Limestones 
8 
“ (Top) 
Total 
88 
<< 
Analysis of Moccasin Limestone from 
the Pearisburg section^- 
(J. H. Gibboney, Analyst) 
1 
2 
Insoluble 
... 11.73 
7.66 
Alumina 
■■■ 1.48 
0.82 
Iron oxide 
.... 47.78 
Lime 
50.38 
Calcium carbonate 
... 85.32 
89.96 
Magnesia 
0.24 
0.35 
Magnesium carbonate 
... 0.58 
0.76 
Total 
... 99.11 
99.20 
1. Impure, drab 
limestone. 
2. Red, clayey limestone. 
Bassler, R. S., “Cement Resources of Virginia.” p. 194. 
