|
Unit No. |
Description |
Thickness |
18
|
Covered, part is overburden
|
13.6 ft.
|
17
|
Limestone (Long Creek), center portion weathered porous or honeycombed
|
1.8 ft.
|
16
|
Shale
|
14.1 ft.
|
15
|
Limestone, massive, hard
|
0.6 ft.
|
14
|
Shale (Hughes Creek), mostly covered
|
13.4 ft.
|
13
|
Limestone, soft, impure, argillaceous, contains large number of brachiopods
|
|
12
|
Shale, greenish-gray, upper part limy, overlies Americus limestone
|
8.6 ft.
|
11
|
Limestone (Americus), massive
|
1.2 ft.
|
10
|
Shale, very badly weathered, to clay
|
0.5 ft.
|
9
|
Limestone, weathers in slabs
|
0.5 ft.
|
8
|
Limestone (Houchen Creek), weathers into small, slabby pieces
|
2.7 ft.
|
7
|
Shale, gray
|
17.9 ft.
|
6
|
Limestone
|
0.5 ft.
|
5
|
Shale (Stine), gray, lower 4' contains green and red zones
|
6.0 ft.
|
4
|
Limestone
|
0.4 ft.
|
3
|
Shale, gray to dark gray, clayey
|
12.1 ft.
|
2
|
Shale, black, thin-bedded, fissile
|
0.6 ft.
|
1
|
Shale, greenish-gray
|
1.7 ft.
|
-
|
Covered below
|
|
|