|
Unit No. |
Description |
Thickness |
1
|
Limestone, dark blue, dense, very hard, conchoidal fracture
|
0.6 ft.
|
2
|
Shale black
|
12 ft.
|
3
|
Limestone, as concretions, black weathers rusty
|
2 ft.
|
4
|
Shale, gray at top, mostly black
|
7 ft.
|
5
|
Limestone, dark brown, weathers rusty
|
? ft.
|
|