|
Unit No. |
Description |
Thickness |
|
Schroyer Limestone
|
|
10
|
Limestone, upper 2 ft. gray, massive, non-cherty; middle portion, cherty; base shaly; combined thickness
|
9.5 ft.
|
9
|
Shale and limy material
|
4 ft.
|
8
|
Limestone, dark gray, badly weathered
|
2.25 ft.
|
|
Havensville Shale
|
|
7
|
Shale, gray
|
2 ft.
|
6
|
Limestone, shaly
|
0.5 ft.
|
5
|
Shale, bluish-gray
|
0.66 ft.
|
4
|
Limestone, gray, earthy
|
0.58-0.75 ft.
|
3
|
Shale, gray
|
2 ft.
|
2
|
Shale, bright olive, argillaceous
|
7.75 - 8 ft.
|
1
|
Fourmile Limestone
|
11 ft.
|
|