|
Unit No. |
Description |
Thickness |
6
|
Brown, ferruginous below; gray above; poorly shown contains abundant Marginifera splendeus
|
2 - 3 ft.
|
5
|
Gray limy shale
|
+/- 8 ft.
|
4
|
Black, carbonaceous, fissile or platy, with layers of brown concretionary limestone bearing Marginifera splendeus
|
25 ft.
|
3
|
Bluish gray, argillaceous limestone concretions
|
0.6 ft.
|
2
|
Black, fissile shale
|
4 ft.
|
1
|
Bluish, fine-grained, weathers brown; contains Hurbocoelia, Cancrinella, etc. (checkerboard is RCM)
|
1.2 ft.
|
|