Unit No. |
Description |
Thickness |
|
Overburden with Hertha at top
|
11 ft.
|
|
Limestone (large concretions)
|
0.7 ft.
|
|
Black shale
|
2.7 ft.
|
|
Black shale, blocky to thinly bedded where weathered
|
5 ft.
|
|
Black shale, blocky
|
5 ft.
|
|
Black shale, platy to blocky, & small concretions
|
3.5 ft.
|
|
Black shale, fissile where weathered
|
1.5 ft.
|
|
Limestone, fossiliferous
|
1 ft.
|
|
Black platy shale, poorly exposed
|
4.8 ft.
|
|
Limestone, with small brachiopods
|
0.8 ft.
|
|
Brown shale
|
0.1 ft.
|
|
Dense limestone weathers brown
|
0.8 ft.
|
|
Black shale, not well exposed
|
6.5 ft.
|
|
Platy black shale & large concretions. 3 feet exposed. Sample from middle foot
|
3 ft.
|