|
Unit No. |
Description |
Thickness |
20
|
Limestone with flint bands (Threemile limestone of Wreford) with Wellerella, Rhipidomella (small) and Composita
|
|
19
|
Shale, calcareous with Chonetes etc
|
3.1 ft.
|
18
|
Limestone, shaly; with Pinna in erect position, Aviculopecten, Derbya, Juresania
|
1 ft.
|
17
|
Shale, yellowish green, to green below
|
1.9 ft.
|
16
|
Limestone
|
0.2 ft.
|
15
|
Shale, green, with calcareous veins in upper part
|
2.3 ft.
|
14
|
Shale, maroon
|
1.5 ft.
|
13
|
Shale, green, interbedded with calcareous veins
|
1.2 ft.
|
12
|
Shale, maroon
|
2.3 ft.
|
11
|
Shale, purple, with few blueish-green spots
|
3 ft.
|
10
|
Covered
|
4 ft.
|
|
Continued in next exposeure West
|
|
9
|
Limestone, flaggy
|
2.5 ft.
|
8
|
Limestone, shaly, splittery
|
2.5 ft.
|
7
|
Shale, calcareous
|
2 ft.
|
6
|
Shale, black and gray, mottled, splitter
|
6 ft.
|
5
|
Limestone, tough, with Juresania?
|
0.5 ft.
|
4
|
Limestone, shaly
|
0.5 ft.
|
3
|
Shale, calcareous
|
1 ft.
|
2
|
Limestone, conquinoid, with numerous bryozoa and fragmentary fossils
|
2 ft.
|
1
|
Shale, mostly covered
|
5 ft.
|
|