|
Unit No. |
Description |
Thickness |
|
Stearns shale formation
|
|
27
|
Limestone, flaggy
|
2 ft.
|
26
|
Shale, gray
|
5 ft.
|
25
|
Limestone
|
0.5 ft.
|
24
|
Mudstone, splittery
|
1.5 ft.
|
23
|
Shale, calcareous, splittery
|
1 ft.
|
22
|
Shale, green
|
2 ft.
|
21
|
Shale, dark-green
|
1 ft.
|
20
|
Shale, purple
|
2.5 ft.
|
19
|
Shale, dark-green
|
0.7 ft.
|
18
|
Shale, purple
|
0.8 ft.
|
17
|
Shale, dark-green
|
0.3 ft.
|
16
|
Mudstone, cavernous, light-gray with green
|
1 ft.
|
15
|
Shale, calcareous
|
0.7 ft.
|
14
|
Limestone, banded, with poorly-preserved pelecypods
|
1 ft.
|
13
|
Mudstone, splittery
|
1 ft.
|
12
|
Shale, dark-gray, splittery, calcareous below
|
2 ft.
|
|
Beattie limestone formation
|
|
|
Morrill limestone member
|
|
11
|
Limestone
|
1 ft.
|
10
|
Shale, calcareous
|
1 ft.
|
9
|
Limestone
|
1.5 ft.
|
|
Florena shale member
|
|
8
|
Shale, calcareous
|
2.5 ft.
|
|
Cottonwood limestone member
|
|
7
|
Limestone, massive, full of fusulinids
|
2 ft.
|
6
|
Limestone, massive, with very numerous fragmentary fossils; echinoid spines
|
4 ft.
|
|
Eskridge shale formation
|
|
5
|
Mudstone, splittery
|
1 ft.
|
4
|
Shale, green
|
4 ft.
|
3
|
Shale, green, calcareous
|
1 ft.
|
2
|
Mudstone, green, with Aviculopecten and Juresania
|
1 ft.
|
1
|
Shale, green
|
3 ft.
|
0
|
Shale, red
|
1+ ft.
|
|