Unit No. |
Description |
Thickness |
1
|
Limestone - base of Three Mile
|
|
2
|
Covered
|
19.2 ft.
|
3
|
Mudstone - gray to light gray-blue; silty to limy; thin-bedded
|
1.75 ft.
|
4
|
Limestone - gray; mottled to banded; partly cherty. partly crystalline; fossil fragments; siltstone-like
|
2 ft.
|
5
|
Limestone - gray to buff; silty; thin uneven bedding
|
3.2 ft.
|
6
|
Covered
|
5.85 ft.
|
7
|
Shale - buff; thin-bedded; calcareous; abundant branching bryozoans, a few Derbya
|
2.05 ft.
|
8
|
Limestone - (or siltstone) gray; thin, uneven bedding
|
0.1 ft.
|
9
|
Limestone - (or siltstone) gray; partly crystalline; fossil fragments
|
0.6 ft.
|
10
|
Shale - buff; clayey; blocky to thin-bedded
|
0.3 ft.
|
11
|
Limestone - light buff gray; very fine grained with crystalline calcite irregular veins throughout; weathers buff
|
1.7 ft.
|
12
|
Shale - buff to olive; clayey to calcareous; thin, stringy bedding
|
3.85 ft.
|
13
|
Covered
|
3.55 ft.
|
14
|
Limestone - gray with buff clayey veins and tubules; very knobby bedding
|
0.45 ft.
|
15
|
Shale - olive green; finely blocky grading downward to thin calcareous, platy
|
1.95 ft.
|
16
|
Covered - including unit 15
|
4.1 ft.
|
17
|
Shale - light buff to light gray; impure; knobby
|
0.3 ft.
|
18
|
Limestone - buff to light gray; knobby bedded; impure
|
2.355 ft.
|
19
|
Shale - green; clayey
|
0.5 ft.
|