Unit No. |
Description |
Thickness |
8
|
Winterset limestone not well exsposed yet in place lithology indicates Winterset rather than Canville
|
|
7
|
Mostly sandstone some sandy shale
|
16 ft.
|
6
|
Sandstone thin beds
|
3.4 ft.
|
5
|
Sandstone massive
|
3 ft.
|
4
|
Sandstone, cross bedded; thin beds; seen under bridge
|
7 ft.
|
3
|
Clay shale
|
10.8 ft.
|
2
|
Covered
|
5.4 ft.
|
1
|
Limestone - B. Falls - brown granular and crystalline - fairly massive beds
|
2 - 3 ft.
|
|
Note: No. 4 shows unique cross bedding probably true [u]delta conditions[/u]
|
|
|
This and section in 21-31-18 E indicates pinching out of Stark shale and Canville limestone in 1/2 mile to North of this section
|
|