 |
| Unit No. |
Description |
Thickness
ft. |
| |
Cottonwood limestone member |
|
| 12 |
Limestone, massive, full of fusulinids, with
two zones of flint nodules in the middle |
2 |
| 11 |
Limestone, massivel fusulinids and zone of flint
nodules in the upper 0.5 foot; very small flint nodules;
few Derbya and a coral in the lower 0.5 foot |
1.8 |
| 10 |
Limestone, massive, with flint nodules, Pinna, and
a coral at the top |
1 |
| 9 |
Limestone |
0.4 |
| 8 |
Limestone, massive |
1.2 |
| 7 |
Limestone |
0.4 |
| 6 |
Mudstone, splittery, with Aviculopecten and Pinna |
0.4 |
| |
Eskridge shale formation |
|
| 5 |
Shale, green |
5.5 |
| 4 |
Mudstone, soft, roughly weathered, light-green
at the top and base, light-purple in the middle |
3 |
| 3 |
Shale, green |
1 |
| 2 |
Shale, purple |
4 |
| 1 |
Shale, red |
3 |
|
