|
Unit No. |
Description |
Thickness |
1
|
Florena shale - Wellerella, Dictyoclostus, Chonetes, echinoid plates and spines; Pseudofusulina very abundant in basal 0.2 feet
|
5 ft.
|
2
|
Cottonwood Limestone - upper massive member contains abundant Pseudofusulina; zone of fine pitting near middle; few rather small chert nodules below middle in zone; horn coral, crinoid stems rare
|
2.4 ft.
|
3
|
Limestone - slightly earthy; variable porosity; brown staining; fine grained; massive; small nodules of chert about 0.5 feet above middle; few scattered echinoid spines in upper 1 foot
|
2.7 ft.
|
4
|
Shale - clayey; olive brown
|
10 ft.
|
|