|
Unit No. |
Description |
Thickness |
|
Flowerpot Shale
|
|
10
|
Sandstone, very fine-grained, silty, friable, gypsiferous, pink (7.5YR7/4); forms slight ledge
|
4.0 ft.
|
9
|
Shale, slightly silty, gypsiferous, thin-bedded, reddish-brown
|
15.4 ft.
|
8
|
Sandstone, gypsiferous, thin (0.5 foot), pink, interbedded with reddish-brown silty shales
|
4.5 ft.
|
7
|
Siltstone, sandy dolomitic, gypsiferous, white (2.5Y8/0) to pink
|
0.4 ft.
|
6
|
Shale, gypsiferous, weak-red (2.5YR5/2) mottled gray (7.5YR6/0)
|
7.3 ft.
|
5
|
Siltstone, sandy, light reddish-brown (5YR6/4), and intergrown gypsum (selenite and satin spar)
|
0.9 ft.
|
4
|
Clay shale, blocky, reddish-brown (2.5YR4/4); contains numerous gypsum veins
|
13.5 ft.
|
3
|
Siltstone, argillaceous, sandy, light greenish-gray (5G7/1); contains a few thin streaks of clay shale and clear colorless gypsum veins. Very slightly calcareous
|
0.3 ft.
|
2
|
Sandstone, very fine, and sandy siltstone; white (5YR8/1) mottled reddish-brown; cemented with gypsum. Coarser-grained at the top
|
5.0 ft.
|
1
|
Clay shale, silty, blocky to splintery, reddish-brown (2.5YR4/4); contains numerous gypsum veins
|
15 ft.
|
|