| Unit No. |
Description |
Thickness
ft. |
| 20 |
Residual |
2.0 |
| 19 |
Clay--slightly silty, gray with some buff and yellow, slight limonitic concretions at top |
5.6 |
| 18 |
Sandstone--silty to fine, gray to yellow |
1.3 |
| 17 |
Clay--gray with some red, yellow and pink stain, some limonitic concretions near bottom |
1.7 |
| 16 |
Sandstone--very fine to resistant siltstone, gray to buff limonitic specks, calcareous "quartzite" horizon |
1.7 |
| 15 |
Clay--ray, red, and buff mottled with some yellow stain, some limonite specks near bottom |
0.8 |
| 14 |
Clay--light gray with red mottling |
4.0 |
| 13 |
Siltstone--irregularly consolidated, concretionary hematite specks and some gypsum, irregular top to bottom |
0.7-1.2 |
| 12 |
Clay--slightly silty, light gray and red mottled; contains very irregular silt and sand pockets, some vertical filled cracks, considerable gypsum |
6.0 |
| 11 |
Clay--slightly silty, light gray and red mottled; slight yellow stain and gypsum in upper part |
5.7 |
| 10 |
Clay--very silty, gray; gypsum and pyrite present |
1.0 |
| 9 |
Clay--gray, irregular in thickness, gypsum and pyrite |
1.1 |
| 8 |
Clay--slightly silty, gray with some red mottling |
2.1 |
| 7 |
Silt--gray with yellow sand streaks, irregular |
1.0 |
| 6 |
Sandstone--medium to fine, yellow |
1.2-1.5 |
| 5 |
Clay--slightly silty, gray, pink and brown with slight yellow stain, some gypsum |
1.6 |
| 4 |
Silt--clayey, gray with brown and yellow stain |
2.5 |
| 3 |
Clay--gray and brownish red mottled with gypsum toward top |
5.0 |
| 2 |
Clay--very silty, light gray with slight red mottling |
0.5-5.3 |
| 1 |
Clay--mostly plastic, gray and red mottled |
5.3 |
