| Unit No. |
Description |
Thickness
ft. |
| 12 |
RESIDUAL--some fragments of sandstone |
0.5 |
| 11 |
CLAY--yellow to gray |
1.5 |
| 10 |
CLAY--lignitic, slightly silty; dark gray with some yellow stain |
2.5 |
| 9 |
SILT--yellow and gray |
2.2 |
| 8 |
CLAY--gray with two horizontal 0.3' yellow bands, concretionary limonite |
4.2 |
| 7 |
CLAY--gray with slight yellow stain |
2.6 |
| 6 |
CLAY--slightly silty, gray lignite particles; gypsum |
2.5 |
| 5 |
CLAY--light gray, some yellow on slickenside joints, some gypsum |
1.7 |
| 4 |
CLAY--gray, some yellow stain on joints, lignite particles, some gypsum |
3.3 |
| 3 |
CLAY--slity, gray with considerable yellow stain |
1.7 |
| 2 |
CLAY--very silty, gray, contains lignite particle and fine gypsum |
3.0 |
| 1 |
CLAY--very silty, gray; contains lignite particles and some fine gypsum, has white sand partings and concretionary limonite |
2.0 |
