Eskridge Shale
| Eskridge Shale | |
|---|---|
| Stratigraphic range: Early Permian | |
Fresh excavation of Eskridge Shale (green and red mudstone band and gray marine shale) above the Neva Limestone and below the Cottonwood Limestone, Stag Hill roadcut of K-18 southwest of Manhattan, Kansas, 2013. | |
| Type | Formation |
| Unit of | Council Grove Group |
| Lithology | |
| Primary | mudstone paleosol |
| Other | marine shale |
| Location | |
| Region | Kansas, Oklahoma, Nebraska |
| Country | United States |
| Type section | |
| Named for | Eskridge, Kansas |
The Eskridge Shale or Eskridge Formation is an Early Permian geologic formation in Kansas. Its outcrop runs north–south through Kansas, extending into Oklahoma and Nebraska. While named a shale, it features extensive, spectacular red and green stacked palosol mudstones, these mudstones showing prominent vertical tubular carbonate concretions, possibly from roots or vertebrate burrows.