Kiamichi Shale
Geologic formation in Arkansas and Texas
From Wikipedia, the free encyclopedia
The Kiamichi Shale or Kiamichi Formation is a geologic formation in Arkansas[1] and Texas. It preserves fossils dating back to the Cretaceous period.
| Kiamichi Shale | |
|---|---|
| Stratigraphic range: Cretaceous | |
| Type | Formation |
| Unit of | Fredericksburg Group |
| Underlies | Woodbine Formation |
| Overlies | Goodland Formation |
| Thickness | 20 ft (6.1 m) in Arkansas[1] |
| Lithology | |
| Primary | Shale |
| Location | |
| Region | Arkansas, Texas |
| Country | United States |
| Type section | |
| Named by | Robert Thomas Hill[2] |
