| Matfield Formation Matfield Shale | |
| Type: | Formation |
| Period: | Permian |
| Age: | Permian |
| Prilithology: | Shale and mudstone |
| Otherlithology: | Limestone |
| Namedfor: | Matfield Township, Chase County, Kansas |
| Namedby: | Prosser, C.S. |
| Year Ts: | 1902 |
| Region: | Kansas |
| Country: | United States |
| Unitof: | Chase Group |
| Subunits: | Blue Springs Shale Kinney Limestone Wymore Shale |
| Underlies: | Flinty Florence Limestone Member of the Barneston Formation |
| Overlies: | Flinty Wreford Limestone |
The Matfield Shale is a geologic formation in Kansas from the Permian period.[1] [2] The unit is recognizable in several road cuts in the Flint Hills, especially in the vicinity of the Kansas River, by 4 or 5 beds of red/maroon shale.