Echkar Formation
| Echkar Formation | |
|---|---|
| Stratigraphic range: Late Albian-Cenomanian ~ | |
| Type | Geological formation | 
| Unit of | Tegama Group | 
| Underlies | Farak Formation | 
| Overlies | Elrhaz Formation | 
| Lithology | |
| Primary | Sandstone | 
| Other | Claystone | 
| Location | |
| Coordinates | 17°54′N 5°36′E / 17.9°N 5.6°E | 
| Approximate paleocoordinates | 2°48′N 0°24′E / 2.8°N 0.4°E | 
| Region | Agadez Region | 
| Country | Niger | 
| Extent | Iullemmeden Basin | 
| Type section | |
| Named for | Echkar, Aderbissinat | 
The Echkar Formation is a geological formation comprising sandstones and claystones in the Agadez Region of Niger, central Africa.