Carstone Formation
| Carstone Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation | 
| Underlies | Gault Formation, Hunstanton Formation | 
| Overlies | Various Paleozoic to Jurassic units | 
| Thickness | Generally about 5 m but up to 18.9 m | 
| Lithology | |
| Primary | Sandstone | 
| Other | Conglomerate | 
| Location | |
| Region | Europe | 
| Country | England | 
| Extent | Cambridgeshire, Lincolnshire, Norfolk | 
The Carstone Formation is a geological formation in England. It preserves fossils dating back to the Albian stage of the Cretaceous period. It predominantly consists of "greenish-brown (rusty when weathered), thick-bedded, cross-bedded, oolitic ferruginous sandstone".