Forest Marble Formation
| Forest Marble Formation | |
|---|---|
| Stratigraphic range: Bathonian | |
| Forest Marble Formation exposed in Kirtlington Quarry, Oxfordshire | |
| Type | Geological formation | 
| Unit of | Great Oolite Group | 
| Underlies | Cornbrash Formation | 
| Overlies | White Limestone Formation, Athelstan Oolite Formation, Chalfield Oolite Formation, Corsham Limestone Formation, Frome Clay | 
| Thickness | Up to 5m thick in Buckinghamshire, 10 to 30m in Oxfordshire and Gloucestershire, 30 to about 50m in north Dorset, 30 to 75m in south Dorset | 
| Lithology | |
| Primary | Mudstone, Limestone | 
| Other | Siltstone, Sandstone | 
| Location | |
| Region | Bedfordshire, Buckinghamshire, Oxfordshire, Dorset | 
| Country | United Kingdom | 
| Type section | |
| Named for | Wychwood Forest | 
The Forest Marble is a geological formation in England. Part of the Great Oolite Group, it dates to the late Bathonian stage of the Middle Jurassic.