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Forest Marble Formation
Jurassic geological formation in England / From Wikipedia, the free encyclopedia
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.[1]
Quick Facts Type, Unit of ...
Forest Marble Formation | |
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Stratigraphic range: Bathonian 168–166 Ma | |
![]() 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 | ![]() |
Type section | |
Named for | Wychwood Forest |
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