Woburn Sands Formation
Woburn Sands Formation Stratigraphic range: Late Aptian- Early Albian | |
---|---|
Type | Geological formation |
Unit of | Lower Greensand Group |
Underlies | Gault Formation |
Overlies | Jurassic or older rocks, usually mudstones of the Ancholme Group like the Oxford Clay, Kimmeridge Clay and Ampthill Clay |
Thickness | up to 120 metres (390 ft) |
Lithology | |
Primary | Sandstone |
Other | Clay |
Location | |
Region | Europe |
Country |
|
Extent | Bedfordshire, Buckinghamshire, Cambridgeshire |
Type section | |
Named for | Woburn, Bedfordshire |
Location | Disused fuller's earth workings between Woburn Sands and Woburn |
The Woburn Sands Formation is a geological formation in England. Part of the Lower Greensand Group, it is the only unit of the group where it occurs, and thus is sometimes simply referred to as the 'Lower Greensand' in these areas. It was deposited during the late Aptian to early Albian stages of the Early Cretaceous. The lithology consists of sandstone or loose sand with rare wisps or thin seams of clay.[1]
References
- ↑ "Woburn Sands Formation". BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 1 August 2018.
This article is issued from
Wikipedia.
The text is licensed under Creative Commons - Attribution - Sharealike.
Additional terms may apply for the media files.