Ancholme Group
| Ancholme Group Stratigraphic range: Callovian-Kimmeridgian | |
|---|---|
| Type | Group |
| Sub-units | Kellaways Formation, Oxford Clay, West Walton Formation, Ampthill Clay, Kimmeridge Clay |
| Underlies | Portland Group |
| Overlies | Great Oolite Group |
| Thickness | 350m (in central/eastern Lincolnshire) |
| Lithology | |
| Primary | Mudstone |
| Other | Limestone, Marl |
| Location | |
| Region | England |
| Country | United Kingdom |
The Ancholme Group is a geologic group in England. It preserves fossils dating back to the Jurassic period. It has previously been referred to as the Ancholme Clay Group. The group consists of predominantly grey, marine mudstone and silty mudstone with beds of argillaceous limestone nodules.[1]
See also
References
- ↑ "Ancholme Group". bgs.ac.uk. British Geological Society. Archived from the original on 2015-05-25. Retrieved 2015-05-25.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014.
This article is issued from
Wikipedia.
The text is licensed under Creative Commons - Attribution - Sharealike.
Additional terms may apply for the media files.