Harwich Formation
| Harwich Formation Stratigraphic range: Ypresian | |
|---|---|
| Type | Formation |
| Unit of | Thames Group |
| Sub-units | Blackheath Member |
| Underlies | London Clay Formation |
| Overlies | Lambeth Group |
| Thickness | <2-24 m |
| Lithology | |
| Primary | sand, silt & clay |
| Other | gravel |
| Location | |
| Region | southeastern England |
| Country | United Kingdom |
| Extent | London Basin |
| Type section | |
| Named for | Harwich |
The Harwich Formation is a geological formation found in the London Basin of southeastern England. It is Ypresian (early Eocene) in age. It lies unconformably on the Lambeth Group over most of its extent, but may overlie either the Thanet Formation or the Chalk Group to the south. It is overlain by the London Clay Formation.[1]
References
- ↑ "Harwich Formation". The BGS Lexicon of Named Rock Units. British Geological Survey. Retrieved 31 July 2016.
This article is issued from Wikipedia - version of the 9/15/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.