Type Formation Primary sand Extent London Basin Unit of Lambeth Group | Thickness <2 - 15 m Region southern England Named for Upnor | |
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Overlies Thanet Formation, Chalk Group Underlies Reading Formation, Woolwich Formation | ||
The Upnor Formation is a geological formation found in the London Basin of southeastern England. It is of Thanetian (Upper Paleocene) age. It lies unconformably on the Thanet Formation for most of its outcrop, but in the west it lies directly on Chalk Group. It is generally overlain either by the Reading Formation or the Woolwich Formation, but locally in north and east Kent it is overlain unconformably by the Harwich Formation. It forms the lowermost part of the Lambeth Group. The type section is at Lower Upnor Pit, north Kent.
References
Upnor Formation Wikipedia(Text) CC BY-SA