| 词条 | Upnor Formation |
| 释义 |
| name = Upnor Formation | image = Lambeth Group Gilbert's Pit.jpg | caption = Exposure in Gilbert's Pit. Dark grey clays, and light grey shelly clays of the Woolwich Formation overlying yellow-brown weathering sands of the Upnor Formation | type = Formation | age = Thanetian | period = Paleogene | prilithology = sand | otherlithology = | namedfor = Upnor | namedby = | region = southern England | country = | coordinates = | unitof = Lambeth Group | subunits = | underlies = Reading Formation, Woolwich Formation | overlies = Thanet Sand, Chalk Group | thickness = <2 - 15 m | extent = London Basin | area = | map = | map_caption = }} 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.[1] 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. References1. ^{{cite web | url=http://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=UPR | title=Upnor Formation | publisher=British Geological Survey | work=The BGS Lexicon of Named Rock Units | accessdate=31 July 2016}} 3 : Geology of London|Paleogene England|Geologic formations of England |
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