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Harefield Pit is a 1.8-hectare geological Site of Special Scientific Interest in Harefield in the London Borough of Hillingdon. It occupies much of a partially filled-in chalk quarry. It has two entries in the Geological Conservation Review database.

It is an important Tertiary site in the London Basin, which displays a sequence through the Upper Chalk, Reading Beds and London Clay. It is the only known source of charophytes in the Reading Beds, and these have potential for correlation with other localities in Europe.

Natural England has cast the site as "unfavourable declining" as the Reading Beds are not visible due to covering by vegetation. It is set behind Lovett Road, without public access.

See also

• List of Sites of Special Scientific Interest in Greater London

References

1. "Designated Sites View: Harefield Pit". Sites of Special Scientific Interest. Natural England. Retrieved 14 March 2021.
2. ^ "Natural England, Harefield Pit citation" (PDF). Archived from the original (PDF) on 2012-10-24. Retrieved 2012-06-19.
3. "Map of Harefield Pit SSSI". Natural England.
4. "Harefield (Palaeogene)". Joint Nature Conservation Committee. Retrieved 15 January 2016.
5. "Harefield (Tertiary Palaeobotany)". Joint Nature Conservation Committee. Retrieved 15 January 2016.
6. Natural England, SSSI Unit information, Harefield Pit

51°35′53″N 0°29′10″W / 51.598°N 0.486°W / 51.598; -0.486

• Sites of Special Scientific Interest in London
• Geology of London
• Chalk pits
• Geological Conservation Review sites