Bierton Clay Pit

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Bierton Clay Pit
Site of Special Scientific Interest
Bierton Clay Pit 2.JPG
Location Buckinghamshire
Grid reference SP839157
InterestGeological
Area0.1 hectares
Notification 1986
Location map Magic Map

Bierton Clay Pit is a 0.07-hectare (0.17-acre) geological Site of Special Scientific Interest in Bierton in Buckinghamshire. [1] [2] It is listed by the Joint Nature Conservation Committee as a Geological Conservation Review site. [3]

This disused clay pit exposes a section from the late Jurassic Kimmeridgian and Tithonian stages, between about 157 and 145 million years ago. It is the only exposure of the northern end of the Portland Beds, and shows the relationship between the Beds and the Hartwell Clay. It also gives evidence of a period of erosion followed by a rise in sea level. [1] [4]

The pit is now flooded and no geology is visible. [4] It can be viewed from a footpath between Barnett Way and Brick Kiln Lane.

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References

  1. 1 2 "Bierton Clay Pit citation" (PDF). Sites of Special Scientific Interest. Natural England. Archived from the original (PDF) on 25 January 2016. Retrieved 7 January 2016.
  2. ↑ "Map of Bierton Clay Pit". Sites of Special Scientific Interest. Natural England. Retrieved 7 January 2016.
  3. ↑ "Bierton (Portlandian - Berriasian)". Nature Conservation Committee. Retrieved 9 January 2016.
  4. 1 2 "Bierton Clay Pit SSSI". Bucks Geology. Retrieved 7 January 2016.

Coordinates: 51°50′03″N0°46′59″W / 51.8341°N 0.7831°W / 51.8341; -0.7831

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