| Computer Code: |
BIDM |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Pleistocene Epoch (QP)
— Pleistocene Epoch (QP) |
| Lithological Description: |
Fluviatile gravel with sand: contains thin fossiliferous clay layers with a temperate molluscan fauna. Numerous artifacts of Acheulian type have also been recorded. |
| Definition of Lower Boundary: |
Unconformable, commonly chanelled base, resting on bedrock surface. |
| Definition of Upper Boundary: |
Ground surface. |
| Thickness: |
0 to 4m |
| Geographical Limits: |
River Great Ouse Valley, Central England. |
| Parent Unit: |
Ouse Valley Formation (OUSE)
|
| Previous Name(s): |
Third Terrace of the Ouse [Obsolete Name and Code: Use BIDM]
(-4465)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
The Spinney Pit, Biddenham, Bedfordshire. |
| Reference(s): |
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. |
| Prestwich, J. 1861. Note on some further discoveries of flint implements in beds of post-Pliocene gravel and clay, with a few suggestions to search elsewhere. Quarterly Journal of the Geological Society of London, Vol.17, 362-368. |
| Harding, P, Keen, D H, Bridgland, D R and Rogerson, R J. 1991. A Palaeolithic site rediscovered at Biddenham, Bedfordshire. Bedfordshire Archaeology, Volume 19, 87-90. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E185
|
