| Computer Code: |
HURD |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Quaternary Period (Q)
— Quaternary Period (Q) |
| Lithological Description: |
Sand and gravel. |
| Definition of Lower Boundary: |
Unconformable on the Gault but small satellite outcrops unconformable on 'Lower Chalk' bedrock. |
| Definition of Upper Boundary: |
At surface. |
| Thickness: |
About 2 m. |
| Geographical Limits: |
Restricted to local area between Girton and north-west Cambridge. |
| Parent Unit: |
Cam Valley Formation (CAMV)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
4th Terrace of River Cam [Obsolete]
|
| Stratotypes: |
| Type Area |
Small area of terrace about 500 m north-east of Howe House (Marr and King, 1932). |
| Reference(s): |
| Marr, J E, and King, W B R. 1932. Further notes on the Huntingdon Road gravels, Cambridge. Geological Magazine, 69, 175-178. |
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E188
|
