| Computer Code: |
ERIS |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Quaternary Period (Q)
— Quaternary Period (Q) |
| Lithological Description: |
Gravelly sand. |
| Definition of Lower Boundary: |
Unconformably overlies 'Middle Chalk'. |
| Definition of Upper Boundary: |
At surface. |
| Thickness: |
Up to 1.6 m. |
| Geographical Limits: |
Locally within about 1.5 km of Eriswell, Suffolk. |
| Parent Unit: |
Lark Valley Formation (LKVY)
|
| Previous Name(s): |
5th Terrace Of River Lark (Clayton 1983)
(-891)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
Adjacent to the Brandon Road about 0.5 km NE of Eriswell, Suffolk (Clayton, 1983). |
| Reference(s): |
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. |
| Clayton, A R. 1983. The sand and gravel resources of the country between Maidenhall and Barrow, Suffolk: description of 1:25000 Sheets TL76, TL77 and part of TL87. Mineral Assessment Report, 123, Institute of Geological Sciences, London. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
