| Computer Code: |
HNRD |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Ipswichian Stage (QI)
— Ipswichian Stage (QI) |
| Lithological Description: |
Interglacial predominantly fine-grained organic muds, shelly sand and silty marl found within terrace sand and gravel sequence. |
| Definition of Lower Boundary: |
Rests on sand and gravel of the 3rd terrace on the River Cam. |
| Definition of Upper Boundary: |
Overlain by sand and gravel of the 3rd terrace of the River Cam. |
| Thickness: |
Up to c. 8 m. |
| Geographical Limits: |
Restricted to small area between Cambridge and Histon. |
| Parent Unit: |
Cam Valley Formation (CAMV)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
0-8.84m in borehole at Sewage Pumping Station adjacent to road about 600m south of Ashbury Camp. BGS Registered No. TL46SW/165 [TL4441 6101] Sparks and West, 1959 |
| Reference(s): |
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. |
| Sparks, B W and West, R G. 1959. The palaeoecology of the interglacial deposits at Histon Road, Cambridge. Eiszeitalter und Gegenwart, 10, 123-143. |
| Worssam, B C and Taylor, J H. 1969. The geology of the country around Cambridge. Memoir of the Geological Survey of Great Britain, Sheet 188 (England and Wales). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E188
|
