| Computer Code: |
SKAV |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Quaternary Period (Q)
— Quaternary Period (Q) |
| Lithological Description: |
Sand and fine to medium gravel in upper part overlying interbedded marl and sandy fine gravel or laminated fine sand with plant debris and molluscs. |
| Definition of Lower Boundary: |
Unconformable on Gault mudstone bedrock. |
| Definition of Upper Boundary: |
At surface. |
| Thickness: |
Up to about 6 m, but more commonly between 2.5 and 4 m. |
| Geographical Limits: |
Restricted to area adjacent to Sidgwick Avenue, Cambridge, may be extended to cover other areas mapped as 2nd terrace of the River Cam. |
| Parent Unit: |
Cam Valley Formation (CAMV)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
2nd Terrace Of River Cam
|
| Stratotypes: |
| Type Area |
Area of 2nd terrace adjacent to Sidgwick Avenue on west side of River Cam. Lambert et al., 1963. |
| Reference(s): |
| Lambert, C A, Pearson, R G and Sparks, B W. 1963. A flora and fauna from late Pleistocene deposits at Sidgwick Avenue, Cambridge. Proceedings of the Linnean Society, 174, 13-29. |
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. |
| Penning, W H and Jukes-Browne, A J, 1881. Geology of the neighbourhood of Cambridge. Memoir of the Geological Survey, Old Series Sheets 51SW and part 51NW (England and Wales). |
| 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
E205
|
