| Computer Code: |
NCRC |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Pliocene Epoch (NP)
— Pleistocene Epoch (QP) |
| Lithological Description: |
Composite: Norwich Crag Formation: mainly reddish to yellow (oxidised) sand above watertable, green where saturated. Glauconitic, fine- to coarse-grained, micaceous, locally shelly. Includes gravels and clay layers particularly towards top of sequence. Commonly decalcified. Basal stone bed composed of flint, overlain by shelly sand; cross-bedded, overlain by sand and green-brown clay; flasar-bedded, overlain by quartz-quartzite gravel (outwash suite). Red Crag Formation: shelly sand, silt and clay. [Generic description]. |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
Crag Group (CRAG)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| none recorded or not applicable |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E207
|
