| Computer Code: |
RTFDD |
Preferred Map Code: |
notEntered |
| Status Code: |
Index Level |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Silt, clay and fine-grained sand with lenses of gravel. |
| Definition of Lower Boundary: |
Sharp, unconformable, generally planar contact on various older superficial deposits, most commonly till. |
| Definition of Upper Boundary: |
Ground surface, or sharp, undulating, conformable contact with younger superficial deposits, including peat and blown sand. |
| Thickness: |
To 12m |
| Geographical Limits: |
Britain to the north of the Humber-Ribble. |
| Parent Unit: |
Not Applicable (-)
|
| Previous Name(s): |
Raised marine/beach/estuarine deposits of late-glacial age [Obsolete Name and Code: Use RTFDD]
(-3012)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
The southern shore of the Inverness Firth, 2 to 18km northeast of Inverness. Fletcher et al, 1996 |
| Reference(s): |
| Fletcher, T P et al. 1996. Geology of the Fortrose and eastern Inverness district. Memoir of the British Geological Survey, Sheet 84W (Scotland). |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S084
|
