| Computer Code: |
RMBDD |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Gravel and sand, commonly silty. Gravel typically cobble grade, poorly sorted, clast supported with subangular to rounded clasts. Sand mainly medium-grained. |
| Definition of Lower Boundary: |
Sharp, unconformable, generally planar, shelving contact on various older superficial deposits, most commonly till. |
| Definition of Upper Boundary: |
Ground surface, or sharp, undulating, conformable contact with younger superficial deposits, peat and blown sand. |
| Thickness: |
Up to 10 m. |
| Geographical Limits: |
Britain to the north of the Tees-Ribble. |
| Parent Unit: |
Raised beach deposits (RBDU)
|
| Previous Name(s): |
Raised beach deposits of late-glacial age [Obsolete Name and Code: Use RBDLG, RMBDD]
(-2395)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
The southern shore of the Inverness Firth, 2 to 18 km 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
|
