| Computer Code: |
RSBQD |
Preferred Map Code: |
RSBLD |
| Status Code: |
Full |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Gravel, sandy, silty, partly clast-supported, poorly sorted, mainly of cobble to boulder grade with subsidiary beds of finer gravel and sand. |
| Definition of Lower Boundary: |
Generally an uncomformable contact with till or bedrock. |
| Definition of Upper Boundary: |
At the ground surface. |
| Thickness: |
To 10 m. |
| Geographical Limits: |
Northern England and Scotland. |
| Parent Unit: |
Raised storm beach deposits (RSBD)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Area |
The islands of Tiree and Coll of the Inner Hebrides, where the storm beaches form discontinuous, arcuate, asymmetrical ridges up to 10 m high, commonly resting on rock platforms mapped as Raised Beach Deposits of Late-glacial age. Henney and Merritt, 2002; Merritt and Henney, 2003. |
| Reference(s): |
| Merritt, J W and Henney, P J. 2003. An assessment of aggregate resources and requirements on Coll. BGS commercial report on behalf of Scottish Natural Heritage. |
| Henney, P J and Merritt, J W. 2002. An assessment of aggregate resources and requirements on Tiree. BGS commercial report on behalf of Scottish Natural Heritage. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
