| Computer Code: |
CEAR |
Preferred Map Code: |
cear |
| Status Code: |
Full |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Sand and gravel; clasts mainly psammite, with granodiorite, granite and porphyry; large scale deltaic cross-bedding common. |
| Definition of Lower Boundary: |
Unconformable on bedrock; erosional on Pattack Till Formation; gradational on Linn of Pattack Silt Formation. |
| Definition of Upper Boundary: |
Unconformable or glacitectonic contact with Ardverikie Till Formation. |
| Thickness: |
5m |
| Geographical Limits: |
Central Grampian Mountains of Scotland. |
| Parent Unit: |
Central Grampian Glacigenic Subgroup (CGDR)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
River cliff of Allt Coire na Ceardaich. Merritt et al., 1999. |
| Reference(s): |
| Merritt, J W, 1999. The Quaternary geology of the Dalwhinnie District. British Geological Survey Technical Report WA/99/14R. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S063
|
