| Computer Code: |
KEBR |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Clayey silt and fine-grained sand with well dispersed, angular lithic pebbles, chiefly of psammite and sandstone. Shell fragments particularly common towards the top of the unit. Contains a mid-boreal, shallow water fossil assemblage of Windermere Interstadial age. |
| Definition of Lower Boundary: |
Conformable contact with Ardersier Silt Formation. |
| Definition of Upper Boundary: |
Erosional contact with Longman Gravel Formation. |
| Thickness: |
To 30m |
| Geographical Limits: |
Area around the Inner Moray Firth and Beauly Firth, Inverness. Geological Sheet 84W (Fortrose). |
| Parent Unit: |
British Coastal Deposits Group (COAS)
|
| Previous Name(s): |
Kessock Bridge Formation [Obsolete Name and Code: Use KEBR]
(-4115)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Commercial boreholes drilled along the line of the Kessock Bridge, Inverness. Peacock, J D and Wilkinson, I P - in Merritt, et al., 1995. |
| Reference(s): |
| Peacock, J D. 1977. Subsurface deposits of Inverness and the Inner Cromarty Firth. 103-104 in Gill, G (editor), Moray Firth Area Geological Studues. [Inverness Field Club]. |
| Peacock, J D and Wilkinson, I P, 1995. Appendix, Kessock Biostratigraphy. 289-329 in Merritt, J W, Auton, C A and Firth, C R. 1995. Ice-proximal glaciomarine sedimentation and sea-level change in the Inverness area, Scotland: A review of the deglacial history of a major ice stream of the British Late Devensian Ice Sheet. In: Quaternary Science Reviews, Vol.14(3). |
| 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
|
