| Computer Code: |
BTI |
Preferred Map Code: |
BT |
| Status Code: |
Full |
| Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
| Lithological Description: |
Stony, sandy clay diamicton, stratified, yellowish brown, containing clasts mainly of sandstone. |
| Definition of Lower Boundary: |
Unconformable contact with glacitectonised sands and silts of the Ardersier Silts Formation. |
| Definition of Upper Boundary: |
Ground surface or unconformable contact with overlying Late Devensian Raised Beach Deposits. |
| Thickness: |
2m |
| Geographical Limits: |
Ardersier Peninsula, southern shore of the Inner Moray Firth. |
| Parent Unit: |
Finglack Till Formation (FINT)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Overgrown former claypit ("Jamieson's Pit") in the Main Flandrian Cliffline, 400m west of Baddock, near Ardersier, re-excavated in September 1991. |
| 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). |
| Merrit, 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 deglaciation of a major ice stream of the British Late Devensian ice sheet. Quaternary Science Reviews, Vol.14, 289-329. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
S084
|
