| Computer Code: |
CFTI |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Wolstonian Stage (QO)
— Wolstonian Stage (QO) |
| Lithological Description: |
Sandy, silty diamicton (till), very stiff, grey (2.5Y N5) to very dark grey (7.5YR N3), massive to crudely horizontally bedded with sparse pebbles. Clast lithologies comprise mainly rounded quartzite and flint, with lesser amounts of subangular grey granite, mafic igneous, red sandstone and soft grey siltstone. The matrix is a micaceous sandy silt and clay; clay mineralogy is largely kaolinite, illite-smectite and minor glauconite. |
| Definition of Lower Boundary: |
The unit rests on, and locally grades down into, and incorporates rafts of glauconitic Moreseat Sandstone Formation (Lower Cretaceous). |
| Definition of Upper Boundary: |
Sharp, unconformable contact with compressed humified peat and organic sand of the Berry Peat Bed, where the upper part of the till is mottled (weathered). |
| Thickness: |
At least 2m |
| Geographical Limits: |
Moss of Cruden, Buchan. |
| Parent Unit: |
Banffshire Coast and Caithness (Albion) Glacigenic Subgroup (BCAG)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
Corse Of Balloch Member
|
| Stratotypes: |
| Type Section |
Camp Fauld, on the southern slope of the Moss of Cruden, about 900m northwest of Moreseat, Buchan. Whittington et al., 1993. |
| Reference(s): |
| Merritt, J W, Auton, C A, Connell, E R, Hall, A M and Peacock, J D. 2003. The Cainozoic geology and landscape evolution of north-east Scotland. Memoir of the British Geological Survey, Sheets 66E, 67, 76E, 77, 86E, 87W, 87E, 95, 96W, 96E and 97 (Scotland) |
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. |
| Whittington, G, Hall, A M and Jarvis, J. 1993. A pre-late Devensian pollen site from Camp Fauld, Buchan, northeast Scotland. New Phytologist, Vol.125, 867-874. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
