Computer Code: |
DUTI |
Preferred Map Code: |
DB |
Status Code: |
Full |
Age range: |
Devensian Stage (QD)
— Devensian Stage (QD) |
Lithological Description: |
Sandy, silty and commonly gritty, diamicton, typically pale to dark brown; clasts include Devonian mudstones, sandstones and flagstones, with some Caledonian igneous and Moine metamorphic rocks. |
Definition of Lower Boundary: |
Unconformable on bedrock. |
Definition of Upper Boundary: |
Base of the Reisgill Burn Till Formation, typically the base of the Forse Till member. |
Thickness: |
To 12m |
Geographical Limits: |
Caithness and Sutherland northeast of a line between Reay and Berridale (1:50 000 sheets 115E and W, 116E and W, 110). |
Parent Unit: |
Northwest Highlands Glacigenic Subgroup (NWHG)
|
Previous Name(s): |
Dunbeath Till [Obsolete Name and Code: Use DUTI]
(-4014)
|
Alternative Name(s): |
Skurley Till Member and Balantrath Members Of The Berridale Formation
|
Stratotypes: |
Type Section |
Dunbeath Water, about 200m upstream of the A9T road bridge. Omand, 1973, p.28. |
Reference Section |
River cliff at Balantrath on the Dunbeath Water. Hall and Whittington, 1989, p.314. |
Reference(s): |
Omand, D. 1973. The glaciation of Caithness. Unpublished MSc Thesis, University of Strathclyde. |
Hall, A M and Whittington, G. 1989. Late Devensian glaciation of southern Caithness. Scottish Journal of Geology, Vol.25, 307-324. |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
S116
S110
S115
|