The BGS Lexicon of Named Rock Units — Result Details

Dura Den Member

Computer Code: DDF Preferred Map Code: notEntered
Status Code: Full
Age range: Late Devonian Epoch (DU) — Late Devonian Epoch (DU)
Lithological Description: Red, cream and green siltstones, alternating with fine-grained cream sandstones, coarser pebbly sandstones and thin partings of red or green mudstone.
Definition of Lower Boundary: The top of the coarser-grained sandstone within the Glenvale Sandstone Formation.
Definition of Upper Boundary: Drawn at the conformable upward passage from siltstone and sandstones of the Dura Den Member to the white or cream sandstones of the Knox Pulpit Sandstone Formation.
Thickness: Approximately 40 m thick.
Geographical Limits: The Stratheden area of the Midland Valley of Scotland, on sheets 40E (uncertain), 48E and 49. Additionally a thin lens-shaped unit is restricted to the Cupar area.
Parent Unit: Glenvale Sandstone Formation (GEF)
Previous Name(s): Dura Den Formation (-206)
Dura Den Fish Bed [Obsolete Name And Code: Use DDF] (DDFB)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Foot of cliff opposite Yoolfield Mill, near Cupar, Fife, Scotland. 
Reference Section  River bed upstream from Yoolfield Mill, near Cupar, Fife, Scotland. 
Reference(s):
Chisholm, J I and Dean, J M, 1974. The Upper Old Red Sandstone of Fife and Kinross: A fluviatile sequence with evidence of marine incursion. Scottish Journal of Geology, Vol. 10, 1-30. 
Waterston, C D, 1965. Old Red Sandstone. In: Craig, G Y (editor). The Geology of Scotland, 270-340. 
Browne, M A E, Smith, R A and Aitken, A M. 2001. A lithostratigraphical framework for the Devonian (Old Red Sandstone) rocks of Scotland south of a line from Fort William to Aberdeen. Version 3. British Geological Survey Research Report RR/01/04. 
Cameron, I B and Stephenson, D, 1985. British Regional Geology: The Midland Valley of Scotland (3rd Edition). (London: HMSO for British Geological Survey). 
Paterson, I B and Hall, I H S, 1986. Lithostratigraphy of the late Devonian and early Carboniferous rocks in the Midland Valley of Scotland. British Geological Survey Report, 18/3. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E048 E040 S049