The BGS Lexicon of Named Rock Units — Result Details

Dundarg Conglomeratic Sandstone Formation [Obsolete Name And Code: See DDG]

Computer Code: DCST Preferred Map Code: DCST
Status Code: Index Level
Age range: Early Devonian Epoch (DL) — Early Devonian Epoch (DL)
Lithological Description: Conglomerate and pebbly sandstone with pedogenetic carbonate.
Definition of Lower Boundary: Basal beds of the Old Red Sandstone on the southern coast of the Moray Firth east of Banff.
Definition of Upper Boundary: At the change to finer grained siltstone with thin sandstones and mudstones of the Counter Head Siltstone Formation.
Thickness: 30-400m
Geographical Limits: Flecky's Meadow to Powies Point on the southern coast of the Moray Firth east of Gardenstown.
Parent Unit: Crovie Sandstone Group (CRO)
Previous Name(s): Crovie Sandstone (-2148)
Dundary Castle Sandstone Formation (-2149)
Dundarg Castle Conglomerate (-3352)
Fleckies Meadow Conglomerate (-3353)
Crovie Conglomerate (-1492)
Beds 1 And 2 In Crovie Group (-856)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Shore section between Flecky's Meadow and Counter Head, 1900m north east of New Aberdour Church. 
Reference Section  Shore section alongside Crovie Village, sections on each side of the pier. 
Reference(s):
Turner, P and Archer, R. 1975. Magnetisation history of Lower Old Red Sandstones from the Gamrie Outlier, Scotland, Earth and Planetary Science Letters, Vol.27, Castle Hill Sandstone, p.242. 
Trewin, N H, 1987. Localities 1 and 2, fig.1, p.115. Old Red Sandstone and Dalradian of Gamrie Bay, localities 1-5, fig.1, p.134-135. The Lower Old Red Sandstone of New Aberdour in Excursion guide to the geology of the Aberdeen area. Trewin, N H, Kneller, B C and Gillen, C (editors). (Edinburgh: Scottish Academic Press). 
Read, H H, 1996. Beds 1 and 2 of the Crovie Group on p.168. The Middle Old Red Sandstone. The geology of the country round Banff, Huntly and Turriff. Memoir of the Geological Survey of Scotland. (Edinburgh: HMSO). 
Archer, R, 1978. Crovie Siltstone Formation on p.17, West Harbour Formation on p.35, New Harbour Siltstone Formation on p.81 and Counter Head equivalent section on p.85, The Old Red Sandstone outliers of Gamrie and Rhynie, Aberdeenshire, PhD thesis (University of Newcastle upon Tyne). 
Mykura, W. 1991. Old Red Sandstone. 297-346 in Geology of Scotland (3rd edition, revised). Craig, G Y (editor). Geological Society of London. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S096