The BGS Lexicon of Named Rock Units — Result Details

Cullen Quartzite Formation

Computer Code: CUQU Preferred Map Code: SYMB
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Pale quartzites, mostly pure; thickly bedded with trough cross-bedding and large channel fills, to flaggy and more planar bedded.
Definition of Lower Boundary: Base of thick-bedded quartzites (not seen in any of the exposures).
Definition of Upper Boundary: At top of flaggy quartzites where overlain by flaggy micaceous psammites and semipelites of the Findlater Flag Formation.
Thickness: c. 2,400m on coast, c. 1,250m seen inland
Geographical Limits: 1) Coast between Buckie and Cullen, inland to Hill of Maud (Sheets 95 and 96). 2) Ben Aigan, Craigellachie to Cairnty (Sheet 85E). 3) Core of Ardonald Anticline, from Jock's Hill to Hill of Shenwall (Sheet 85E).
Parent Unit: Grampian Group (GRAM)
Previous Name(s): Cullen Quartzite [Obsolete Name And Code: Use CUQU] (DACQ)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Coastal section from small inlier within Old Red Sandstone at Buckpool to eastern side of Logie Head. 
Reference(s):
Memoir of the Geological Survey, Sheet 85 in prep. 
Stephenson, D, et al. 1993. Stratigraphy and correlation of the Dalradian rocks of the East Grampian Project area. British Geological Survey Technical Report WA/93/91. 
Read, H H, 1923. Geology of the country around Banff, Huntly and Turriff, Lower Banffshire and north-west Aberdeenshire. Memoir of the Geological Survey, Scotland Sheets 86 and 96 (Scotland). 
Peacock, J D, Berridge, N G, Harris, A L, May, F. 1968. The geology of the Elgin District. Memoir of the Geological Survey of Scotland. Sheets 86 and 96 (Scotland). (Edinburgh: HMSO). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S085 S095 S096 S086 S096