The BGS Lexicon of Named Rock Units — Result Details

Sunnyside Psammite Member

Computer Code: SUNS Preferred Map Code: SunS
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Quartzite and feldspathic quartzite, medium- to thickly planar bedded, well-sorted, with tabular cross-bedding.
Definition of Lower Boundary: Faulted against Dicky Hare Member on coast.
Definition of Upper Boundary: Sharp change to micaceous, schistose semipelite of West Sands Mica Schist Member of Findlater Flag Formation.
Thickness: c.350m on coast section; appears to thicken slightly inland.
Geographical Limits: From coast at Sunnyside Bay [NJ 5340 6765 - 5370 6740] as far as a line from the southeast side of Crannoch Hill [NJ 521 664] to [NJ 528 600], just north of the A98.
Parent Unit: Cullen Quartzite Formation (CUQU)
Previous Name(s): Sunnyside Feldspathic Psammites (-2461)
Sunnyside Sandstone Member (-551)
Logie Head Member (-3700)
Alternative Name(s): none recorded or not applicable
Type Section  On the coast from the west side of Sunnyside Bay to West Sands. 
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). 
Stephenson, D and Gould, D , 1995. British Regional Geology: the Grampian Highlands (4th edition). (London: HMSO for the British Geological Survey), 67-68. 
Harris, A L, Haselock, P J, Kennedy, M J and Mendum, J R, 1994. The Dalradian Supergroup in Scotland, Shetland and Ireland. 33-53 in Gibbons, W E and Harris, A L (editors). A revised correlation of Precambrian rocks in the British Isles. Special Report of the Geological Society, London, No.22. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: