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): Logie Head Member (-3700)
Sunnyside Feldspathic Psammites (-2461)
Sunnyside Sandstone Member (-551)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  On the coast from the west side of Sunnyside Bay to West Sands. 
Reference(s):
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:
S096