The BGS Lexicon of Named Rock Units — Result Details

Findlater Castle Quartzite Member

Computer Code: FICQ Preferred Map Code: FiCQ
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Quartzite, cross-bedded, granular, white; large-scale ripple marks prominent.
Definition of Lower Boundary: Sharp change from thinly-banded psammite and semipelite to thick-bedded quartzite.
Definition of Upper Boundary: Top of highest quartzite bed; overlain by flaggy thin-bedded psammite and semipelite.
Thickness: c.7m on coast section; possibly 10 to 20m inland.
Geographical Limits: From coast at Findlater Castle [NJ 5425 6730], as far inland as the A98 road [NJ 531 667]; quartzite units within the Findlater Flag Formation to the southwest of the A98 cannot with confidence be correlated with the Findlater Castle Quartzite Member.
Parent Unit: Findlater Flag Formation (FIFL)
Previous Name(s): Findlater Castle Quartzite (-250)
Alternative Name(s): none recorded or not applicable
Type Section  On the coast at Findlater Castle. 
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. 
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, et al. 1993. Stratigraphy and correlation of the Dalradian rocks of the East Grampian Project area. British Geological Survey Technical Report WA/93/91. 
Stephenson, D and Gould, D , 1995. British Regional Geology: the Grampian Highlands (4th edition). (London: HMSO for the British Geological Survey), 67-68. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: