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
Stratotypes:
Type Section  On the coast at Findlater Castle. 
Reference(s):
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 and Gould, D , 1995. British Regional Geology: the Grampian Highlands (4th edition). (London: HMSO for the British Geological Survey), 67-68. 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S096