The BGS Lexicon of Named Rock Units — Result Details

Whyntie Brae Limestone Member

Computer Code: WHYL Preferred Map Code: WhyL
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Calc-silicate rock, calcareous semipelite or thin impure metalimestone, laminated and striped, passing upward into mainly calcareous semipelite with minor thin metalimestone and lenses of reworked carbonate material.
Definition of Lower Boundary: Top of highest massive metalimestone bed at the top of the Boyne Castle Limestone Member.
Definition of Upper Boundary: Local unconformity at incoming of first major psammite bed (locally gritty) at base of Whitehills Grit Formation.
Thickness: c.500m on coastal section; progressively overstepped southwards by Whitehills Grit Formation.
Geographical Limits: From Moray Firth coast (Old Hythe to Boyne Bay) [NJ 6165 6608 - NJ 6300 6580] to Auchmillie [NJ 5900 6370].
Parent Unit: Boyne Limestone Formation (BOYL)
Previous Name(s): Basal Part Of Whitehills Group (-4976)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Coastal section from mouth of Burn of Boyne (Boyne Bay) to Whyntie Head. 
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. 
Stephenson, D and Gould, D , 1995. British Regional Geology: the Grampian Highlands (4th edition). (London: HMSO for the British Geological Survey), 67-68. 
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). 
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