The BGS Lexicon of Named Rock Units — Result Details

Tobar Fuar Limestone Member

Computer Code: TOFU Preferred Map Code: SYMB
Status Code: Full
Age range: Neoproterozoic Era (AZ) — Neoproterozoic Era (AZ)
Lithological Description: Crystalline limestone, grey, lenticular, bedded, originally fragmental, commonly with pyrite, locally with tight folding. Calcite segregations in parts. Generally blocky (massive to flaggy).
Definition of Lower Boundary: Lower limit of limestone overlying graphitic semipelitic to pelitic schist of the Badenyon Schist and Limestone Formation.
Definition of Upper Boundary: Upper limit of limestone overlain by semipelite and highly micaceous psammite, slaty, blue-grey, of the Badenyon Schist and Limestone Formation.
Thickness: To c.20m
Geographical Limits: South of the Lecht in the valleys of the Loinherry/Camore Burn, west of the Lecht Road (A939) and east of the road in the valley of the Milltown Burn. Upper Donside, Aberdeenshire.
Parent Unit: Badenyon Schist And Limestone Formation (BSAL)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Section  Stream section in lower part of Camore Burn. 
Reference Section  Quarries and sink holes west of A939 by Clachan Lochan. 
Memoir of the British Geological Survey, Sheet 75, in preparation. 
1:50K maps on which the lithostratigraphical unit is found, and map code used: