The BGS Lexicon of Named Rock Units — Result Details

Keltie Water Grit Formation

Computer Code: KWG Preferred Map Code: KWGF
Status Code: Full
Age range: Ediacaran Period (AD) — Comley Series (EC)
Lithological Description: Arenite, cream to buff, pale grey when fresh, coarse-grained locally gritty; interbedded with siltstone, black graphitic slate, pale grey-green to buff shales, locally calcareous, and thin pale to dark grey limestones.
Definition of Lower Boundary: Outgoing of coarse, chloritic and feldspathic gritty arenites and wackes and incoming of quartzose arenite (at top of Ben Ledi Grit Formation).
Definition of Upper Boundary: Top not seen
Thickness: c.1000m
Geographical Limits: Between the northern shore of Loch Venachar, Perthshire, Scotland, and the area around the Keltie Water, north-east of Callander, Perthshire, thence northeast to Comrie.
Parent Unit: Southern Highland Group (SOHI)
Previous Name(s): Leny Grit (In Part) (-3506)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Across-strike river section, Keltie Water, near Callander, Perthshire. 
Reference(s):
Tanner, P W G, 1995. New evidence that the Lower Cambrian Leny Limestone at Callander, Perthshire, belongs to the Dalradian Supergroup, and a reassessment of the 'exotic' status of the Highland Border Complex. Geological Magazine, Vol.132, 473-483. 
Stone, M, 1957. The Aberfoyle Anticline, Perthshire, Geological Magazine, Vol.94, 265-276). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S038 S039