The BGS Lexicon of Named Rock Units — Result Details

Ledard Burn Member

Computer Code: LDBU Preferred Map Code: LDBM
Status Code: Full
Age range: Ediacaran Period (AD) — Comley Series (EC)
Lithological Description: Metasandstone, pale to medium grey, and slaty metasiltstone, green-grey, rhythmically interbedded and interlaminated. Thin calcareous lenses and pelite beds.
Definition of Lower Boundary: Outgoing of coarse clean, thick-bedded arenites and the incoming of finer-grained sandstones and siltstones.
Definition of Upper Boundary: Incoming of coarser-grained arenites and wackes.
Thickness: c.1500m in the type section at Ledard Burn.
Geographical Limits: Currently only defined between Loch Drunkie, Achray Forest, and ground around and to the west of Ledard Burn on Sheet 38E.
Parent Unit: Ben Ledi Grit Formation (BLEG)
Previous Name(s): Ben Ledi Grits (-652)
Alternative Name(s): none recorded or not applicable
Type Section  Across-strike river section; Ledard Burn, Kinlochard, near Aberfoyle, Perthshire. 
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used: