The BGS Lexicon of Named Rock Units — Result Details

Laggantuin Cornstone Member

Computer Code: LGT Preferred Map Code: LAN
Status Code: Pending Upgrade
Age range: Tournaisian Stage (CT) — Tournaisian Stage (CT)
Lithological Description: White sandstones and red-brown mudstones with pedogenic carbonate.
Definition of Lower Boundary: Transition from grey silty mudstones with dolomitic limestones.
Definition of Upper Boundary: Transition to white cross-bedded sandstones.
Thickness: About 30m
Geographical Limits: The vicinity of Laggantuin, northeastern coast of the Isle of Arran, Scotland.
Parent Unit: Clyde Sandstone Formation (CYD)
Previous Name(s): Laggantuin Cornstones Formation (-3523)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Arran Special Sheet. 
Reference(s):
Paterson, I B and Hall, I H S, 1986. Lithostratigraphy of the late Devonian and early Carboniferous rocks in the Midland Valley of Scotland. British Geological Survey Report, 18/3. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S338 S013