The BGS Lexicon of Named Rock Units — Result Details

Laird's Burn Member

Computer Code: LABN Preferred Map Code: notEntered
Status Code: Full
Age range: Early Devonian Epoch (DL) — Early Devonian Epoch (DL)
Lithological Description: Yellow-brown to pale buff volcaniclastic carbonate-cemented sandstones with some conglomerates.
Definition of Lower Boundary: Locally, the top of the Duneaton Volcanic Formation.
Definition of Upper Boundary: The base of the purplish-brown to greenish cross-bedded volcaniclastic sandstones and siltstones, typical of the rest of the Auchtitench Formation.
Thickness: To 350m
Geographical Limits: New Cumnock 1:50 000 Geological Sheet 15 W.
Parent Unit: Auchtitench Sandstone Formation (AUC)
Previous Name(s): Lower Old Red Sandstone "Tuffs" (-1636)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Along March Burn, tributary to the north of Glenmuir Water, south of Cairn table. 
Reference(s):
Smith, R A. 1999. Geology of the New Cumnock district - a brief explanation of the geological map. Sheet Explanation of the British Geological Survey. 1:50 00 sheet 15W, New Cumnock (Scotland). 
Smith, R A. 1994. Geological notes and local details for 1:10 000 sheet, NS72SW. British Geological Survey Technical Report, WA/94/9. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S015