The BGS Lexicon of Named Rock Units — Result Details

Lower Limestone Formation

Computer Code: LLGS Preferred Map Code: LLGS
Status Code: Full
Age range: Brigantian Substage (CX) — Pendleian Substage (CE)
Lithological Description: Cyclic: includes marine limestones. NOTE: See lithological description note in entry for Limestone Coal Formation (LSC).
Definition of Lower Boundary: Base of Hurlet Limestone.
Definition of Upper Boundary: Top of Top Hosie Limestone.
Thickness: 211m in type section
Geographical Limits: Central Scotland.
Parent Unit: Clackmannan Group (CKN)
Previous Name(s): Limestone, Lower (Dolomite) [Obsolete Name And Code: Use LLGS] (LLGD)
Lower Limestone Group [Obsolete Name and Code: Use LLG, LLGS] (*299)
Lugton Limestone Formation [Obsolete Name And Code: Use LLGS] (LUL)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Wester Gartshore Borehole (NS67SE/99) from 82.0 to 293.0 m depth. 
Reference(s):
Dean, M T, Browne, M A E, Waters, C N and Powell, J H. 2011. A lithostratigraphical framework for the Carboniferous successions of northern Great Britain (onshore). British Geological Survey Research Report, RR/10/007. 165pp. 
Waters, C N, Gillespie, M R, Smith, K, Auton, C A, Floyd, J D, Leslie, A G, Millward, D, Mitchell, W I, McMillan, A A, Stone, P, Barron, A J M, Dean, M T, Hopson, P M, Krabbendam, M, Browne, M A E, Stephenson, D, Akhurst, M C, and Barnes, R P. 2007. Stratigraphical Chart of the United Kingdom: Northern Britain. (British Geological Survey.) 
MacGregor, A G, 1960. Division of the Carboniferous on Geological Survey Scottish Maps. Bulletin of the Geological Survey of Great Britain, No.16, 127-130. 
Ramsbottom, W H C, Calver, M A, Eagar, R M C, Hodson, F, Holliday, D W, Stubblefield, C J and Wilson, R B. 1978. A correlation of the Silesian rocks in the British Isles. Geological Society of London, Special Report No.10. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S008 S012 S015 S023 S013 S031 S031 S025 S024 S015 S338 S014 S023 S024 S032 S032 S034 S049 E004 E006 S040 S030 S030 S039 S040 S041 E001 E002