The BGS Lexicon of Named Rock Units — Result Details

Upper Limestone Formation

Computer Code: ULGS Preferred Map Code: ULGS
Status Code: Full
Age range: Pendleian Substage (CE) — Arnsbergian Substage (CG)
Lithological Description: Cyclic: includes marine limestones. See NOTE relating to lithological description of Limestone Coal Formation (LSC).
Definition of Lower Boundary: Base of Index Limestone.
Definition of Upper Boundary: Top of Castlecary Limestone.
Thickness: 435.3m in type section
Geographical Limits: Central Scotland.
Parent Unit: Clackmannan Group (CKN)
Previous Name(s): Upper Limestone Group (Dungannon, Northern Ireland) [Obsolete Name And Code: Use ULGS] (ULGI)
Upper Limestone Group [Obsolete Name And Code: Use ULGS] (ULG)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Mossneuk Borehole (NS88NE/204) from 335 to 770.3m. 
Reference(s):
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. 
North American Commission on Stratigraphic Nomenclature, 1983. North American Stratigraphic Code. American Association of Petroleum Geologists, Bulletin 67, No. 5, p. 841-875. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S012 S008 S023 E018 S013 S031 S025 S024 S338 S014 S015 S023 S024 S015 S031 S032 S032 E004 E006 S040 S030 S039 S039 S040 S041 E019 E025 E001 E002