The BGS Lexicon of Named Rock Units — Result Details

Limestone Coal Formation

Computer Code: LSC Preferred Map Code: LSC
Status Code: Full
Age range: Pendleian Substage (CE) — Pendleian Substage (CE)
Lithological Description: Cyclic: includes coal seams.NOTE: Passage, Upper Limestone, Limestone Coal and Lower Limestone formations were defined for use on Scottish maps by MacGregor, 1960, based, except for the top of the Passage Formation, on the correlation of marine bands. The top of the Passage Formation is defined on the base of the overlying Lower Coal Measures, drawn at an arbitrary line that varies in horizon from basin to basin. The various positions are shown by Ramsbottom and others, 1978. It is proposed that these positions and the marine bands (considered as lithological markers) defining the other formational boundaries be followed here. It is proposed that the divisions be retained but with rank revised from Group to Formation, as these are the units that are mapped in practice and displayed on published 1: 50k maps.
Definition of Lower Boundary: Top of Top Hosie Limestone.
Definition of Upper Boundary: Base of Index Limestone.
Thickness: 530.2 metres in type section.
Geographical Limits: Central Scotland.
Parent Unit: Clackmannan Group (CKN)
Previous Name(s): Dalry Sandstone Formation [Obsolete Name And Code: Part Of LSC] (DLST)
Limestone Coal Group (-2759)
Alternative Name(s): none recorded or not applicable
Partial Type Section  Cardowan No.13 Bore (NS66NE/104), 0 - 106.7m (base of Kilsyth Coking Coal to base of formation). 
Partial Type Section  Cardowan No.2 Bore (NS66NE/66), 116 - 539.5m (top of formation to base of Kilsyth Coking Coal). 
North American Commission on Stratigraphic Nomenclature, 1983. North American Stratigraphic Code. American Association of Petroleum Geologists, Bulletin 67, No. 5, p. 841-875. 
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. 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S012 S008 S015 S023 S013 S031 S031 S025 S024 S015 S338 S014 S023 S024 S033 S032 S032 S049 S040 S030 S030 S039 S039 S040 S041