The BGS Lexicon of Named Rock Units — Result Details

Mid Hosie Limestone

Computer Code: MIHO Preferred Map Code: MIHO
Status Code: Full
Age range: Brigantian Substage (CX) — Brigantian Substage (CX)
Lithological Description: A pale to dark grey, argillaceous locally concretionary, crinoidal and shelly, bioclastic limestone, interpreted to be of marine origin.
Definition of Lower Boundary: Generally seen as a change from marine mudstone within the Lower Limestone Formation.
Definition of Upper Boundary: Generally seen as a change to marine mudstone within the Lower Limestone Formation.
Thickness: 0.35m to 1.15m thick, or locally less, in the Airdrie, Falkirk and Glasgow districts. This limestone fuses with the Main Hosie Limestone at Petershill in the Bathgate Hills.
Geographical Limits: Distributed throughout most of the outcrop of the Carboniferous of the Midland Valley of Scotland, but locally difficult to recognize in Ayrshire and Lanarkshire where the Hosie limestones join together as the McDonald Limestone in the shelf setting.
Parent Unit: Lower Limestone Formation (LLGS)
Previous Name(s): Lower Kinniny Limestone [Obsolete Name And Code: Use MIHO] (LRKI)
Barns Ness Limestone [Obsolete Name And Code: Use MIHO] (BNSS)
Upper Vexhim Limestone [Obsolete Name And Code: Use MIHO] (UVEX)
Alternative Name(s): Middle Hosie Limestone
Stratotypes:
Reference Section  Wester Gartshore Colliery Underground Borehole, BGS Reg. No. NS67SE/99 at Kirkintilloch, northwest of Airdrie, where it consists of two leaves, with a unit base measured at 103.94m depth and 0.67m thickness. 
Type Area  Houston, west of Paisley, around the Gryfe Water. Hinxman et al., 1920. 
Reference(s):
Lexique Stratigraphique International. 1971. Volume 1, Europe, Fascicule 3a, England, Wales and Scotland, Part 3a VII, Lower Carboniferous (Dinantian). 
Cameron, I B, Aitken, A M, Browne, M A E and Stephenson, D. 1998. Geology of Falkirk District. Memoir of the British Geological Survey Sheet 31E (Scotland). 
Hall, I H S, Browne, M A E and Forsyth, I H. 1998. Geology of the Glasgow district. Memoir of the British Geological Survey, Sheet 30E (Scotland). 
Forsyth, I H, Hall, I H S and McMillan, A A. 1996. Geology of the Aidrie district. Memoir of the British Geological Survey, Sheet 31W (Scotland). 
Hinxman, L W, Anderson, E M and Carruthers, R G. 1920. The economic geology of the Central Coalfield of Scotland, Area IV; Paisley, Barrhead, Renfrew. Memoir of the Geological Survey, Scotland. 
Browne, M A E, Dean, M T, Hall, I H S, McAdam, A D Monro, S K and Chisholm, J I. 1999. A lithostratigraphical framework for the Carboniferous rocks in the Midland Valley of Scotland. British Geological Survey Research Report, RR/99/07. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S031 S031 S023 S032 S040 S030 S030 S032