The BGS Lexicon of Named Rock Units — Result Details

Netherfield Limestone Bed [Obsolete Name And Code: Use DYLS]

Computer Code: NFLM Preferred Map Code: notEntered
Status Code: Index Level
Age range: Visean Stage (CV) — Visean Stage (CV)
Lithological Description: A pale to dark grey, argillaceous, shelly, bioclastic limestone, interpreted to be of marine origin.
Definition of Lower Boundary: Generally by a change from marine mudstone of the Dykebar and Balmore Marine bands, belonging to Lawmuir Formation, overlying thin coal or seatrocks.
Definition of Upper Boundary: Generally by a change to marine mudstone of the Dykebar and Balmore Marine bands belonging to Lawmuir Formation, overlain by non-marine sandy strata.
Thickness: Up to 1.4m thick in the Paisley and Glasgow districts, elsewhere otherwise represented by the Dykebar and Balmore Marine Bands
Geographical Limits: The Paisley and Glasgow area of the Midland Valley of Scotland.
Parent Unit: Kirkwood Formation (KRW)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  The Hurlet Borehole NS56SW/333, where it is 0.72m thick in two leaves, at a base depth of 84.26m. 
Reference(s):
Forsyth, Hall and McMillan. Hall, Browne and Forsyth. 1998. Geology of the Glasgow district. Memoir for 1:50000 Geological Sheet 30E (Scotland) pp27-30 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S023