Computer Code: |
NFLM |
Preferred Map Code: |
notEntered |
Status Code: |
Index Level |
Age range: |
Visean Age (CV)
— Visean Age (CV) |
Lithological Description: |
[Obsolete: use DYLS] 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: |
none recorded or not applicable
|
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
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