The BGS Lexicon of Named Rock Units — Result Details

Acre Limestone [Obsolete Name And Code: Use TYL]

Computer Code: ACRL Preferred Map Code: notEntered
Status Code: Index Level
Age range: Brigantian Substage (CX) — Brigantian Substage (CX)
Lithological Description: Grey crinoidal limestone.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: c.6m
Geographical Limits: Northern Northumberland, with correlatives across Northern England and Southern Scotland.
Parent Unit: Alston Formation (AG)
Previous Name(s): none recorded or not applicable
Alternative Name(s): Three Yard Limestone
Stratotypes:
none recorded or not applicable
Reference(s):
Lexique Stratigraphique International. 1971. Volume 1, Europe, Fascicule 3a, England, Wales and Scotland, Part 3a VII, Lower Carboniferous (Dinantian). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E004 E006 E001 E002