The BGS Lexicon of Named Rock Units — Result Details
Greengate Well Limestone
Computer Code: | GGL | Preferred Map Code: | notEntered |
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Status Code: | Index Level | ||
Age range: | Brigantian Substage (CX) — Brigantian Substage (CX) | ||
Lithological Description: | Pale grey compact even-bedded limestone and subordinate shaly calcareous mudstone. | ||
Definition of Lower Boundary: | none recorded or not applicable | ||
Definition of Upper Boundary: | none recorded or not applicable | ||
Thickness: | c. 10 m maximum, thinning eastwards to about 5 m; locally split by c. 1.5 m of calcareous shaly mudstone. | ||
Geographical Limits: | none recorded or not applicable | ||
Parent Unit: | Alston Formation (AG) | ||
Previous Name(s): | none recorded or not applicable | ||
Alternative Name(s): | School Limestone Penton Limestone |
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Stratotypes: | |||
none recorded or not applicable | |||
Reference(s): | |||
Dean, M T, Browne, M A E, Waters, C N and Powell, J H. 2011. A lithostratigraphical framework for the Carboniferous successions of northern Great Britain (onshore). British Geological Survey Research Report, RR/10/007. 165pp. | |||
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: | |||
E018 E012 E013 |