The BGS Lexicon of Named Rock Units — Result Details
Greengate Well Limestone
| Computer Code: | GGL | Preferred Map Code: | notEntered |
|---|---|---|---|
| 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 |
||
| 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). | |||
| 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. 165 pp. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E018 E012 E013 | |||