The BGS Lexicon of Named Rock Units — Result Details
Great Easby Clay Formation
| Computer Code: | GECL | Preferred Map Code: | GE |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Devensian Stage (QD) — Devensian Stage (QD) | ||
| Lithological Description: | Dark reddish brown clay, silt and very fine-grained sand, generally thinly laminated and locally varved. Sparse dropstones. | ||
| Definition of Lower Boundary: | Unconformable boundary with red diamicton of the underlying Gillcambon Till Formation, or on bedrock. | ||
| Definition of Upper Boundary: | Generally a sharp, planar, or gradational glacitectonic boundary with red diamicton correlated with the Plumpe Bridge Till Member of the Gretna Till Formation. | ||
| Thickness: | 10m or more. | ||
| Geographical Limits: | The Solway Lowlands around Carlisle. | ||
| Parent Unit: | Irish Sea Coast Glacigenic Subgroup (ISCG) | ||
| Previous Name(s): | Glaciolacustrine deposits
(GLLD)
Glaciolacustrine deposits (GLLD) |
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| Alternative Name(s): | Great Easby Member |
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| Stratotypes: | |||
| Type Section | River cliff sections in the southern bank of the River Irthing. 3km northeast of Brampton, Cumbria. Huddart (1970), Huddart and Glasser (2002). | ||
| Reference(s): | |||
| Huddart, D. 1970. Aspects of glacial sedimentation in the Cumberland lowland. Unpublished PhD thesis, University of Reading. | |||
| Huddart, D and Glasser, N F (editors). 2002. Quaternary of Northern England. Geological Conservation Review Series, No.25. [Peterborough: Joint Nature Conservation Committee.] 745pp. | |||
| Bowen, D Q. 1999. A revised correlation of Quaternary deposits in the British Isles. Geological Society Special Report, No. 23. | |||
| Trotter, F M and Hollingworth, S E. 1932. The geology of the Brampton District. Memoir of the Geological Survey, Sheet 18. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| none recorded or not applicable | |||