The BGS Lexicon of Named Rock Units — Result Details
Glaciolacustrine deposits
| Computer Code: | GLLD | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Pleistocene Epoch (QP) — Pleistocene Epoch (QP) | ||
| Lithological Description: | Glaciolacustrine deposits were laid down in glacial lakes. Composed of coarse-grained bedload and suspended fine-grained material transported by meltwater flowing into lakes bordering the glacier. Deposits include sands, silts and clays of deltaic origin, shoreface sand and gravel and lake bottom varved, fine-grained (fine sand, silt and clay) sediments. Dropstones from floating ice are a common feature. Synonyms: glacilacustrine deposits, glacial lake deposits. Silt and clay, laminated, commonly rich in organic matter, locally with interbedded peat. | ||
| Definition of Lower Boundary: | none recorded or not applicable | ||
| Definition of Upper Boundary: | none recorded or not applicable | ||
| Thickness: | none recorded or not applicable | ||
| Geographical Limits: | none recorded or not applicable | ||
| Parent Unit: | Proglacial deposits (PGDEP) | ||
| Previous Name(s): | Glaciolacustrine deposits, undifferentiated [Obsolete Name and Code: Use GLLD]
(-2546)
Glaciolacustrine sand and gravel [Obsolete Name and Code: Use GLLD] (-3153) Glaciolacustrine proglacial deposits [Obsolete Name and Code: Use GLLD] (GLPG) Glacial lake deposits [Obsolete Name and Code: Use GLLD] (-12) |
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| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| none recorded or not applicable | |||
| Reference(s): | |||
| McMillan, A A and Powell, J H. 1999. The classification of artificial (man made) ground and natural superficial deposits. British Geological Survey Research Report, RR/99/04. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E221 S015 S023 S031 S031 E130 E203 E078 E142 E024 E014 S032 S040 E141 S084 S030 S038 S076 E096 N28 E214 | |||