The BGS Lexicon of Named Rock Units — Result Details

Late-Glacial Alluvium

Computer Code: LGA Preferred Map Code: notEntered
Status Code: Index Level
Age range: Quaternary Period (Q) — Quaternary Period (Q)
Lithological Description: Flattish spreads of fine- to medium sand with silt and some gravel, with organic seams.Normally soft to firm consolidated, compressible silty clay, but can contain layers of silt, sand, peat and a basal gravel. A stronger, desiccated, surface zone may be present [generic description]; late glacial.
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: Not Entered (?)
Previous Name(s): Alluvium (ALV)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
none recorded or not applicable
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S040