The BGS Lexicon of Named Rock Units — Result Details

Lacustrine deposits

Computer Code: LDE Preferred Map Code: notEntered
Status Code: Full
Age range: Quaternary Period (Q) — Quaternary Period (Q)
Lithological Description: Lacustrine deposits were laid down as deltaic, lake bottom and shore sediments in lakes. They include clastic deposits, composed of coarse-grained bedload and suspended fine-grained material brought by streams flowing into the lake. Under arid and semiarid conditions evaporites form an important component of lake sediments. Includes fine-grained sediments (i.e. clay and silt), commonly laminated, and can contain thin layers of organic material or sand.
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: Superficial deposits (SUPD)
Previous Name(s): Lacustrine deposits (undifferentiated) [Obsolete Name and Code: Use LDE] (-4755)
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:
S023 E014 S013 S031 S031 E208 E225 E070 E077 S032 S032 E059 E141 S056 S066 S030 S039 S096 S064 S074 S076 S077 S093 S096 S115 S052 S128 S130 S131 E214