The BGS Lexicon of Named Rock Units — Result Details

Strathkelvin Clay And Silt Member

Computer Code: KELV Preferred Map Code: notEntered
Status Code: Full
Age range: Holocene Epoch (QH) — Holocene Epoch (QH)
Lithological Description: The typical lithological association of the Strathkelvin Clay and Silt Member of the Kelvin valley is of silty clay with many layers of silt and locally of sand. Interbedded peat is also found. Bands relatively rich in organic detritus also occur. In general the clays are dark brown. The deposits are either of floodplain or lacustrine origin.
Definition of Lower Boundary: Unconformity on older Quaternary strata including the Broomhouse Sand and Gravel Formation and Wilderness Till Formation.
Definition of Upper Boundary: Unconformity below younger Quaternary strata including the Law Sand and Gravel Member on which it can also rest conformably. The Clippens Peat Formation may underlie and overlie this member.
Thickness: Veneer to over 9m
Geographical Limits: Known currently in Strath Kelvin and possibly in the Bonny Water valley around Banknock.
Parent Unit: Clyde Valley Formation (CLVY)
Previous Name(s): Kelvin Formation (-991)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Kelvin valley and overspilling imperceptible watershed with the Bonny Water valley that forms part of the River Forth catchment. 
Reference(s):
Browne, M A E and McMillan, A A. 1989a. Quaternary geology of the Clyde valley. British Geological Survey Research Report, SA/89/1. 
Forsyth, I H, Hall, I H S and McMillan, A A. 1996. Geology of the Aidrie district. Memoir of the British Geological Survey, Sheet 31W (Scotland). 
Browne, M A E and McMillan, A A. 1989b. Geology for land use planning: drift deposits of the Clyde valley Volume 1: Planning Report. British Geological Survey Technical Report, WA/89/78. 
Hall, I H S, Browne, M A E and Forsyth, I H. 1998. Geology of the Glasgow district. Memoir of the British Geological Survey, Sheet 30E (Scotland). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S030 S031