The BGS Lexicon of Named Rock Units — Result Details

Kincurdy Silts Formation

Computer Code: KSI Preferred Map Code: notEntered
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Thinly interlaminated silt, sandy silt and plastic clay with dropstones and lenses of diamicton; becoming coarser-grained upwards.
Definition of Lower Boundary: Sharp, gently undulating erosion surface on Red Craig Gravels Formation below.
Definition of Upper Boundary: Sharp, planar, associated with glacitectonic shearing at base of overlying (unnamed) till.
Thickness: 6.5m
Geographical Limits: Confined to Rosemarkie Glen, Rosemarkie, Black Isle.
Parent Unit: Inverness Glacigenic Subgroup (INVG)
Previous Name(s): Kincurdie Silts Formation (-4739)
Alternative Name(s): none recorded or not applicable
Type Area  Rosemarkie Glen, a deep glacial meltwater channel extending northwestwards from Rosemarkie. 
Type Section  Cliff immediately to the north of Rosemarkie Village. Section occurs halfway up the cliff. 
Fletcher, T P et al. 1996. Geology of the Fortrose and eastern Inverness district. Memoir of the British Geological Survey, Sheet 84W (Scotland). 
1:50K maps on which the lithostratigraphical unit is found, and map code used: