The BGS Lexicon of Named Rock Units — Result Details

Hoghill Gravel Bed

Computer Code: HGGR Preferred Map Code: HOG
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Very dense, clast-supported diamicton comprising angular clasts of greywacke siltstone in a matrix of pale yellowish brown, silty sand.
Definition of Lower Boundary: Generally an unconformable boundary on bedrock. Locally resting on reddish brown, stony clayey diamiction that possibly correlates with the Chapelknowe Till Member of the Gretna Till Formation.
Definition of Upper Boundary: Sharp erosional or gradational, glacitectonic boundary with the overlying undivided Langholm Till Formation.
Thickness: 5m
Geographical Limits: Southern Uplands of Scotland.
Parent Unit: Langholm Till Formation (LHTI)
Previous Name(s): Hoghill Gravel Formation (-2235)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  River cliff on the southern side of the Hoghill Burn, 1km upstream of Hoghill Farm. Merritt et al. In prep: Field locality ME 312. 
Reference(s):
McMillan, A A, Merritt, J W, Auton, C A and Golledge, N R [In preparation]. The Quaternary geology of the Solway area. BGS Research Report. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable