"Hoghill Gravel Bed"@en . . "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."@en . "0.0118"^^ . "Very dense, clast-supported diamicton comprising angular clasts of greywacke siltstone in a matrix of pale yellowish brown, silty sand."@en . . "Sharp erosional or gradational, glacitectonic boundary with the overlying undivided Langholm Till Formation."@en . . . "Hoghill Gravel Bed"@en . "HGGR"@en . . "0.116"^^ . "Gravel with subsidiary sand and trace silt. Stratified superficial deposits. Occurs onshore. Formed during the Devensian Stage (Quaternary Period) (.116-.0118 Ma BP)."@en . . . "Hoghill Gravel Formation [Obsolete: use HGGR]"@en . "stable"@en . . "5m"@en . .