The BGS Lexicon of Named Rock Units — Result Details

Loganhouse Gravel Member

Computer Code: LOGG Preferred Map Code: LOG
Status Code: Full
Age range: Devensian Stage (QD) — Devensian Stage (QD)
Lithological Description: Dense, reddish brown, silty gravel with clasts of red sandstone, greywacke sandstone and siltstone.
Definition of Lower Boundary: Erosional contact with the underlying Chapelknowe Till Member of the Gretna Till Formation.
Definition of Upper Boundary: Either a conformable contact with the overlying Plumpe Farm Sand Member of the Plumpe Sand and Gravel Formation or a sharp, glacitectonic contact with the overlying Plumpe Bridge Till Member of the Gretna Till Formation.
Thickness: 5m
Geographical Limits: Solway Lowlands.
Parent Unit: Plumpe Sand And Gravel Formation (PLSG)
Previous Name(s): Middle Sands And Gravels (-122)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  River cliff of the Logan Burn, 1.5km south of Chapelknowe, Dumfries-shire. Geologists' field locality card ME 300 
Reference(s):
Trotter, F M, 1922. Report from the Cumberland District. In: Summary of the Progress of the Geological Survey of Great Britain for 1921, 46-48. 
Trotter, F M, 1923. Report from the Cumberland District. In: Summary of Progress of the Geological Survey of Great Britain for 1922, 61-63. 
Trotter, F M and Hollingworth, S E, 1932. The glacial sequence in the North of England. Geological Magazine, Vol.69, 374-380. 
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. 
Trotter, F M. 1929. The glaciation of the Eastern Edenside, the Alston Block, and the Carlisle Plain. Quarterly Journal of the Geological Society of London, Vol.85, 549-612. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S006