The BGS Lexicon of Named Rock Units — Result Details

Lady Burn Formation

Computer Code: LBM Preferred Map Code: LBM
Status Code: Full
Age range: Rawtheyan Stage (OW) — Rawtheyan Stage (OW)
Lithological Description: Pale grey, poorly bedded nodular siltstones and mudstones with a locally rich shelly fauna.
Definition of Lower Boundary: Conformably overlies the Quarrel Hill Formation (QHF).
Definition of Upper Boundary: Conformably overlain by the South Threave Formation (STHV).
Thickness: 140m
Geographical Limits: Craighead Inlier, Girvan.
Parent Unit: Drummuck Subgroup (DKG)
Previous Name(s): Lady Burn Mudstone (-355)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Craighead Inlier, SO14W. (Drummuck Burn). 
Type Section  Lady Burn, Craighead Inlier, Girvan. 
Reference(s):
Lapworth, C, 1882. The Girvan Succession. Quarterly Journal of the Geological Society of London, Vol. 38, 537-666. 
Harper, D A T, 1982. The stratigraphy of the Drummock Group (Ashgill), Girvan. Geological Journal, Vol.17, p.251-277.l. 17 251-277 
Lamont, A. 1935. The Drummuck Group, Girvan; A stratigraphical revision, with descriptions of new fossils from the lower part of the group. Transactions of the Geological Society of Glasgow, Vol.19, 288-334. 
Freshney, E C. 1959. An extension of the Silurian succession in the Craighead Inlier, Girvan. Transactions of the Geological Society of Glasghow, Vol. 24, 27-31. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S014