The BGS Lexicon of Named Rock Units — Result Details

Smithy Burn Siltstone Formation

Computer Code: SMBS Preferred Map Code: SMBS
Status Code: Full
Age range: Llandovery Epoch (SL) — Sheinwoodian Age (SS)
Lithological Description: Dark grey, homogeneous siltstones, silty mudstones and shales, very weakly bedded.
Definition of Lower Boundary: Faulted
Definition of Upper Boundary: The base of the overlying Ree Burn Formation.
Thickness: >122m
Geographical Limits: Lower Palaeozoic Inlier of the Hagshaw Hills, Scotland. (50k sheets 23E, 23W and 15W).
Parent Unit: Hagshaw Group (HGW)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  Windrow Burn, 1.9km northwest of Hazelside Farm. 
Type Section  Smithy Burn section. 250m upstream from junction with the Podowrin Burn. 
Reference(s):
Rolfe, W D I, 1961. The Geology of the Hagshaw Hills Silurian Inlier, Lanarkshire. Transactions of the Edinburgh Geological Society, Vol.18, Part 3, 240-269. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S023 S023 S015