The BGS Lexicon of Named Rock Units — Result Details

Marchburn Formation

Computer Code: MCHB Preferred Map Code: MCHB
Status Code: Full
Age range: Caradoc Series (O4) — Caradoc Series (O4)
Lithological Description: Wacke sandstones, siltstones and sporadic conglomerates (turbidite succession).
Definition of Lower Boundary: Faulted (against Afton Formation by Carcow Fault).
Definition of Upper Boundary: Faulted (by Southern Upland Fault).
Thickness: c.1300m
Geographical Limits: Southern Uplands of Scotland.
Parent Unit: Tappins Group (TAP)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Type Section  March Burn (boundary between Ayrshire and Dumfriesshire) 
Floyd, J D, 1982. Stratigraphy of a flysch succession: The Ordovician of West Nithsdale, South West Scotland. Transactions of the Royal Society of Edinburgh, Earth Sciences, Vol.73 (1), p.1-9. 
Floyd, J D, 1996. Lithostratigraphy of the Ordovician rocks in the Southern Uplands: Crawford Group, Moffat Shale Group, Leadhills Supergroup. Transactions of the Royal Society of Edinburgh: Earth Sciences, Vol.86, 153-165. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S008 S015 S024 S015 S023 S024 S032