The BGS Lexicon of Named Rock Units — Result Details

Myoch Formation

Computer Code: MYO Preferred Map Code: MYO
Status Code: Full
Age range: Caradoc Series (O4) — Ashgill Series (OA)
Lithological Description: Red and green silty mudstones with sandstone and siltstone lenses.
Definition of Lower Boundary: Conformably overlies the Penwhapple Formation.
Definition of Upper Boundary: Conformably overlain by the Mill Formation.
Thickness: 30 m thick.
Geographical Limits: Girvan area, south-west Scotland.
Parent Unit: Whitehouse Subgroup (WHE)
Previous Name(s): none recorded or not applicable
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Foreshore, south of Girvan, Sheet SO07. 
Type Section  Whitehouse foreshore, south of Girvan. 
Reference(s):
Harper, D A T, 1984. Brachiopods from the Upper Ardmillan succession (Ordovician) of the Girvan district, Scotland. Part 1. Monograph of the Palaeontographical Society, London. 1-78 (Publication No.565, part of Vol.136 for 1982). 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S008 S007