The BGS Lexicon of Named Rock Units — Result Details
Shalloch Formation
| Computer Code: | SLH | Preferred Map Code: | SLH |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Pusgillian Stage (OP) — Cautleyan Stage (OU) | ||
| Lithological Description: | Flaggy wacke and siltstone turbidites. | ||
| Definition of Lower Boundary: | Conformable on the Mill Formation. | ||
| Definition of Upper Boundary: | Conformably overlain by the Auldthorns Formation, which is part of the Drummock Subgroup. | ||
| Thickness: | About 300 m thick. | ||
| Geographical Limits: | Girvan area, south-west Scotland. | ||
| Parent Unit: | Whitehouse Subgroup (WHE) | ||
| Previous Name(s): | Shalloch Flagstone Formation [Obsolete Name and Code: Use SLH]
(-4331)
Barren Flagstones [Obsolete Name and Code: Use SLH] (-3035) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Type Section | Coast, Woodland Point, south of 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, 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). | |||
| Ingham, J K, 1978. Geology of a continental margin 2: Middle and late Ordovician transgression, Girvan. "In" Bones, D R and Leake, B E. Crustal Evolution in North Western Britain and Adjacent Regions. Geological Journal Special Issue, No.10. p.163-176. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| S008 S007 | |||