The BGS Lexicon of Named Rock Units — Result Details
Drumyork Flags Formation
Computer Code: | DYF | Preferred Map Code: | DYF |
---|---|---|---|
Status Code: | Full | ||
Age range: | Llandovery Epoch (SL) — Llandovery Epoch (SL) | ||
Lithological Description: | Grey-green sandstone, flaggy towards top. | ||
Definition of Lower Boundary: | Rests conformably on Lauchlan Formation. | ||
Definition of Upper Boundary: | Conformably overlain by Blair Shale. | ||
Thickness: | 610m | ||
Geographical Limits: | Girvan area, south-west Scotland. | ||
Parent Unit: | Dailly Subgroup (DAI) | ||
Previous Name(s): | Drumyork Flags [Obsolete Name And Code: Use DYF]
(DYFC)
Bargany Formation [Obsolete Name And Code: Use (Part Of) DYF] (BGY) Glenfoot Beds [Obsolete Name And Code: Use (Part Of) DYF] (GLFT) Blackwood Beds [Obsolete Name And Code: Use (Part Of) DYF] (BWD) |
||
Alternative Name(s): | none recorded or not applicable | ||
Stratotypes: | |||
Reference Section | Lauchlan Burn, Girvan. | ||
Type Section | Penwhapple Burn, Girvan. | ||
Reference(s): | |||
Lapworth, C, 1882. The Girvan Succession. Quarterly Journal of the Geological Society of London, Vol. 38, 537-666. | |||
Floyd, J D and Williams, M. 2003. A revised correlation of Silurian rocks in the Girvan district, SW Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences, Vol. 93 (for 2002), 383-92. | |||
Cocks, L R M and Toghill, P, 1973. The biostratigraphy of the Silurian rocks of the Girvan District, Scotland. Journal of the Geological Society of London, Vol. 129, 209-243. | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
S008 |