The BGS Lexicon of Named Rock Units — Result Details
Stapeley Volcanic Member
| Computer Code: | SYV | Preferred Map Code: | SyV |
|---|---|---|---|
| Status Code: | Pending Upgrade | ||
| Age range: | Abereiddian Stage (O2) — Abereiddian Stage (O2) | ||
| Lithological Description: | Volcaniclastic members and two basaltic-andesite lava/pyroclastic members - the Todleth and Llan Fawr members, (Lynas, 1983). | ||
| Definition of Lower Boundary: | Overlies Mytton Flags Formation. | ||
| Definition of Upper Boundary: | Underlies Weston Flags Formation, Middleton Group. | ||
| Thickness: | Very variable. | ||
| Geographical Limits: | Not defined. | ||
| Parent Unit: | Hope Shale Formation (HOSH) | ||
| Previous Name(s): | Stapeley Ash [Obsolete Name and Code: Use SYV]
(-2470)
Stapeley Member [Obsolete Name and Code: Use SYV] (-2471) Stapeley Volcanic Formation [Obsolete Name and Code: Use SYV] (-3705) Stapeley Volcanic Group [Obsolete Name and Code: Use SYV] (-3706) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| none recorded or not applicable | |||
| Reference(s): | |||
| Lapworth, C . 1887. The Ordovician rocks of Shropshire. British Association for the Advancement of Science. Report for 1886. Birmingham Meeting 662. | |||
| Whittard, W F. 1931. The geology of the Ordovician and Valentian rocks of the Shelve Country, Shropshire. Proceedings of the Geologists' Association, Vol.42, 322-344. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| E165 E151 | |||