The BGS Lexicon of Named Rock Units — Result Details
St David's Granophyre
| Computer Code: | SDIN | Preferred Map Code: | notEntered |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Ediacaran Period (AD) — Ediacaran Period (AD) | ||
| Lithological Description: | Granophyric granite. | ||
| Definition of Lower Boundary: | Intruded into Neoproterozoic rocks. | ||
| Definition of Upper Boundary: | Not applicable: unconformably overlain by Cambrian sandstones. | ||
| Thickness: | Unknown. | ||
| Geographical Limits: | St David's Peninsula, Pembrokeshire. | ||
| Parent Unit: | Pebidian Supergroup (PN) | ||
| Previous Name(s): | St David's Intrusion [Obsolete Name and Code: Use SDIN]
(-2414)
St David's Granite [Obsolete Name and Code: Use SDIN] (-1808) |
||
| Alternative Name(s): | none recorded or not applicable | ||
| Stratotypes: | |||
| Partial Type Section | Eastern side of Porthlysgi Bay. Bevins, R E and Horak, J. 2000. | ||
| Partial Type Section | Farm track, northwest of Porth Clais. Bevins, R E and Horak, J. 2000. | ||
| Reference(s): | |||
| Earp, J R. 1973. St David's Solid. 1:25 000, Geological Special Sheet, England and Wales. (London: Institute of Geological Sciences.) | |||
| Bloxam, T W, and Dirk, M H J. 1988. The petrology and geochemistry of the St David's granophyre and the Cwm Bach rhyolite, Pembrokeshire, Dyfed. Mineralogical Magazine, Vol. 52, 563-575. | |||
| Bevins, R E, and Horak, J. 2000. St David's Peninsula. 131-136 in Precambrian Rocks of England and Wales. Carney, J (editor). Geological Conservation Review Series, 20. (Peterborough: Joint Nature Conservation Committee.) | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| none recorded or not applicable | |||