The BGS Lexicon of Named Rock Units — Result Details
St David's Granophyre
Computer Code: | SDIN | Preferred Map Code: | notEntered |
---|---|---|---|
Status Code: | Index Level | ||
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): | |||
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 amd Horak, J. 2000. St David's Peninsula. 131-136 in Carney, J (Editor), Precambrian Rocks of England and Wales. Geological Conservation Review Series, 20. [Peterborough: Joint Nature Conservation Committee.] | |||
Earp, J R. 1973. St David's Solid. 1:25 000, Geological Special Sheet, England and Wales. [London: Institute of Geological Sciences.] | |||
1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
none recorded or not applicable |