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 (-2414)
St David's Granite (-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.] 
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.] 
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. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable